[{"data":1,"prerenderedAt":2882},["ShallowReactive",2],{"blog-\u002Fblog\u002F2023\u002F07\u002Fhow-to-deploy-a-basic-opc-ua-server-in-node-red":3,"featureCatalog":1952,"changelog-titles":2347,"blog-all-for-related":2881},{"id":4,"title":5,"authors":6,"body":8,"cta":1925,"date":1929,"description":1930,"extension":1931,"features":1932,"image":1933,"lastUpdated":1934,"meta":1935,"navigation":464,"path":1941,"release":1932,"seo":1942,"sitemap":1943,"stem":1944,"subtitle":1945,"tags":1946,"tldr":1950,"video":1932,"__hash__":1951},"blog\u002Fblog\u002F2023\u002F07\u002Fhow-to-deploy-a-basic-opc-ua-server-in-node-red.md","How to Deploy a Basic OPC-UA Server in Node-RED - Part 1 (2026)",[7],"richard-meyer",{"type":9,"value":10,"toc":1918},"minimark",[11,15,20,23,26,45,49,64,73,76,83,92,100,106,109,116,130,133,137,152,161,164,170,189,472,487,736,739,746,753,760,787,793,800,810,817,823,834,837,870,873,901,912,1087,1090,1242,1245,1585,1588,1796,1803,1823,1830,1836,1840,1849,1852,1864,1867,1881,1887,1898,1904,1908,1911,1914],[12,13,14],"p",{},"This article is the first part of a series of OPC-UA content.  Here, we will explain some basic concepts of OPC-UA as they apply to building a server in Node-RED, then walk through and deploy an example OPC-UA Server.",[16,17,19],"h2",{"id":18},"what-is-opc-ua","What is OPC-UA?",[12,21,22],{},"Open Platform Communications Unified Architecture (OPC UA) is an open, platform independent communication framework frequently utilized in industrial automation, and is considered one of the key protocol standards for Industry 4.0 and Industrial IoT (IIoT).  The standard is developed and maintained by a consortium called the OPC Foundation, with recognizable industry names such as Siemens, Honeywell, Microsoft, Beckhoff, SAP, Yokogawa, ABB, Rockwell, and Schneider Electric.",[12,24,25],{},"Because of OPC-UA’s wide industry acceptance, it is increasingly becoming natively supported on devices and systems spanning the entirety of the automation pyramid.",[12,27,28,34],{},[29,30],"img",{"alt":31,"src":32,"title":33},"\"Automation Pyramid\"","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fautomation-pyramid.jpg","Automation Pyramid",[35,36,37,38],"em",{},"Image reference - ",[39,40,44],"a",{"href":41,"rel":42},"https:\u002F\u002Fwww.motioncontroltips.com\u002Fwhat-is-opc-ua-and-how-does-it-compare-with-industrial-ethernet\u002F",[43],"nofollow","imagecontroltips.com",[16,46,48],{"id":47},"fieldbus-model-vs-opc-ua-information-model","Fieldbus Model vs OPC-UA Information Model",[12,50,51,52,57],{},"As of today, industrial ethernet fieldbuses dominate the field\u002Fdevice-level (level 0) and controller\u002FPLC-level (level 1) of the automation pyramid.\n",[29,53],{"alt":54,"src":55,"title":56},"\"OPC-UA Pyramid\"","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002FOPC-UA-pyramid-2.webp","OPC-UA Pyramid",[35,58,37,59],{},[39,60,63],{"href":61,"rel":62},"https:\u002F\u002Fwww.mdpi.com\u002F1424-8220\u002F21\u002F14\u002F4656",[43],"mdpi.com",[12,65,66,67,72],{},"Fieldbuses such as Profinet, Ethernet\u002FIP, and EtherCAT, employ deterministic, real-time communication, which is essential for mission-critical and safety-oriented automation tasks.  OPC-UA is most commonly encountered at the SCADA level and above (level 2-4).  However, with the inclusion of ",[39,68,71],{"href":69,"rel":70},"https:\u002F\u002Fwww.tttech-industrial.com\u002Fresource-library\u002Fblog-posts\u002Fopc-ua-fx",[43],"Time Sensitive Networking (TSN) into the OPC-UA technology stack",", OPC-UA can be feasibly used for real-time communication all the way down to the device level.",[12,74,75],{},"Traditionally, fieldbus protocols transmit only raw data from field devices (ie, a float to represent a pressure, or a boolean to represent the position of a switch).  The fieldbus data gets pushed up the automation stack layer by layer, where eventually it will be converted to a format suitable for IT systems to consume (such as OPC-UA).",[12,77,78],{},[29,79],{"alt":80,"src":81,"title":82},"\"Fieldbus Model\"","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Ffieldbus-model.png","Fieldbus Model",[12,84,85,86,91],{},"In contrast to fieldbus protocols, OPC-UA represents automation data in the form of nodes. The framework for constructing nodes is referred to as the ",[39,87,90],{"href":88,"rel":89},"https:\u002F\u002Freference.opcfoundation.org\u002FCore\u002FPart5\u002Fv104\u002Fdocs\u002F",[43],"OPC Information model",", and consists of pre-defined classes and methods that are programmed in the OPC Server address space.",[12,93,94,99],{},[29,95],{"alt":96,"src":97,"title":98},"\"OPC Information Model\"","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fopc-information-model.png","OPC Information Model","\nDevices can be described as objects that give a holistic view of the device, beyond simply the raw value.  To construct a device object, we can take different individual attributes associated with a device, such as the transmitter raw value, transmitter fault flag, alarm setpoint, and combine them, similar to how user-defined datatypes (UDTs) are objects used to represent devices in PLCs.  The information model also defines a folder structure, to allow devices information to reside in a structured hierarchy.  Using the example temperature transmitter above, an example folder structure can be constructed as follows:",[12,101,102],{},[103,104,105],"code",{},"\u002FRoot\u002FObjects\u002FCalcinator 1 PLC\u002FTemperature Transmitters\u002FTank 1 Temperature\u002FTransmitter Value",[12,107,108],{},"This folder structure will be exposed via the OPC Client browser, allowing end-users to easily “drill down” to individual node information in a logical manner.",[12,110,111,115],{},[29,112],{"alt":113,"src":114,"title":98},"\"OPC Client Browser\"","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fopc-client-browser.png","\nIn summary, OPC-UA represents a trade-off between complex information modeling, with the versatility for that data to be consumed by devices and systems all the way up the automation pyramid layers.  The data does not have to pass through subsequent automation layers on the way up, nor does the data need to undergo any conversion along the way.",[12,117,118,123],{},[29,119],{"alt":120,"src":121,"title":122},"\"OPC-UA Distributed Model\"","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002FOPC-UA-distributed-model.jpg","OPC-UA Distributed Model",[35,124,37,125],{},[39,126,129],{"href":127,"rel":128},"https:\u002F\u002Fifr.org\u002Fpost\u002Ffaster-robot-communication-through-the-opc-robotics-companion-specification",[43],"ifr.org",[12,131,132],{},"The OPC client simply needs to subscribe to the OPC Server endpoint url (ex. opc.tcp:\u002F\u002Fserver.address), and the client will be able to browse the structured OPC data as it’s modeled in the server.  Any client will receive the information in the same manner, regardless if it’s a PLC, SCADA, MES, or ERP system.  This opens the possibility for horizontal and vertical system integration in a standardized manner. Additionally, the more information that is exposed about a device, the easier it is to track, and use said data to autonomously reconfigure, or pre-emptively take maintenance actions.",[16,134,136],{"id":135},"deploying-an-example-opc-ua-server-in-node-red","Deploying an Example OPC-UA Server in Node-RED",[12,138,139,140,145,146,151],{},"With some background on OPC-UA and how information is modeled in mind, we can take a look at the ",[39,141,144],{"href":142,"rel":143},"https:\u002F\u002Fflows.nodered.org\u002Fnode\u002Fnode-red-contrib-opcua-server",[43],"node-red-contrib-opcua-server"," node, which is merely a compact version of the ",[39,147,150],{"href":148,"rel":149},"https:\u002F\u002Fflows.nodered.org\u002Fnode\u002Fnode-red-contrib-opcua",[43],"node-red-contrib-opcua"," node that only focuses on the OPC-UA server and hence requires less dependencies.",[12,153,154,155,160],{},"An ",[39,156,159],{"href":157,"rel":158},"https:\u002F\u002Fgithub.com\u002FBiancoRoyal\u002Fnode-red-contrib-opcua-server\u002Fblob\u002Fmaster\u002Fexamples\u002Fserver-with-context.json",[43],"example flow"," is provided on github that can serve as a basis for understanding how a OPC-UA server is constructed.  Let’s get the example server up and running.",[12,162,163],{},"Deploying the example flow yields the following result -",[12,165,166],{},[29,167],{"alt":168,"src":169,"title":168},"Compact Server Flow","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fcompact-server-flow.png",[171,172,173],"ul",{},[174,175,176,177,180,181,184,185,188],"li",{},"an inject node is trigging the function ",[103,178,179],{},"set flow context Inputs"," at a one second interval, which creates 7 randomly generated float values and stores them as flow context variables, ",[103,182,183],{},"isoInput2"," - ",[103,186,187],{},"isoInput8"," (isolated inputs).  The values will change to a new random number each time the node is injected.",[190,191,196],"pre",{"className":192,"code":193,"language":194,"meta":195,"style":195},"language-javascript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","flow.set('isoInput2', Math.random() + 12.0)\nflow.set('isoInput3', Math.random() + 13.0)\nflow.set('isoInput4', Math.random() + 14.0)\nflow.set('isoInput5', Math.random() + 15.0)\nflow.set('isoInput6', Math.random() + 16.0)\nflow.set('isoInput7', Math.random() + 17.0)\nflow.set('isoInput8', Math.random() + 18.0)\n\n...