OPC-UA Service Folders Example
An example showing OPC-UA service folders.
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msg;","outputs":1,"noerr":0,"x":510,"y":580,"wires":[["ab08549b.86da7"]]},{"id":"930e2e83.1cccd","type":"inject","z":"b4792f36.7b37e","name":"LimitAlarm","props