\n","javascript","",[103,197,198,250,285,320,355,390,425,459,466],{"__ignoreMap":195},[199,200,203,207,211,215,218,221,224,226,229,232,234,237,240,243,247],"span",{"class":201,"line":202},"line",1,[199,204,206],{"class":205},"sTEyZ","flow",[199,208,210],{"class":209},"sMK4o",".",[199,212,214],{"class":213},"s2Zo4","set",[199,216,217],{"class":205},"(",[199,219,220],{"class":209},"'",[199,222,183],{"class":223},"sfazB",[199,225,220],{"class":209},[199,227,228],{"class":209},",",[199,230,231],{"class":205}," Math",[199,233,210],{"class":209},[199,235,236],{"class":213},"random",[199,238,239],{"class":205},"() ",[199,241,242],{"class":209},"+",[199,244,246],{"class":245},"sbssI"," 12.0",[199,248,249],{"class":205},")\n",[199,251,253,255,257,259,261,263,266,268,270,272,274,276,278,280,283],{"class":201,"line":252},2,[199,254,206],{"class":205},[199,256,210],{"class":209},[199,258,214],{"class":213},[199,260,217],{"class":205},[199,262,220],{"class":209},[199,264,265],{"class":223},"isoInput3",[199,267,220],{"class":209},[199,269,228],{"class":209},[199,271,231],{"class":205},[199,273,210],{"class":209},[199,275,236],{"class":213},[199,277,239],{"class":205},[199,279,242],{"class":209},[199,281,282],{"class":245}," 13.0",[199,284,249],{"class":205},[199,286,288,290,292,294,296,298,301,303,305,307,309,311,313,315,318],{"class":201,"line":287},3,[199,289,206],{"class":205},[199,291,210],{"class":209},[199,293,214],{"class":213},[199,295,217],{"class":205},[199,297,220],{"class":209},[199,299,300],{"class":223},"isoInput4",[199,302,220],{"class":209},[199,304,228],{"class":209},[199,306,231],{"class":205},[199,308,210],{"class":209},[199,310,236],{"class":213},[199,312,239],{"class":205},[199,314,242],{"class":209},[199,316,317],{"class":245}," 14.0",[199,319,249],{"class":205},[199,321,323,325,327,329,331,333,336,338,340,342,344,346,348,350,353],{"class":201,"line":322},4,[199,324,206],{"class":205},[199,326,210],{"class":209},[199,328,214],{"class":213},[199,330,217],{"class":205},[199,332,220],{"class":209},[199,334,335],{"class":223},"isoInput5",[199,337,220],{"class":209},[199,339,228],{"class":209},[199,341,231],{"class":205},[199,343,210],{"class":209},[199,345,236],{"class":213},[199,347,239],{"class":205},[199,349,242],{"class":209},[199,351,352],{"class":245}," 15.0",[199,354,249],{"class":205},[199,356,358,360,362,364,366,368,371,373,375,377,379,381,383,385,388],{"class":201,"line":357},5,[199,359,206],{"class":205},[199,361,210],{"class":209},[199,363,214],{"class":213},[199,365,217],{"class":205},[199,367,220],{"class":209},[199,369,370],{"class":223},"isoInput6",[199,372,220],{"class":209},[199,374,228],{"class":209},[199,376,231],{"class":205},[199,378,210],{"class":209},[199,380,236],{"class":213},[199,382,239],{"class":205},[199,384,242],{"class":209},[199,386,387],{"class":245}," 16.0",[199,389,249],{"class":205},[199,391,393,395,397,399,401,403,406,408,410,412,414,416,418,420,423],{"class":201,"line":392},6,[199,394,206],{"class":205},[199,396,210],{"class":209},[199,398,214],{"class":213},[199,400,217],{"class":205},[199,402,220],{"class":209},[199,404,405],{"class":223},"isoInput7",[199,407,220],{"class":209},[199,409,228],{"class":209},[199,411,231],{"class":205},[199,413,210],{"class":209},[199,415,236],{"class":213},[199,417,239],{"class":205},[199,419,242],{"class":209},[199,421,422],{"class":245}," 17.0",[199,424,249],{"class":205},[199,426,428,430,432,434,436,438,440,442,444,446,448,450,452,454,457],{"class":201,"line":427},7,[199,429,206],{"class":205},[199,431,210],{"class":209},[199,433,214],{"class":213},[199,435,217],{"class":205},[199,437,220],{"class":209},[199,439,187],{"class":223},[199,441,220],{"class":209},[199,443,228],{"class":209},[199,445,231],{"class":205},[199,447,210],{"class":209},[199,449,236],{"class":213},[199,451,239],{"class":205},[199,453,242],{"class":209},[199,455,456],{"class":245}," 18.0",[199,458,249],{"class":205},[199,460,462],{"class":201,"line":461},8,[199,463,465],{"emptyLinePlaceholder":464},true,"\n",[199,467,469],{"class":201,"line":468},9,[199,470,471],{"class":209},"...\n",[171,473,474],{},[174,475,476,477,480,481,184,484,188],{},"another inject node is triggering the function ",[103,478,479],{},"set flow context Outputs",", also at a one second interval, which creates another set of 7 randomly generated float values and stores them as flow context variables, ",[103,482,483],{},"isoOutput2",[103,485,486],{},"isoOutput8",[190,488,490],{"className":192,"code":489,"language":194,"meta":195,"style":195},"flow.set('isoOutput2', Math.random() + 2.0)\nflow.set('isoOutput3', Math.random() + 3.0)\nflow.set('isoOutput4', Math.random() + 4.0)\nflow.set('isoOutput5', Math.random() + 5.0)\nflow.set('isoOutput6', Math.random() + 6.0)\nflow.set('isoOutput7', Math.random() + 7.0)\nflow.set('isoOutput8', Math.random() + 8.0)\n\n...\n",[103,491,492,525,559,593,627,661,695,728,732],{"__ignoreMap":195},[199,493,494,496,498,500,502,504,506,508,510,512,514,516,518,520,523],{"class":201,"line":202},[199,495,206],{"class":205},[199,497,210],{"class":209},[199,499,214],{"class":213},[199,501,217],{"class":205},[199,503,220],{"class":209},[199,505,483],{"class":223},[199,507,220],{"class":209},[199,509,228],{"class":209},[199,511,231],{"class":205},[199,513,210],{"class":209},[199,515,236],{"class":213},[199,517,239],{"class":205},[199,519,242],{"class":209},[199,521,522],{"class":245}," 2.0",[199,524,249],{"class":205},[199,526,527,529,531,533,535,537,540,542,544,546,548,550,552,554,557],{"class":201,"line":252},[199,528,206],{"class":205},[199,530,210],{"class":209},[199,532,214],{"class":213},[199,534,217],{"class":205},[199,536,220],{"class":209},[199,538,539],{"class":223},"isoOutput3",[199,541,220],{"class":209},[199,543,228],{"class":209},[199,545,231],{"class":205},[199,547,210],{"class":209},[199,549,236],{"class":213},[199,551,239],{"class":205},[199,553,242],{"class":209},[199,555,556],{"class":245}," 3.0",[199,558,249],{"class":205},[199,560,561,563,565,567,569,571,574,576,578,580,582,584,586,588,591],{"class":201,"line":287},[199,562,206],{"class":205},[199,564,210],{"class":209},[199,566,214],{"class":213},[199,568,217],{"class":205},[199,570,220],{"class":209},[199,572,573],{"class":223},"isoOutput4",[199,575,220],{"class":209},[199,577,228],{"class":209},[199,579,231],{"class":205},[199,581,210],{"class":209},[199,583,236],{"class":213},[199,585,239],{"class":205},[199,587,242],{"class":209},[199,589,590],{"class":245}," 4.0",[199,592,249],{"class":205},[199,594,595,597,599,601,603,605,608,610,612,614,616,618,620,622,625],{"class":201,"line":322},[199,596,206],{"class":205},[199,598,210],{"class":209},[199,600,214],{"class":213},[199,602,217],{"class":205},[199,604,220],{"class":209},[199,606,607],{"class":223},"isoOutput5",[199,609,220],{"class":209},[199,611,228],{"class":209},[199,613,231],{"class":205},[199,615,210],{"class":209},[199,617,236],{"class":213},[199,619,239],{"class":205},[199,621,242],{"class":209},[199,623,624],{"class":245}," 5.0",[199,626,249],{"class":205},[199,628,629,631,633,635,637,639,642,644,646,648,650,652,654,656,659],{"class":201,"line":357},[199,630,206],{"class":205},[199,632,210],{"class":209},[199,634,214],{"class":213},[199,636,217],{"class":205},[199,638,220],{"class":209},[199,640,641],{"class":223},"isoOutput6",[199,643,220],{"class":209},[199,645,228],{"class":209},[199,647,231],{"class":205},[199,649,210],{"class":209},[199,651,236],{"class":213},[199,653,239],{"class":205},[199,655,242],{"class":209},[199,657,658],{"class":245}," 6.0",[199,660,249],{"class":205},[199,662,663,665,667,669,671,673,676,678,680,682,684,686,688,690,693],{"class":201,"line":392},[199,664,206],{"class":205},[199,666,210],{"class":209},[199,668,214],{"class":213},[199,670,217],{"class":205},[199,672,220],{"class":209},[199,674,675],{"class":223},"isoOutput7",[199,677,220],{"class":209},[199,679,228],{"class":209},[199,681,231],{"class":205},[199,683,210],{"class":209},[199,685,236],{"class":213},[199,687,239],{"class":205},[199,689,242],{"class":209},[199,691,692],{"class":245}," 7.0",[199,694,249],{"class":205},[199,696,697,699,701,703,705,707,709,711,713,715,717,719,721,723,726],{"class":201,"line":427},[199,698,206],{"class":205},[199,700,210],{"class":209},[199,702,214],{"class":213},[199,704,217],{"class":205},[199,706,220],{"class":209},[199,708,486],{"class":223},[199,710,220],{"class":209},[199,712,228],{"class":209},[199,714,231],{"class":205},[199,716,210],{"class":209},[199,718,236],{"class":213},[199,720,239],{"class":205},[199,722,242],{"class":209},[199,724,725],{"class":245}," 8.0",[199,727,249],{"class":205},[199,729,730],{"class":201,"line":461},[199,731,465],{"emptyLinePlaceholder":464},[199,733,734],{"class":201,"line":468},[199,735,471],{"class":209},[12,737,738],{},"We can confirm the values are being stored in memory by checking the flow context data and pressing the refresh button.",[12,740,741],{},[29,742],{"alt":743,"src":744,"title":745},"\"Screenshot showing the Context Data option\"","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fcontext-data-1.png","Screenshot showing the Context Data option",[12,747,748,752],{},[29,749],{"alt":750,"src":751,"title":750},"Screenshot showing the flow variables in the context data tab","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fcontext-data-2.png","\nEach time we hit refresh, the values change, confirming that the values are randomly changing every second.",[12,754,755,756,759],{},"The last, and most important part of the flow, is the ",[103,757,758],{},"Compact-Server"," node, which actually stands alone without any incoming or outgoing connections.",[12,761,762,767,768,770,771,774,775,778,779,782,783,786],{},[29,763],{"alt":764,"src":765,"title":766},"\"Compact Server Node\"","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fcompact-server-node.png","Compact Server Node","\nIn the ",[103,769,758],{}," node properties, the first tab is ",[103,772,773],{},"Settings",", and the two important properties here are ",[103,776,777],{},"Port"," and ",[103,780,781],{},"Show Errors",".  As can be seen in the node screenshot above, the node is reporting ",[103,784,785],{},"active",", which means the server is configured correctly.",[12,788,789],{},[29,790],{"alt":791,"src":792,"title":791},"Screenshot showing the Settings Tab of compact server node","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fsettings-tab.png",[12,794,795,796,799],{},"The ",[103,797,798],{},"Limits"," tab specifies some default limits that we can configure if we like, but are not necessary to be modified for test purposes.",[12,801,795,802,805,806,809],{},[103,803,804],{},"Security"," tab has one important option, ",[103,807,808],{},"Allow Anonymous",".  By default, anonymous access is enabled.",[12,811,812,816],{},[29,813],{"alt":814,"src":815,"title":814},"Screenshot showing the Security Tab of compact server node","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fsecurity-tab.png","\nFor a production system, we will want to enable security, but for test purposes, we will leave anonymous access enabled.",[12,818,819,822],{},[103,820,821],{},"Users & Sets"," tab is related to security and permissions.  We can leave this empty for testing.",[12,824,795,825,828,829,210],{},[103,826,827],{},"Address Space"," tab is where our server OPC Information Model is constructed, using classes and methods from the ",[39,830,833],{"href":831,"rel":832},"https:\u002F\u002Fnode-opcua.github.io\u002F",[43],"node-opcua sdk",[12,835,836],{},"Breaking down the provided example code for further context, it starts with a function that is responsible for invoking the OPC-UA server,",[190,838,840],{"className":192,"code":839,"language":194,"meta":195,"style":195},"  const opcua = coreServer.choreCompact.opcua;\n",[103,841,842],{"__ignoreMap":195},[199,843,844,848,851,854,857,859,862,864,867],{"class":201,"line":202},[199,845,847],{"class":846},"spNyl","  const",[199,849,850],{"class":205}," opcua ",[199,852,853],{"class":209},"=",[199,855,856],{"class":205}," coreServer",[199,858,210],{"class":209},[199,860,861],{"class":205},"choreCompact",[199,863,210],{"class":209},[199,865,866],{"class":205},"opcua",[199,868,869],{"class":209},";\n",[12,871,872],{},"and then the namespace is created.",[190,874,876],{"className":192,"code":875,"language":194,"meta":195,"style":195},"const namespace = addressSpace.getOwnNamespace();\n",[103,877,878],{"__ignoreMap":195},[199,879,880,883,886,888,891,893,896,899],{"class":201,"line":202},[199,881,882],{"class":846},"const",[199,884,885],{"class":205}," namespace ",[199,887,853],{"class":209},[199,889,890],{"class":205}," addressSpace",[199,892,210],{"class":209},[199,894,895],{"class":213},"getOwnNamespace",[199,897,898],{"class":205},"()",[199,900,869],{"class":209},[12,902,903,904,907,908,911],{},"Further down, the variables that will be published by the server (which are our ",[103,905,906],{},"isoInput"," & ",[103,909,910],{},"isoOutput"," flow context variables) are initialized,",[190,913,915],{"className":192,"code":914,"language":194,"meta":195,"style":195},"  this.sandboxFlowContext.set(\"isoInput1\", 0);\n  this.setInterval(() => {\n    flexServerInternals.sandboxFlowContext.set(\n      \"isoInput1\",\n      Math.random() + 50.0\n    );\n  }, 500);\n  this.sandboxFlowContext.set(\"isoInput2\", 0);\n  this.sandboxFlowContext.set(\"isoInput3\", 0);\n...\n",[103,916,917,949,966,983,995,1011,1018,1030,1056,1082],{"__ignoreMap":195},[199,918,919,922,925,927,929,931,934,937,939,941,944,947],{"class":201,"line":202},[199,920,921],{"class":209},"  this.",[199,923,924],{"class":205},"sandboxFlowContext",[199,926,210],{"class":209},[199,928,214],{"class":213},[199,930,217],{"class":205},[199,932,933],{"class":209},"\"",[199,935,936],{"class":223},"isoInput1",[199,938,933],{"class":209},[199,940,228],{"class":209},[199,942,943],{"class":245}," 0",[199,945,946],{"class":205},")",[199,948,869],{"class":209},[199,950,951,953,956,958,960,963],{"class":201,"line":252},[199,952,921],{"class":209},[199,954,955],{"class":213},"setInterval",[199,957,217],{"class":205},[199,959,898],{"class":209},[199,961,962],{"class":846}," =>",[199,964,965],{"class":209}," {\n",[199,967,968,971,973,975,977,979],{"class":201,"line":287},[199,969,970],{"class":205},"    flexServerInternals",[199,972,210],{"class":209},[199,974,924],{"class":205},[199,976,210],{"class":209},[199,978,214],{"class":213},[199,980,982],{"class":981},"swJcz","(\n",[199,984,985,988,990,992],{"class":201,"line":322},[199,986,987],{"class":209},"      \"",[199,989,936],{"class":223},[199,991,933],{"class":209},[199,993,994],{"class":209},",\n",[199,996,997,1000,1002,1004,1006,1008],{"class":201,"line":357},[199,998,999],{"class":205},"      Math",[199,1001,210],{"class":209},[199,1003,236],{"class":213},[199,1005,239],{"class":981},[199,1007,242],{"class":209},[199,1009,1010],{"class":245}," 50.0\n",[199,1012,1013,1016],{"class":201,"line":392},[199,1014,1015],{"class":981},"    )",[199,1017,869],{"class":209},[199,1019,1020,1023,1026,1028],{"class":201,"line":427},[199,1021,1022],{"class":209},"  },",[199,1024,1025],{"class":245}," 500",[199,1027,946],{"class":205},[199,1029,869],{"class":209},[199,1031,1032,1034,1036,1038,1040,1042,1044,1046,1048,1050,1052,1054],{"class":201,"line":461},[199,1033,921],{"class":209},[199,1035,924],{"class":205},[199,1037,210],{"class":209},[199,1039,214],{"class":213},[199,1041,217],{"class":205},[199,1043,933],{"class":209},[199,1045,183],{"class":223},[199,1047,933],{"class":209},[199,1049,228],{"class":209},[199,1051,943],{"class":245},[199,1053,946],{"class":205},[199,1055,869],{"class":209},[199,1057,1058,1060,1062,1064,1066,1068,1070,1072,1074,1076,1078,1080],{"class":201,"line":468},[199,1059,921],{"class":209},[199,1061,924],{"class":205},[199,1063,210],{"class":209},[199,1065,214],{"class":213},[199,1067,217],{"class":205},[199,1069,933],{"class":209},[199,1071,265],{"class":223},[199,1073,933],{"class":209},[199,1075,228],{"class":209},[199,1077,943],{"class":245},[199,1079,946],{"class":205},[199,1081,869],{"class":209},[199,1083,1085],{"class":201,"line":1084},10,[199,1086,471],{"class":209},[12,1088,1089],{},"and an OPC folder structure is defined.",[190,1091,1093],{"className":192,"code":1092,"language":194,"meta":195,"style":195},"  coreServer.debugLog(\"init dynamic address space\");\n  const rootFolder = addressSpace.findNode(\"RootFolder\");\n\n  node.warn(\"construct new address space for OPC UA\");\n\n  const myDevice = namespace.addFolder(rootFolder.objects, {\n    \"browseName\": \"RaspberryPI-Zero-WLAN\"\n  });\n...\n",[103,1094,1095,1118,1147,1151,1174,1178,1207,1229,1238],{"__ignoreMap":195},[199,1096,1097,1100,1102,1105,1107,1109,1112,1114,1116],{"class":201,"line":202},[199,1098,1099],{"class":205},"  coreServer",[199,1101,210],{"class":209},[199,1103,1104],{"class":213},"debugLog",[199,1106,217],{"class":205},[199,1108,933],{"class":209},[199,1110,1111],{"class":223},"init dynamic address space",[199,1113,933],{"class":209},[199,1115,946],{"class":205},[199,1117,869],{"class":209},[199,1119,1120,1122,1125,1127,1129,1131,1134,1136,1138,1141,1143,1145],{"class":201,"line":252},[199,1121,847],{"class":846},[199,1123,1124],{"class":205}," rootFolder ",[199,1126,853],{"class":209},[199,1128,890],{"class":205},[199,1130,210],{"class":209},[199,1132,1133],{"class":213},"findNode",[199,1135,217],{"class":205},[199,1137,933],{"class":209},[199,1139,1140],{"class":223},"RootFolder",[199,1142,933],{"class":209},[199,1144,946],{"class":205},[199,1146,869],{"class":209},[199,1148,1149],{"class":201,"line":287},[199,1150,465],{"emptyLinePlaceholder":464},[199,1152,1153,1156,1158,1161,1163,1165,1168,1170,1172],{"class":201,"line":322},[199,1154,1155],{"class":205},"  node",[199,1157,210],{"class":209},[199,1159,1160],{"class":213},"warn",[199,1162,217],{"class":205},[199,1164,933],{"class":209},[199,1166,1167],{"class":223},"construct new address space for OPC UA",[199,1169,933],{"class":209},[199,1171,946],{"class":205},[199,1173,869],{"class":209},[199,1175,1176],{"class":201,"line":357},[199,1177,465],{"emptyLinePlaceholder":464},[199,1179,1180,1182,1185,1187,1190,1192,1195,1198,1200,1203,1205],{"class":201,"line":392},[199,1181,847],{"class":846},[199,1183,1184],{"class":205}," myDevice ",[199,1186,853],{"class":209},[199,1188,1189],{"class":205}," namespace",[199,1191,210],{"class":209},[199,1193,1194],{"class":213},"addFolder",[199,1196,1197],{"class":205},"(rootFolder",[199,1199,210],{"class":209},[199,1201,1202],{"class":205},"objects",[199,1204,228],{"class":209},[199,1206,965],{"class":209},[199,1208,1209,1212,1215,1217,1220,1223,1226],{"class":201,"line":427},[199,1210,1211],{"class":209},"    \"",[199,1213,1214],{"class":981},"browseName",[199,1216,933],{"class":209},[199,1218,1219],{"class":209},":",[199,1221,1222],{"class":209}," \"",[199,1224,1225],{"class":223},"RaspberryPI-Zero-WLAN",[199,1227,1228],{"class":209},"\"\n",[199,1230,1231,1234,1236],{"class":201,"line":461},[199,1232,1233],{"class":209},"  }",[199,1235,946],{"class":205},[199,1237,869],{"class":209},[199,1239,1240],{"class":201,"line":468},[199,1241,471],{"class":209},[12,1243,1244],{},"Then, with our variables and folder structure defined, nodes are added to the namespace for each context variable.",[190,1246,1248],{"className":192,"code":1247,"language":194,"meta":195,"style":195},"  const gpioDI1 = namespace.addVariable({\n    \"organizedBy\": isoInputs,\n    \"browseName\": \"I1\",\n    \"nodeId\": \"ns=1;s=Isolated_Input1\",\n    \"dataType\": \"Double\",\n    \"value\": {\n      \"get\": function() {\n        return new Variant({\n          \"dataType\": DataType.Double,\n          \"value\": flexServerInternals.sandboxFlowContext.get(\"isoInput1\")\n        });\n      },\n      \"set\": function(variant) {\n        flexServerInternals.sandboxFlowContext.set(\n          \"isoInput1\",\n          parseFloat(variant.value)\n        );\n        return opcua.StatusCodes.Good;\n      }\n    }\n  });\n\n...\n",[103,1249,1250,1271,1287,1306,1326,1346,1359,1377,1393,1413,1444,1454,1460,1483,1499,1510,1526,1534,1554,1560,1566,1575,1580],{"__ignoreMap":195},[199,1251,1252,1254,1257,1259,1261,1263,1266,1268],{"class":201,"line":202},[199,1253,847],{"class":846},[199,1255,1256],{"class":205}," gpioDI1 ",[199,1258,853],{"class":209},[199,1260,1189],{"class":205},[199,1262,210],{"class":209},[199,1264,1265],{"class":213},"addVariable",[199,1267,217],{"class":205},[199,1269,1270],{"class":209},"{\n",[199,1272,1273,1275,1278,1280,1282,1285],{"class":201,"line":252},[199,1274,1211],{"class":209},[199,1276,1277],{"class":981},"organizedBy",[199,1279,933],{"class":209},[199,1281,1219],{"class":209},[199,1283,1284],{"class":205}," isoInputs",[199,1286,994],{"class":209},[199,1288,1289,1291,1293,1295,1297,1299,1302,1304],{"class":201,"line":287},[199,1290,1211],{"class":209},[199,1292,1214],{"class":981},[199,1294,933],{"class":209},[199,1296,1219],{"class":209},[199,1298,1222],{"class":209},[199,1300,1301],{"class":223},"I1",[199,1303,933],{"class":209},[199,1305,994],{"class":209},[199,1307,1308,1310,1313,1315,1317,1319,1322,1324],{"class":201,"line":322},[199,1309,1211],{"class":209},[199,1311,1312],{"class":981},"nodeId",[199,1314,933],{"class":209},[199,1316,1219],{"class":209},[199,1318,1222],{"class":209},[199,1320,1321],{"class":223},"ns=1;s=Isolated_Input1",[199,1323,933],{"class":209},[199,1325,994],{"class":209},[199,1327,1328,1330,1333,1335,1337,1339,1342,1344],{"class":201,"line":357},[199,1329,1211],{"class":209},[199,1331,1332],{"class":981},"dataType",[199,1334,933],{"class":209},[199,1336,1219],{"class":209},[199,1338,1222],{"class":209},[199,1340,1341],{"class":223},"Double",[199,1343,933],{"class":209},[199,1345,994],{"class":209},[199,1347,1348,1350,1353,1355,1357],{"class":201,"line":392},[199,1349,1211],{"class":209},[199,1351,1352],{"class":981},"value",[199,1354,933],{"class":209},[199,1356,1219],{"class":209},[199,1358,965],{"class":209},[199,1360,1361,1363,1366,1368,1370,1373,1375],{"class":201,"line":427},[199,1362,987],{"class":209},[199,1364,1365],{"class":981},"get",[199,1367,933],{"class":209},[199,1369,1219],{"class":209},[199,1371,1372],{"class":846}," function",[199,1374,898],{"class":209},[199,1376,965],{"class":209},[199,1378,1379,1383,1386,1389,1391],{"class":201,"line":461},[199,1380,1382],{"class":1381},"s7zQu","        return",[199,1384,1385],{"class":209}," new",[199,1387,1388],{"class":213}," Variant",[199,1390,217],{"class":981},[199,1392,1270],{"class":209},[199,1394,1395,1398,1400,1402,1404,1407,1409,1411],{"class":201,"line":468},[199,1396,1397],{"class":209},"          \"",[199,1399,1332],{"class":981},[199,1401,933],{"class":209},[199,1403,1219],{"class":209},[199,1405,1406],{"class":205}," DataType",[199,1408,210],{"class":209},[199,1410,1341],{"class":205},[199,1412,994],{"class":209},[199,1414,1415,1417,1419,1421,1423,1426,1428,1430,1432,1434,1436,1438,1440,1442],{"class":201,"line":1084},[199,1416,1397],{"class":209},[199,1418,1352],{"class":981},[199,1420,933],{"class":209},[199,1422,1219],{"class":209},[199,1424,1425],{"class":205}," flexServerInternals",[199,1427,210],{"class":209},[199,1429,924],{"class":205},[199,1431,210],{"class":209},[199,1433,1365],{"class":213},[199,1435,217],{"class":981},[199,1437,933],{"class":209},[199,1439,936],{"class":223},[199,1441,933],{"class":209},[199,1443,249],{"class":981},[199,1445,1447,1450,1452],{"class":201,"line":1446},11,[199,1448,1449],{"class":209},"        }",[199,1451,946],{"class":981},[199,1453,869],{"class":209},[199,1455,1457],{"class":201,"line":1456},12,[199,1458,1459],{"class":209},"      },\n",[199,1461,1463,1465,1467,1469,1471,1473,1475,1479,1481],{"class":201,"line":1462},13,[199,1464,987],{"class":209},[199,1466,214],{"class":981},[199,1468,933],{"class":209},[199,1470,1219],{"class":209},[199,1472,1372],{"class":846},[199,1474,217],{"class":209},[199,1476,1478],{"class":1477},"sHdIc","variant",[199,1480,946],{"class":209},[199,1482,965],{"class":209},[199,1484,1486,1489,1491,1493,1495,1497],{"class":201,"line":1485},14,[199,1487,1488],{"class":205},"        flexServerInternals",[199,1490,210],{"class":209},[199,1492,924],{"class":205},[199,1494,210],{"class":209},[199,1496,214],{"class":213},[199,1498,982],{"class":981},[199,1500,1502,1504,1506,1508],{"class":201,"line":1501},15,[199,1503,1397],{"class":209},[199,1505,936],{"class":223},[199,1507,933],{"class":209},[199,1509,994],{"class":209},[199,1511,1513,1516,1518,1520,1522,1524],{"class":201,"line":1512},16,[199,1514,1515],{"class":213},"          parseFloat",[199,1517,217],{"class":981},[199,1519,1478],{"class":205},[199,1521,210],{"class":209},[199,1523,1352],{"class":205},[199,1525,249],{"class":981},[199,1527,1529,1532],{"class":201,"line":1528},17,[199,1530,1531],{"class":981},"        )",[199,1533,869],{"class":209},[199,1535,1537,1539,1542,1544,1547,1549,1552],{"class":201,"line":1536},18,[199,1538,1382],{"class":1381},[199,1540,1541],{"class":205}," opcua",[199,1543,210],{"class":209},[199,1545,1546],{"class":205},"StatusCodes",[199,1548,210],{"class":209},[199,1550,1551],{"class":205},"Good",[199,1553,869],{"class":209},[199,1555,1557],{"class":201,"line":1556},19,[199,1558,1559],{"class":209},"      }\n",[199,1561,1563],{"class":201,"line":1562},20,[199,1564,1565],{"class":209},"    }\n",[199,1567,1569,1571,1573],{"class":201,"line":1568},21,[199,1570,1233],{"class":209},[199,1572,946],{"class":205},[199,1574,869],{"class":209},[199,1576,1578],{"class":201,"line":1577},22,[199,1579,465],{"emptyLinePlaceholder":464},[199,1581,1583],{"class":201,"line":1582},23,[199,1584,471],{"class":209},[12,1586,1587],{},"Last, OPC views are defined.  Views create custom hierarchies our OPC Client can browse as an alternative to the default folder structure.",[190,1589,1591],{"className":192,"code":1590,"language":194,"meta":195,"style":195},"  const viewDI = namespace.addView({\n    \"organizedBy\": rootFolder.views,\n    \"browseName\": \"RPIW0-Digital-Ins\"\n  });\n\n  const viewDO = namespace.addView({\n    \"organizedBy\": rootFolder.views,\n    \"browseName\": \"RPIW0-Digital-Outs\"\n  });\n\n  viewDI.addReference({\n    \"referenceType\": \"Organizes\",\n    \"nodeId\": gpioDI1.nodeId\n  });\n\n...\n\n",[103,1592,1593,1613,1633,1650,1658,1662,1681,1699,1716,1724,1728,1742,1762,1780,1788,1792],{"__ignoreMap":195},[199,1594,1595,1597,1600,1602,1604,1606,1609,1611],{"class":201,"line":202},[199,1596,847],{"class":846},[199,1598,1599],{"class":205}," viewDI ",[199,1601,853],{"class":209},[199,1603,1189],{"class":205},[199,1605,210],{"class":209},[199,1607,1608],{"class":213},"addView",[199,1610,217],{"class":205},[199,1612,1270],{"class":209},[199,1614,1615,1617,1619,1621,1623,1626,1628,1631],{"class":201,"line":252},[199,1616,1211],{"class":209},[199,1618,1277],{"class":981},[199,1620,933],{"class":209},[199,1622,1219],{"class":209},[199,1624,1625],{"class":205}," rootFolder",[199,1627,210],{"class":209},[199,1629,1630],{"class":205},"views",[199,1632,994],{"class":209},[199,1634,1635,1637,1639,1641,1643,1645,1648],{"class":201,"line":287},[199,1636,1211],{"class":209},[199,1638,1214],{"class":981},[199,1640,933],{"class":209},[199,1642,1219],{"class":209},[199,1644,1222],{"class":209},[199,1646,1647],{"class":223},"RPIW0-Digital-Ins",[199,1649,1228],{"class":209},[199,1651,1652,1654,1656],{"class":201,"line":322},[199,1653,1233],{"class":209},[199,1655,946],{"class":205},[199,1657,869],{"class":209},[199,1659,1660],{"class":201,"line":357},[199,1661,465],{"emptyLinePlaceholder":464},[199,1663,1664,1666,1669,1671,1673,1675,1677,1679],{"class":201,"line":392},[199,1665,847],{"class":846},[199,1667,1668],{"class":205}," viewDO ",[199,1670,853],{"class":209},[199,1672,1189],{"class":205},[199,1674,210],{"class":209},[199,1676,1608],{"class":213},[199,1678,217],{"class":205},[199,1680,1270],{"class":209},[199,1682,1683,1685,1687,1689,1691,1693,1695,1697],{"class":201,"line":427},[199,1684,1211],{"class":209},[199,1686,1277],{"class":981},[199,1688,933],{"class":209},[199,1690,1219],{"class":209},[199,1692,1625],{"class":205},[199,1694,210],{"class":209},[199,1696,1630],{"class":205},[199,1698,994],{"class":209},[199,1700,1701,1703,1705,1707,1709,1711,1714],{"class":201,"line":461},[199,1702,1211],{"class":209},[199,1704,1214],{"class":981},[199,1706,933],{"class":209},[199,1708,1219],{"class":209},[199,1710,1222],{"class":209},[199,1712,1713],{"class":223},"RPIW0-Digital-Outs",[199,1715,1228],{"class":209},[199,1717,1718,1720,1722],{"class":201,"line":468},[199,1719,1233],{"class":209},[199,1721,946],{"class":205},[199,1723,869],{"class":209},[199,1725,1726],{"class":201,"line":1084},[199,1727,465],{"emptyLinePlaceholder":464},[199,1729,1730,1733,1735,1738,1740],{"class":201,"line":1446},[199,1731,1732],{"class":205},"  viewDI",[199,1734,210],{"class":209},[199,1736,1737],{"class":213},"addReference",[199,1739,217],{"class":205},[199,1741,1270],{"class":209},[199,1743,1744,1746,1749,1751,1753,1755,1758,1760],{"class":201,"line":1456},[199,1745,1211],{"class":209},[199,1747,1748],{"class":981},"referenceType",[199,1750,933],{"class":209},[199,1752,1219],{"class":209},[199,1754,1222],{"class":209},[199,1756,1757],{"class":223},"Organizes",[199,1759,933],{"class":209},[199,1761,994],{"class":209},[199,1763,1764,1766,1768,1770,1772,1775,1777],{"class":201,"line":1462},[199,1765,1211],{"class":209},[199,1767,1312],{"class":981},[199,1769,933],{"class":209},[199,1771,1219],{"class":209},[199,1773,1774],{"class":205}," gpioDI1",[199,1776,210],{"class":209},[199,1778,1779],{"class":205},"nodeId\n",[199,1781,1782,1784,1786],{"class":201,"line":1485},[199,1783,1233],{"class":209},[199,1785,946],{"class":205},[199,1787,869],{"class":209},[199,1789,1790],{"class":201,"line":1501},[199,1791,465],{"emptyLinePlaceholder":464},[199,1793,1794],{"class":201,"line":1512},[199,1795,471],{"class":209},[12,1797,1798,1799,1802],{},"Finally, on the ",[103,1800,1801],{},"Discovery"," tab, we must define an endpoint for an OPC Client to subscribe to.",[12,1804,795,1805,1808,1809,1812,1813,1815,1816,1819,1820],{},[103,1806,1807],{},"Endpoint Url"," follows the format ",[103,1810,1811],{},"opc.tcp:\u002F\u002F\u003Caddress>:port",".  Our port was defined on the ",[103,1814,773],{}," tab, which by default, is port ",[103,1817,1818],{},"54845",". The address will be either the url or ip address of your Node-RED instance.  In my case, it’s 192.168.0.114.  So my Endpoint Url = ",[103,1821,1822],{},"opc.tcp:\u002F\u002F192.168.0.114:54845",[12,1824,1825,1829],{},[29,1826],{"alt":1827,"src":1828,"title":1827},"Screenshot showing the Discovery Tab of compact server node","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fdiscovery-tab.png","\nOnce the endpoint url is added, deploy the flow, and confirm the server is reporting “active”.",[12,1831,1832],{},[29,1833],{"alt":1834,"src":1835,"title":1834},"Screenshot showing the Active Tab of compact server node","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fcompact-server-active.png",[16,1837,1839],{"id":1838},"connect-to-example-opc-server-using-opc-ua-browser","Connect to Example OPC-Server Using OPC-UA Browser",[12,1841,1842,1843,1848],{},"To connect to our OPC endpoint, we need an OPC Client.  Prosys provides a ",[39,1844,1847],{"href":1845,"rel":1846},"https:\u002F\u002Fwww.prosysopc.com\u002Fproducts\u002Fopc-ua-browser\u002F",[43],"free OPC-UA Browser ","that supports Windows, Linux, and Mac OS.  To test our Server, the Windows version of Prosys OPC-UA Browser will be utilized.",[12,1850,1851],{},"To connect to our Node-RED OPC server, enter the endpoint url and press “connect to server”.",[12,1853,1854,1859,1860,1863],{},[29,1855],{"alt":1856,"src":1857,"title":1858},"\"Screenshot showing the OPC Client\"","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fopc-client-connect.png","Screenshot showing the OPC Client","\nIt will ask for security.  Remember that we allowed anonymous access, so the default security mode of ",[103,1861,1862],{},"None"," is the correct option.",[12,1865,1866],{},"Once connected, we can browse our OPC Server.",[12,1868,1869,1873,1874,1877,1878,1880],{},[29,1870],{"alt":1871,"src":1872},"OPC Client UI","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fopc-client-ui.png","\nIf we navigate to ",[103,1875,1876],{},"Objects → RaspberryPI-Zero-WLAN → GPIO → Inputs",", we can see a list of inputs that correspond to the ",[103,1879,906],{}," context variables defined in the example flow, which are randomly generated numbers.",[12,1882,1883,1884,1886],{},"Clicking ",[103,1885,1301],{}," we can see the value in real-time, along with some additional properties.",[12,1888,1889,1893,1894,1897],{},[29,1890],{"alt":1891,"src":1892,"title":1891},"OPC Client Node","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fopc-client-node.png","\nIf we go to ",[103,1895,1896],{},"Views",", we can see the custom hierarchy defined in the example server, which divides the data by Digital-Ins and Digital-Outs.",[12,1899,1900],{},[29,1901],{"alt":1902,"src":1903},"OPC Client View","\u002Fblog\u002F2023\u002F07\u002Fimages\u002Fopc-ua-1\u002Fopc-client-view.png",[16,1905,1907],{"id":1906},"summary","Summary",[12,1909,1910],{},"In this article, we compare OPC-UA to traditional fieldbus protocols, explain the importance of the OPC UA Information Model to understand how data is modeled in the address space of an OPC Server, and then walk through and deploy an example compact OPC-UA Server flow.",[12,1912,1913],{},"In our next article, we will build a custom OPC-UA Server in Node-RED with data pulled from an Allen Bradley PLC over Ethernet\u002FIP, using the PLC data to develop a custom OPC UA Information Model programmed in the OPC server address space.",[1915,1916,1917],"style",{},"html pre.shiki code .sTEyZ, html code.shiki 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dashboards.","https:\u002F\u002Fdashboard.flowfuse.com\u002Fuser\u002Fmulti-tenancy.html",{"edge":464,"hub":464,"fleet":464},{"id":2063,"title":2064,"description":2065,"changelog":2066,"subfeature":464,"showOnPricing":1979,"tiers":2069},"dashboards-view","Dashboards View","Browse and open every dashboard across your team from a dedicated Dashboards view, at both team and application level, without leaving FlowFuse.",[2067],{"url":2068,"release":2032},"\u002Fchangelog\u002F2026\u002F07\u002Fteam-and-application-dashboards\u002F",{"edge":464,"hub":464,"fleet":464},{"id":2071,"title":2072,"description":2073,"docsLink":2074,"tiers":2075},"blueprints-converge","Blueprints","Ready-made starting points for your apps, from cross-team Converge templates to OT and IT specific blueprints.","\u002Fdocs\u002Fuser\u002Fconcepts\u002F#blueprint",{"edge":464,"hub":464,"fleet":464},{"id":2077,"title":2078,"subfeature":464,"showOnPricing":1979,"tiers":2079},"blueprints-ot-apps","Blueprints - OT 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Your preferences are remembered between sessions.",[2098],{"url":2099,"release":1989},"\u002Fchangelog\u002F2026\u002F04\u002Fimmersive-editor-drawer\u002F",{"edge":464,"hub":464,"fleet":464},{"id":2102,"title":2103,"description":2104,"changelog":2105,"showOnPricing":1979,"tiers":2108},"embedded-editor-tab-title","Embedded Editor Browser Tab Title","The browser tab title updates to reflect the active Node-RED canvas tab when working in the embedded editor.",[2106],{"url":2107,"release":2091},"\u002Fchangelog\u002F2026\u002F03\u002Fembedded-editor-tab-title\u002F",{"edge":464,"hub":464,"fleet":464},{"id":2110,"title":2111,"features":2112},"deploy","Deploy",[2113,2119,2128,2134,2140,2146,2152,2158,2163],{"id":2114,"title":2115,"description":2116,"docsLink":2117,"tiers":2118},"hosted-instances","Cloud Instances","Run Node-RED instances managed and hosted by FlowFuse.","\u002Fdocs\u002Fuser\u002Fintroduction\u002F#creating-a-node-red-instance",{"edge":464,"hub":464,"fleet":464},{"id":2120,"title":2121,"description":2122,"docsLink":2123,"changelog":2124,"tiers":2127},"edge-devices","Edge Instances","Deploy and mange your Node-RED instances on edge PLCs and gateways, with full visibility and control from the cloud.","\u002Fdocs\u002Fdevice-agent\u002Fintroduction\u002F",[2125],{"url":2126,"release":1969},"\u002Fchangelog\u002F2026\u002F02\u002Fdevice-agent-nodejs-options\u002F",{"edge":464,"hub":1979,"fleet":464},{"id":2129,"title":2130,"description":2131,"docsLink":2132,"tiers":2133},"custom-hostnames","Custom Hostnames","Access your Node-RED application via your own domain name.","\u002Fdocs\u002Fuser\u002Fcustom-hostnames\u002F",{"edge":1979,"hub":464,"fleet":1979},{"id":2135,"title":2136,"description":2137,"docsLink":2138,"tiers":2139},"mqtt-broker","MQTT Broker","Manage and create MQTT clients to transport data for efficient messaging and communication within your applications.","\u002Fdocs\u002Fuser\u002Fteambroker\u002F",{"edge":464,"hub":1979,"fleet":464},{"id":2141,"title":2142,"description":2143,"docsLink":2144,"showOnPricing":1979,"tiers":2145},"project-nodes","Project Nodes aka seamless project comms","FlowFuse Project Nodes enable the passing of data and messages between your Node-RED projects.","\u002Fdocs\u002Fuser\u002Fprojectnodes\u002F",{"edge":464,"hub":464,"fleet":464},{"id":2147,"title":2148,"description":2149,"docsLink":2150,"tiers":2151},"devops-pipelines","DevOps Pipelines","Set up different environments for development, testing, and production Node-RED instances to support a full software delivery lifecycle.","\u002Fdocs\u002Fuser\u002Fdevops-pipelines\u002F",{"edge":464,"hub":464,"fleet":464},{"id":2153,"title":2154,"description":2155,"docsLink":2156,"tiers":2157},"git-integration","Git Integration","Back up your flows to a remote Git repository through a DevOps Pipeline. Supports GitHub and Azure DevOps repositories.","\u002Fdocs\u002Fuser\u002Fdevops-pipelines\u002F#git-repository-stage",{"edge":1979,"hub":464,"fleet":1979},{"id":2159,"title":2160,"description":2161,"docsLink":2156,"subfeature":464,"showOnPricing":1979,"tiers":2162},"git-integration-github","GitHub","Push and pull snapshots to GitHub repositories through DevOps Pipeline Git Stages.",{"edge":1979,"hub":464,"fleet":1979},{"id":2164,"title":2165,"description":2166,"docsLink":2156,"changelog":2167,"subfeature":464,"showOnPricing":1979,"tiers":2170},"git-integration-azure","Azure DevOps","Push and pull snapshots to Azure DevOps repositories through DevOps Pipeline Git Stages.",[2168],{"url":2169,"release":2091},"\u002Fchangelog\u002F2026\u002F03\u002Fazure-dev-ops-gitops\u002F",{"edge":1979,"hub":464,"fleet":1979},{"id":2172,"title":2173,"features":2174},"operate-maintain","Operate & Maintain",[2175,2181,2187,2192,2200,2204,2208,2213,2219,2225,2230,2236,2240,2244],{"id":2176,"title":2177,"description":2178,"docsLink":2179,"tiers":2180},"snapshots","Snapshots & Version History","Automatic snapshots on remote devices and hosted instances, plus a full version history timeline so you can roll back to any prior state.","\u002Fdocs\u002Fuser\u002Fsnapshots\u002F",{"edge":464,"hub":464,"fleet":464},{"id":2182,"title":2183,"description":2184,"docsLink":2185,"subfeature":464,"showOnPricing":1979,"tiers":2186},"auto-snapshot-remote","Auto Snapshot (Remote)","Automatically capture a snapshot every time a remote instance is deployed, so you always have a recoverable history of what was running on each device.","\u002Fdocs\u002Fuser\u002Fsnapshots\u002F#auto-snapshots",{"edge":464,"hub":464,"fleet":464},{"id":2188,"title":2189,"description":2190,"docsLink":2185,"subfeature":464,"showOnPricing":1979,"tiers":2191},"auto-snapshot-hosted","Auto Snapshot (Hosted)","Automatically capture a snapshot every time a hosted instance is deployed, so you always have a recoverable history of what was running.",{"edge":464,"hub":464,"fleet":464},{"id":2193,"title":2194,"description":2195,"changelog":2196,"subfeature":464,"showOnPricing":1979,"tiers":2199},"snapshot-comparison","Snapshot Comparison","Compare two snapshots side-by-side with a navigable diff view. Step through every changed, added, or deleted node and see property and code diffs.",[2197],{"url":2198,"release":2091},"\u002Fchangelog\u002F2026\u002F04\u002Fsnapshot-diff-viewer\u002F",{"edge":464,"hub":464,"fleet":464},{"id":2201,"title":2202,"subfeature":464,"showOnPricing":1979,"tiers":2203},"version-history-timeline","Version History Timeline",{"edge":464,"hub":464,"fleet":464},{"id":2205,"title":2206,"tiers":2207},"unlimited-workflow-executions","Unlimited Workflow Executions",{"edge":464,"hub":464,"fleet":464},{"id":2209,"title":2210,"description":2211,"tiers":2212},"device-fleet-updates","Device Fleet Updates","Connect to edge devices to quickly assess and update logic. Debug one device and roll out improvements to your fleet in minutes, securely without requiring full device access for your whole organisation.",{"edge":464,"hub":1979,"fleet":464},{"id":2214,"title":2215,"description":2216,"docsLink":2217,"tiers":2218},"device-group-management","Device Group Management","Logically group devices assigned to an application and integrate device groups into your DevOps Pipeline for coordinated fleet updates.","\u002Fdocs\u002Fuser\u002Fdevice-groups\u002F",{"edge":464,"hub":1979,"fleet":464},{"id":2220,"title":2221,"description":2222,"docsLink":2223,"tiers":2224},"high-availability","High Availability","Leverage horizontal scaling for reliable and scalable processing of your data through Node-RED.","\u002Fdocs\u002Fuser\u002Fhigh-availability\u002F",{"edge":1979,"hub":464,"fleet":1979},{"id":2226,"title":2227,"description":2228,"tiers":2229},"performance-monitoring","Performance Monitoring & Alerts","Track CPU, memory, and event loop performance across your instances and devices, with email alerts when something needs your attention.",{"edge":464,"hub":464,"fleet":464},{"id":2231,"title":2232,"description":2233,"docsLink":2234,"subfeature":464,"showOnPricing":1979,"tiers":2235},"instance-monitoring","Instance Monitoring","Enable alerts to be sent via email when your Node-RED instances encounter issues.","\u002Fdocs\u002Fuser\u002Finstance-settings\u002F#alerts",{"edge":464,"hub":464,"fleet":464},{"id":2237,"title":2238,"subfeature":464,"showOnPricing":1979,"tiers":2239},"email-alerts","Email Alerts",{"edge":464,"hub":464,"fleet":464},{"id":2241,"title":2242,"showOnPricing":1979,"tiers":2243},"api-debug-length-limit","API\u002FDebug Length Limit",{"edge":464,"hub":464,"fleet":464},{"id":2245,"title":2246,"tiers":2247},"protected-instances","Protected Instances",{"edge":1979,"hub":464,"fleet":1979},{"id":2249,"title":2250,"features":2251},"govern-secure","Govern and Secure",[2252,2261,2267,2273,2278,2284,2290,2296,2304,2310,2316,2322],{"id":2253,"title":2254,"description":2255,"docsLink":2256,"changelog":2257,"tiers":2260},"single-sign-on","Single Sign-On (SSO)","Configure FlowFuse to work with your own SSO provider, allowing users to access FlowFuse with a single set of login credentials.","\u002Fdocs\u002Fadmin\u002Fsso\u002F",[2258],{"url":2259,"release":2032},"\u002Fchangelog\u002F2026\u002F07\u002Fapplication-sso-groups\u002F",{"edge":464,"hub":464,"fleet":464},{"id":2262,"title":2263,"description":2264,"docsLink":2265,"tiers":2266},"two-factor-authentication","Two-Factor Authentication","Two-factor authentication adds an extra layer of security to your FlowFuse account.","\u002Fdocs\u002Fuser\u002Fuser-settings\u002F#two-factor-authentication",{"edge":464,"hub":464,"fleet":464},{"id":2268,"title":2269,"description":2270,"docsLink":2271,"tiers":2272},"certified-nodes-it","Certified Nodes - IT","IT certified node bundle includes: Redis, MQTT, HTTP Request, AI nodes (Gemini, Claude, ChatGPT, Ollama), MCP Server","\u002Fblog\u002F2025\u002F07\u002Fcertified-nodes-v2\u002F",{"edge":1979,"hub":464,"fleet":464},{"id":2274,"title":2275,"description":2276,"tiers":2277},"certified-nodes-ot","Certified OT Connections - OPC-UA, Modbus, etc.","OT certified node bundle includes: OPC-UA, Modbus TCP & RTU, RTSP, EtherNet\u002FIP, AI nodes (Gemini, Claude, ChatGPT, Ollama), MCP Server",{"edge":464,"hub":1979,"fleet":1979},{"id":2279,"title":2280,"description":2281,"docsLink":2282,"tiers":2283},"audit-log","Audit Log","Keep track of everything going on in your Node-RED instances and FlowFuse. Audit Logs provide details on what actions have taken place, when they happened, and who did them.","\u002Fdocs\u002Fuser\u002Flogs\u002F#audit-log",{"edge":464,"hub":464,"fleet":464},{"id":2285,"title":2286,"description":2287,"docsLink":2288,"tiers":2289},"role-based-access-control","Role-Based Access Control","Control who can do what at both the team and application level, from viewers to admins.","\u002Fdocs\u002Fuser\u002Frole-based-access-control\u002F",{"edge":464,"hub":464,"fleet":464},{"id":2291,"title":2292,"description":2293,"docsLink":2294,"subfeature":464,"showOnPricing":1979,"tiers":2295},"application-level-rbac","Application-Level RBAC","Fine-grained access control per application, allowing team members to have different permission levels across different applications without requiring separate teams.","\u002Fdocs\u002Fuser\u002Frole-based-access-control\u002F#application-level-rbac",{"edge":464,"hub":464,"fleet":464},{"id":2297,"title":2298,"description":2299,"changelog":2300,"subfeature":464,"showOnPricing":1979,"tiers":2303},"scoped-personal-access-tokens","Scoped Personal Access Tokens","Restrict a Personal Access Token to specific teams, limit it to read-only operations, or control whether it carries admin privileges.",[2301],{"url":2302,"release":2032},"\u002Fchangelog\u002F2026\u002F07\u002Fscoped-pats\u002F",{"edge":464,"hub":464,"fleet":464},{"id":2305,"title":2306,"description":2307,"docsLink":2308,"showOnPricing":1979,"tiers":2309},"team-members","Team Members","Invite multiple team members to collaborate on the same Node-RED flows.","\u002Fdocs\u002Fuser\u002Fteam\u002F#teams",{"edge":464,"hub":464,"fleet":464},{"id":2311,"title":2312,"description":2313,"docsLink":2314,"showOnPricing":1979,"tiers":2315},"endpoint-security","Endpoint Security","Secure HTTP endpoints for hosted Node-RED instances using FlowFuse credentials.","\u002Fdocs\u002Fuser\u002Finstance-settings\u002F#security",{"edge":464,"hub":464,"fleet":464},{"id":2317,"title":2318,"description":2319,"docsLink":2320,"tiers":2321},"baa-for-hipaa","BAA for HIPAA","FlowFuse can sign a Business Associate Agreement to ensure proper safeguarding of protected health information handled on your behalf.","\u002Fhandbook\u002Fsales\u002Fsubscription-agreement-1.5\u002F",{"edge":1979,"hub":464,"fleet":1979},{"id":2323,"title":2324,"description":2325,"tiers":2326},"sbom","Software Bill of Materials","A complete list of all software components used in your Node-RED instances and hosted applications, including version numbers and license information.",{"edge":1979,"hub":464,"fleet":1979},{"id":2328,"title":2329,"features":2330},"support","Support",[2331,2336,2340],{"id":2332,"title":2333,"docsLink":2334,"tiers":2335},"installation-support","Installation Support","\u002Fdocs\u002Finstall\u002Fintroduction\u002F#do-you-need-help-installation-service",{"edge":464,"hub":464,"fleet":464},{"id":2337,"title":2338,"showOnPricing":1979,"tiers":2339},"live-chat-support","Live Chat Support",{"edge":464,"hub":464,"fleet":464},{"id":2341,"title":2342,"docsLink":2343,"tiers":2344},"enterprise-support","Enterprise Support","\u002Fdocs\u002Fpremium-support\u002F",{"edge":464,"hub":464,"fleet":464},"feature-catalog","0AnkhTIPCECCwP9NmbTWP5HvRYx4FTSao4lG93-HaWM",[2348,2351,2354,2357,2360,2363,2365,2368,2371,2374,2377,2379,2382,2385,2388,2391,2394,2397,2400,2403,2406,2409,2412,2415,2418,2421,2424,2427,2430,2433,2436,2439,2442,2445,2448,2451,2454,2457,2460,2463,2466,2469,2472,2475,2478,2481,2484,2487,2490,2492,2495,2498,2501,2504,2507,2510,2513,2515,2518,2521,2524,2527,2530,2532,2535,2538,2541,2544,2547,2550,2553,2556,2559,2562,2564,2567,2570,2573,2576,2579,2582,2585,2588,2591,2594,2597,2600,2603,2606,2608,2611,2614,2617,2620,2623,2626,2629,2632,2635,2638,2641,2644,2647,2650,2653,2656,2659,2662,2664,2667,2670,2673,2676,2679,2682,2685,2687,2690,2693,2696,2699,2702,2705,2708,2711,2714,2717,2720,2723,2726,2729,2732,2735,2738,2741,2744,2747,2750,2753,2756,2759,2762,2765,2768,2771,2774,2777,2780,2783,2786,2789,2792,2795,2798,2801,2804,2807,2810,2813,2816,2819,2822,2825,2828,2831,2834,2837,2839,2842,2845,2848,2851,2854,2857,2860,2863,2866,2869,2872,2875,2878],{"path":2349,"title":2350},"\u002Fchangelog\u002F2023\u002F09\u002Fcustom-node-support","Custom Node Support",{"path":2352,"title":2353},"\u002Fchangelog\u002F2023\u002F09\u002Fdevops-actions","DevOps Pipeline with action selection",{"path":2355,"title":2356},"\u002Fchangelog\u002F2023\u002F09\u002Fintroduction-enterprise-tier","Introducing the Enterprise Tier",{"path":2358,"title":2359},"\u002Fchangelog\u002F2023\u002F09\u002Fpipeline-api","API Endpoint for DevOps Pipeline",{"path":2361,"title":2362},"\u002Fchangelog\u002F2023\u002F09\u002Fsnapshots-devices","Usability improvements to Device Management",{"path":2364,"title":2072},"\u002Fchangelog\u002F2023\u002F10\u002Fblueprints",{"path":2366,"title":2367},"\u002Fchangelog\u002F2023\u002F10\u002Fcertified-nodes","Certified Nodes",{"path":2369,"title":2370},"\u002Fchangelog\u002F2023\u002F10\u002Fdevice-snapshot-selection","Enhanced Snapshot Selection",{"path":2372,"title":2373},"\u002Fchangelog\u002F2023\u002F10\u002Fpath-bug-fix","Device Agent path bug fix",{"path":2375,"title":2376},"\u002Fchangelog\u002F2023\u002F10\u002Fresource-alerts","Resource Monitoring in Audit Log",{"path":2378,"title":2263},"\u002Fchangelog\u002F2023\u002F11\u002F2fa",{"path":2380,"title":2381},"\u002Fchangelog\u002F2023\u002F11\u002Fdefault-editor","Device Editor enabled by default",{"path":2383,"title":2384},"\u002Fchangelog\u002F2023\u002F11\u002Fdevices-in-pipelines","Devices in DevOps Pipelines",{"path":2386,"title":2387},"\u002Fchangelog\u002F2023\u002F11\u002Fproject-nodes-devices","Project Nodes for Devices",{"path":2389,"title":2390},"\u002Fchangelog\u002F2023\u002F12\u002Fbilling","No Credit Card required for billing",{"path":2392,"title":2393},"\u002Fchangelog\u002F2023\u002F12\u002Fblueprint-selection","Blueprint Selection Update",{"path":2395,"title":2396},"\u002Fchangelog\u002F2023\u002F12\u002Fdevice-groups","Device Groups",{"path":2398,"title":2399},"\u002Fchangelog\u002F2023\u002F12\u002Femail-alerting-node-red-crash","Email Alerts for Audit Log Events",{"path":2401,"title":2402},"\u002Fchangelog\u002F2023\u002F12\u002Fnode-red-updated","Node-RED 3.1.3 now available",{"path":2404,"title":2405},"\u002Fchangelog\u002F2024\u002F01\u002Fdevice-audit-log","Introducing the Device Auditlog Feature",{"path":2407,"title":2408},"\u002Fchangelog\u002F2024\u002F01\u002Fdevice-groups-snapshot","Device Groups - Automatic snapshot assignment",{"path":2410,"title":2411},"\u002Fchangelog\u002F2024\u002F01\u002Ffleet-mode","Renaming \"Default Device Mode\" to \"Fleet Mode\"",{"path":2413,"title":2414},"\u002Fchangelog\u002F2024\u002F01\u002Fhelm-v2","Helm Chart v2.0",{"path":2416,"title":2417},"\u002Fchangelog\u002F2024\u002F01\u002Fnew-blueprints","New Blueprints added",{"path":2419,"title":2420},"\u002Fchangelog\u002F2024\u002F01\u002Fsecurity-updates","Security Updates",{"path":2422,"title":2423},"\u002Fchangelog\u002F2024\u002F01\u002Fsso-team-membership","Managing Team Membership via SSO",{"path":2425,"title":2426},"\u002Fchangelog\u002F2024\u002F01\u002Fstreamlined-device-assignment","Streamlined Device assignment",{"path":2428,"title":2429},"\u002Fchangelog\u002F2024\u002F02\u002Fdevice-auto-snapshot","Device Auto Snapshots",{"path":2431,"title":2432},"\u002Fchangelog\u002F2024\u002F02\u002Fdevice-instance-audit-logs","Device Instance Audit Logging",{"path":2434,"title":2435},"\u002Fchangelog\u002F2024\u002F02\u002Fdevice-onboarding-improvements","Device Onboarding Improvements",{"path":2437,"title":2438},"\u002Fchangelog\u002F2024\u002F02\u002Fdevice-pricing-change","Pricing change for Devices",{"path":2440,"title":2441},"\u002Fchangelog\u002F2024\u002F02\u002Finstance-auto-snapshots","Instance Auto Snapshots",{"path":2443,"title":2444},"\u002Fchangelog\u002F2024\u002F02\u002Fpostgresql-upgrade","PostgreSQL Version update",{"path":2446,"title":2447},"\u002Fchangelog\u002F2024\u002F03\u002Fbearer-token-authentication","Bearer Token Authentication for Node-RED Instances",{"path":2449,"title":2450},"\u002Fchangelog\u002F2024\u002F03\u002Finstance-protection-mode","Instance Protection Mode",{"path":2452,"title":2453},"\u002Fchangelog\u002F2024\u002F03\u002Flimits-debug-payload","Configure HTTP Payload and Debug Message size",{"path":2455,"title":2456},"\u002Fchangelog\u002F2024\u002F03\u002Frestart-devices-remotly","Remote Device Restart",{"path":2458,"title":2459},"\u002Fchangelog\u002F2024\u002F04\u002Fcustom-nodes-on-devices","Custom Nodes Support on Devices",{"path":2461,"title":2462},"\u002Fchangelog\u002F2024\u002F04\u002Fdevice-auto-snapshot","Direct Dashboard Access",{"path":2464,"title":2465},"\u002Fchangelog\u002F2024\u002F04\u002Fimproving-device-groups","Improving Device Groups",{"path":2467,"title":2468},"\u002Fchangelog\u002F2024\u002F04\u002Fpricing-change","Pricing change Enterprise & Teams Tier",{"path":2470,"title":2471},"\u002Fchangelog\u002F2024\u002F04\u002Ftougher-rate-limiting","Tougher Rate Limiting on Public Routes",{"path":2473,"title":2474},"\u002Fchangelog\u002F2024\u002F05\u002Finstance-healthcheck","Customizing instance health-check settings",{"path":2476,"title":2477},"\u002Fchangelog\u002F2024\u002F05\u002Flibrary-blueprints","Blueprints added to Library",{"path":2479,"title":2480},"\u002Fchangelog\u002F2024\u002F05\u002Flibrary-flowviewer","Team Library - Flow Viewer",{"path":2482,"title":2483},"\u002Fchangelog\u002F2024\u002F05\u002Fmanaging-node-red-version-on-devices","Managing Node-RED versions on Devices",{"path":2485,"title":2486},"\u002Fchangelog\u002F2024\u002F05\u002Fsnapshot-improvements","Snapshot Improvements",{"path":2488,"title":2489},"\u002Fchangelog\u002F2024\u002F05\u002Fsnapshot-improvements-pt3","Snapshot Upload",{"path":2491,"title":2489},"\u002Fchangelog\u002F2024\u002F05\u002Fsnapshot-upload",{"path":2493,"title":2494},"\u002Fchangelog\u002F2024\u002F06\u002Fdevice-agent-proxy-support","Running the Device Agent behind an HTTP proxy",{"path":2496,"title":2497},"\u002Fchangelog\u002F2024\u002F06\u002Flibrary-blueprints","Custom hostnames for your instances",{"path":2499,"title":2500},"\u002Fchangelog\u002F2024\u002F06\u002Fmultiline-env-vars","Multi-line Environment Variables",{"path":2502,"title":2503},"\u002Fchangelog\u002F2024\u002F06\u002Fsnapshot-flow-compare","Compare Snapshots flows",{"path":2505,"title":2506},"\u002Fchangelog\u002F2024\u002F07\u002Fapplications-search","Applications Search",{"path":2508,"title":2509},"\u002Fchangelog\u002F2024\u002F07\u002Fdevice-group-clear-snapshot","Device Groups Snapshots",{"path":2511,"title":2512},"\u002Fchangelog\u002F2024\u002F07\u002Fdevice-management-bulk-delete","Managing devices",{"path":2514,"title":2512},"\u002Fchangelog\u002F2024\u002F07\u002Fdevice-management-bulk-move",{"path":2516,"title":2517},"\u002Fchangelog\u002F2024\u002F07\u002Fedit-snapshots","Edit Snapshots",{"path":2519,"title":2520},"\u002Fchangelog\u002F2024\u002F07\u002Fflowfuse-assistant","The FlowFuse Expert",{"path":2522,"title":2523},"\u002Fchangelog\u002F2024\u002F07\u002Fflowfuse-assistant-json","FlowFuse Expert Writes JSON",{"path":2525,"title":2526},"\u002Fchangelog\u002F2024\u002F07\u002Fimmersive-editor","Immersive Editor Experience",{"path":2528,"title":2529},"\u002Fchangelog\u002F2024\u002F07\u002Fnotifications-inbox","Notifications Inbox",{"path":2531,"title":2529},"\u002Fchangelog\u002F2024\u002F07\u002Fnotifications-update",{"path":2533,"title":2534},"\u002Fchangelog\u002F2024\u002F07\u002Fpersistent-storage","Persistent Storage on FlowFuse Cloud",{"path":2536,"title":2537},"\u002Fchangelog\u002F2024\u002F07\u002Fsso","Single Sign On Updates",{"path":2539,"title":2540},"\u002Fchangelog\u002F2024\u002F08\u002Fbill-of-materials","Bill of Materials",{"path":2542,"title":2543},"\u002Fchangelog\u002F2024\u002F08\u002Fenterprise-license-update","Enforcing Enterprise Restrictions",{"path":2545,"title":2546},"\u002Fchangelog\u002F2024\u002F08\u002Fldap-sso-groups","LDAP Single Sign On Updates",{"path":2548,"title":2549},"\u002Fchangelog\u002F2024\u002F08\u002Fstatic-file-service-navigation-visibility","Static File Service Navigation and Visibility",{"path":2551,"title":2552},"\u002Fchangelog\u002F2024\u002F10\u002Fdevice-group-env-vars","Environment Variables for your Device Groups",{"path":2554,"title":2555},"\u002Fchangelog\u002F2024\u002F10\u002Fmqtt-service","MQTT Broker Service",{"path":2557,"title":2558},"\u002Fchangelog\u002F2024\u002F10\u002Fnotifications-bulk-actions","Managing Notifications",{"path":2560,"title":2561},"\u002Fchangelog\u002F2024\u002F10\u002Fsnapshot-download-upload-options","Snapshot Upload and Download Improvements",{"path":2563,"title":2202},"\u002Fchangelog\u002F2024\u002F10\u002Fversion-history-timeline",{"path":2565,"title":2566},"\u002Fchangelog\u002F2024\u002F11\u002Faudit-log-hierarchy","Audit logs show hierarchical events",{"path":2568,"title":2569},"\u002Fchangelog\u002F2024\u002F11\u002Fdevice-agent-release","Device Agent 3.0 released",{"path":2571,"title":2572},"\u002Fchangelog\u002F2024\u002F11\u002Fmqtt-topic-hierarchy","MQTT Topic Hierarchy view",{"path":2574,"title":2575},"\u002Fchangelog\u002F2024\u002F11\u002Fteam-search","Team-wide search",{"path":2577,"title":2578},"\u002Fchangelog\u002F2024\u002F12\u002Fdashboad-iframe","Allow Dashboards to be embedded in iFrames",{"path":2580,"title":2581},"\u002Fchangelog\u002F2024\u002F12\u002Fdevice-editor-cache","Device Editor Access Speed Up",{"path":2583,"title":2584},"\u002Fchangelog\u002F2024\u002F12\u002Fteam-bom-timeline","Team BOM and Pipeline Views",{"path":2586,"title":2587},"\u002Fchangelog\u002F2025\u002F01\u002Ffree-tier-onboarding","New Onboarding Tour for Free Tier Users",{"path":2589,"title":2590},"\u002Fchangelog\u002F2025\u002F01\u002Fhidden-env-vars","Hidden Environment Variables",{"path":2592,"title":2593},"\u002Fchangelog\u002F2025\u002F01\u002Fimproved-diagnostics","Improved Diagnostics",{"path":2595,"title":2596},"\u002Fchangelog\u002F2025\u002F01\u002Fteam-level-groups","Team level view of Groups",{"path":2598,"title":2599},"\u002Fchangelog\u002F2025\u002F02\u002Fadditional-device-version-history-events","New Remote Instances Version History Events",{"path":2601,"title":2602},"\u002Fchangelog\u002F2025\u002F02\u002Fbroker-error-feedback","Improved Broker Connection Feedback",{"path":2604,"title":2605},"\u002Fchangelog\u002F2025\u002F02\u002Fdevice-agent-updates","FlowFuse User Authentication on Remote Instances",{"path":2607,"title":2202},"\u002Fchangelog\u002F2025\u002F02\u002Fdevice-version-history-timeline",{"path":2609,"title":2610},"\u002Fchangelog\u002F2025\u002F02\u002Fexternal-brokers","External MQTT Brokers",{"path":2612,"title":2613},"\u002Fchangelog\u002F2025\u002F02\u002Fmqtt-schema-suggestions","MQTT Smart Schema Suggestions",{"path":2615,"title":2616},"\u002Fchangelog\u002F2025\u002F02\u002Fresend-and-extend-team-invitation-expiration","Re-send Team Invitations",{"path":2618,"title":2619},"\u002Fchangelog\u002F2025\u002F02\u002Fschema-docs","Personalized Schema Documentation",{"path":2621,"title":2622},"\u002Fchangelog\u002F2025\u002F02\u002Ftopic-hierarchy-search","Search & Filter for Topic Hierarchy List",{"path":2624,"title":2625},"\u002Fchangelog\u002F2025\u002F03\u002Fcontainer-tags","Changes to tags for flowfuse\u002Fnode-red",{"path":2627,"title":2628},"\u002Fchangelog\u002F2025\u002F03\u002Fdevice-groups","Multiple Device Groups in a pipeline",{"path":2630,"title":2631},"\u002Fchangelog\u002F2025\u002F03\u002Fdevice-local-login","Local Login for Remote Instances",{"path":2633,"title":2634},"\u002Fchangelog\u002F2025\u002F03\u002Ffree-tier","Free Tier now more accessible to all",{"path":2636,"title":2637},"\u002Fchangelog\u002F2025\u002F03\u002Fresource-notifications","Resource Alerts",{"path":2639,"title":2640},"\u002Fchangelog\u002F2025\u002F03\u002Fsnapshot-filter","Filtering Snapshots",{"path":2642,"title":2643},"\u002Fchangelog\u002F2025\u002F03\u002Fteam-npm-registry","NPM Package Hosting",{"path":2645,"title":2646},"\u002Fchangelog\u002F2025\u002F03\u002Ftopic-deletion","MQTT Topic Management",{"path":2648,"title":2649},"\u002Fchangelog\u002F2025\u002F04\u002Fdevice-provisioning","Remote Instance Provisioning",{"path":2651,"title":2652},"\u002Fchangelog\u002F2025\u002F04\u002Fgit-integration","Git Integration with Pipelines",{"path":2654,"title":2655},"\u002Fchangelog\u002F2025\u002F04\u002Finstance-log-browsing","Better Node-RED log handling",{"path":2657,"title":2658},"\u002Fchangelog\u002F2025\u002F05\u002Fimport-node-red-flows","Import Node-RED Flows During Remote Instance Setup",{"path":2660,"title":2661},"\u002Fchangelog\u002F2025\u002F06\u002Fflowfuse-assistant","FlowFuse Expert just got smarter",{"path":2663,"title":2661},"\u002Fchangelog\u002F2025\u002F06\u002Fflowfuse-assistant-2",{"path":2665,"title":2666},"\u002Fchangelog\u002F2025\u002F06\u002Fgit-integration","Pulling snapshots from Git with Pipelines",{"path":2668,"title":2669},"\u002Fchangelog\u002F2025\u002F06\u002Finstance-performance-memory","Memory Metrics in Instance Performance View",{"path":2671,"title":2672},"\u002Fchangelog\u002F2025\u002F06\u002Fnew-home-page","Introducing the New Home Page Experience",{"path":2674,"title":2675},"\u002Fchangelog\u002F2025\u002F06\u002Fteam-performance","Team Performance Feature",{"path":2677,"title":2678},"\u002Fchangelog\u002F2025\u002F06\u002Fteam-performance-view","Instance Performance View",{"path":2680,"title":2681},"\u002Fchangelog\u002F2025\u002F06\u002Fui-refresh","Navigation UI Refresh",{"path":2683,"title":2684},"\u002Fchangelog\u002F2025\u002F07\u002Fbrowse-node-red-flows","Browse for Node-RED Flows During Remote Instance Setup",{"path":2686,"title":2026},"\u002Fchangelog\u002F2025\u002F07\u002Fflowfuse-tables",{"path":2688,"title":2689},"\u002Fchangelog\u002F2025\u002F07\u002Fimport-blueprints","Import blueprints directly into your existing instances",{"path":2691,"title":2692},"\u002Fchangelog\u002F2025\u002F07\u002Fsimplified-applications-overview","Simplified Applications Page with Summary Tiles",{"path":2694,"title":2695},"\u002Fchangelog\u002F2025\u002F07\u002Fsmart-suggestions","Smart Suggestions",{"path":2697,"title":2698},"\u002Fchangelog\u002F2025\u002F07\u002Fteam-to-pro-plan-rename","Team Plan Renamed to Pro Plan",{"path":2700,"title":2701},"\u002Fchangelog\u002F2025\u002F08\u002Fai-generated-snapshot-descriptions-hosted","Generate snapshot descriptions with AI",{"path":2703,"title":2704},"\u002Fchangelog\u002F2025\u002F08\u002Fai-generated-snapshot-descriptions-remote","AI Snapshot Descriptions Now Work with Remote Instances",{"path":2706,"title":2707},"\u002Fchangelog\u002F2025\u002F08\u002Fdevice-performance","FlowFuse Remote Instance Performance Data",{"path":2709,"title":2710},"\u002Fchangelog\u002F2025\u002F08\u002Fdirect-sso","Direct SSO Login",{"path":2712,"title":2713},"\u002Fchangelog\u002F2025\u002F08\u002Fflowfuse-assistant","FlowFuse Expert documents your flows",{"path":2715,"title":2716},"\u002Fchangelog\u002F2025\u002F08\u002Fflowfuse-mqtt","FlowFuse MQTT",{"path":2718,"title":2719},"\u002Fchangelog\u002F2025\u002F08\u002Fhttp-cors","Configure HTTP CORS",{"path":2721,"title":2722},"\u002Fchangelog\u002F2025\u002F08\u002Fsubflow-export","Export SubFlow as Node-RED module",{"path":2724,"title":2725},"\u002Fchangelog\u002F2025\u002F08\u002Ftables-assistant","FlowFuse Tables with a little help from the Assistant",{"path":2727,"title":2728},"\u002Fchangelog\u002F2025\u002F09\u002Fexpose-saml-groups-to-dashboard","Allow SSO groups to be shared with the Node-RED Dashboard",{"path":2730,"title":2731},"\u002Fchangelog\u002F2025\u002F09\u002Finline-assist","FlowFuse Expert can help you write code",{"path":2733,"title":2734},"\u002Fchangelog\u002F2025\u002F09\u002Fretiring-flowforge-device-agent","No more @flowforge\u002Fflowforge-device-agent releases",{"path":2736,"title":2737},"\u002Fchangelog\u002F2025\u002F09\u002Frevised-instance-snapshot-ui","Streamlined Snapshot Management",{"path":2739,"title":2740},"\u002Fchangelog\u002F2025\u002F09\u002Fteam-broker-async-api","Capture Async API data from FlowFuse Team Broker",{"path":2742,"title":2743},"\u002Fchangelog\u002F2025\u002F10\u002Fapplication-level-rbac","Application-level access control for Enterprise teams",{"path":2745,"title":2746},"\u002Fchangelog\u002F2025\u002F10\u002Fbulk-device-group-assignment","Easier Access to Bulk Device Group Management",{"path":2748,"title":2749},"\u002Fchangelog\u002F2025\u002F10\u002Fduplicate-instances-across-applications","Duplicate Instances Across Different Applications",{"path":2751,"title":2752},"\u002Fchangelog\u002F2025\u002F10\u002Fimport-flows-on-instance-creation","Import flows during instance creation",{"path":2754,"title":2755},"\u002Fchangelog\u002F2025\u002F10\u002Fmcp-nodes","FlowFuse MCP Server Nodes",{"path":2757,"title":2758},"\u002Fchangelog\u002F2025\u002F10\u002Fonnx-nodes","FlowFuse AI Nodes",{"path":2760,"title":2761},"\u002Fchangelog\u002F2025\u002F10\u002Fsettings-page-device-group-management","Device Group Management from Settings Page",{"path":2763,"title":2764},"\u002Fchangelog\u002F2025\u002F11\u002Fff-expert-update","FlowFuse Expert Update",{"path":2766,"title":2767},"\u002Fchangelog\u002F2025\u002F11\u002Fminimum-nodejs-version","Node.js v20 Minimum Version Requirement",{"path":2769,"title":2770},"\u002Fchangelog\u002F2025\u002F11\u002Fsso-session","SSO control over Session life",{"path":2772,"title":2773},"\u002Fchangelog\u002F2025\u002F12\u002Fff-expert-mcp-insights","FlowFuse Expert: Now with MCP-Powered Insights",{"path":2775,"title":2776},"\u002Fchangelog\u002F2025\u002F12\u002Fscheduled-maintenance","Scheduled Maintenance Mode",{"path":2778,"title":2779},"\u002Fchangelog\u002F2026\u002F01\u002Fdevice-agent-containers","Device Agent Docker Containers updated",{"path":2781,"title":2782},"\u002Fchangelog\u002F2026\u002F01\u002Fff-expert-manage-palette","FlowFuse Expert: Enhanced Palette Integration",{"path":2784,"title":2785},"\u002Fchangelog\u002F2026\u002F01\u002Fff-expert-nr-actions","FlowFuse Expert: Integration with Node-RED",{"path":2787,"title":2788},"\u002Fchangelog\u002F2026\u002F01\u002Fff-expert-palette-queries","FlowFuse Expert: Palette Queries",{"path":2790,"title":2791},"\u002Fchangelog\u002F2026\u002F01\u002Fff-expert-select-flows","FlowFuse Expert: Ask about your flows",{"path":2793,"title":2794},"\u002Fchangelog\u002F2026\u002F01\u002Fmcp-rbacs","FlowFuse Expert: MCP-Powered Insights with RBACs",{"path":2796,"title":2797},"\u002Fchangelog\u002F2026\u002F01\u002Fmcp-security","FlowFuse Expert: MCP-Powered Insights",{"path":2799,"title":2800},"\u002Fchangelog\u002F2026\u002F02\u002Fdevice-agent-nodejs-options","Set Node.js Options for Remote Instances",{"path":2802,"title":2803},"\u002Fchangelog\u002F2026\u002F02\u002Fff-expert-debug-log-context","FlowFuse Expert: Helping you make sense of your debug log",{"path":2805,"title":2806},"\u002Fchangelog\u002F2026\u002F02\u002Fff-expert-update-banner","FlowFuse Expert: Never Miss an Update",{"path":2808,"title":2809},"\u002Fchangelog\u002F2026\u002F02\u002Fha-instance-rolling-restart","HA Hosted Instance Rolling Restart",{"path":2811,"title":2812},"\u002Fchangelog\u002F2026\u002F02\u002Fremote-instances-immersive-editor","Immersive Mode for Remote Instances",{"path":2814,"title":2815},"\u002Fchangelog\u002F2026\u002F02\u002Frestoring-snapshots-to-remote-instances","Restoring snapshots to developer-mode Remote Instances",{"path":2817,"title":2818},"\u002Fchangelog\u002F2026\u002F03\u002Fazure-dev-ops-gitops","Azure DevOps Pipeline support",{"path":2820,"title":2821},"\u002Fchangelog\u002F2026\u002F03\u002Fdeveloper-mode-in-immersive-editor","Developer Mode Now Accessible from the Immersive Editor",{"path":2823,"title":2824},"\u002Fchangelog\u002F2026\u002F03\u002Fembedded-editor-tab-title","Embedded Editor Now Shows Active Tab",{"path":2826,"title":2827},"\u002Fchangelog\u002F2026\u002F03\u002Fmarch-scheduled-maintenance","Updated: Upcoming Scheduled Server Maintenance on March 28th, 2026",{"path":2829,"title":2830},"\u002Fchangelog\u002F2026\u002F03\u002Fsnapshot-detail-modal-immersive-editor","View Snapshot Details in the Immersive Editor",{"path":2832,"title":2833},"\u002Fchangelog\u002F2026\u002F04\u002Fexpert-action-links","FlowFuse expert action links",{"path":2835,"title":2836},"\u002Fchangelog\u002F2026\u002F04\u002Fhosted-instance-url-env-var","Hosted Instances know their own URL",{"path":2838,"title":2095},"\u002Fchangelog\u002F2026\u002F04\u002Fimmersive-editor-drawer",{"path":2840,"title":2841},"\u002Fchangelog\u002F2026\u002F04\u002Fsnapshot-diff-viewer","Richer snapshot comparison view",{"path":2843,"title":2844},"\u002Fchangelog\u002F2026\u002F05\u002Fai-opt-out","AI Feature Opt-Out for Teams",{"path":2846,"title":2847},"\u002Fchangelog\u002F2026\u002F05\u002Fexpert-application-building","FlowFuse Expert Builds Your Application",{"path":2849,"title":2850},"\u002Fchangelog\u002F2026\u002F05\u002Fsingle-sso-provider","Single SSO provider for all users",{"path":2852,"title":2853},"\u002Fchangelog\u002F2026\u002F06\u002Fdark-mode","Dark Mode",{"path":2855,"title":2856},"\u002Fchangelog\u002F2026\u002F06\u002Fdevice-agent-v4-released","Device Agent v4 released",{"path":2858,"title":2859},"\u002Fchangelog\u002F2026\u002F06\u002Fgeneric-git-server-support","Connect Pipelines to Any Git Server",{"path":2861,"title":2862},"\u002Fchangelog\u002F2026\u002F06\u002Fjuly-scheduled-maintenance","Updated: Upcoming Scheduled Server Maintenance on July 11th, 2026",{"path":2864,"title":2865},"\u002Fchangelog\u002F2026\u002F07\u002Fapplication-sso-groups","Application Roles from SSO Groups",{"path":2867,"title":2868},"\u002Fchangelog\u002F2026\u002F07\u002Fdevice-agent-onboarding","Getting started with FlowFuse straight from the terminal",{"path":2870,"title":2871},"\u002Fchangelog\u002F2026\u002F07\u002Fexpert-enhancements","FlowFuse Expert Enhancements",{"path":2873,"title":2874},"\u002Fchangelog\u002F2026\u002F07\u002Fexpert-tables-automation","FlowFuse Expert Can Now Work With Your Tables",{"path":2876,"title":2877},"\u002Fchangelog\u002F2026\u002F07\u002Fscoped-pats","Team Scoped Personal Access Tokens",{"path":2879,"title":2880},"\u002Fchangelog\u002F2026\u002F07\u002Fteam-and-application-dashboards","A Dedicated Home for Your Dashboards",[],1786105879754]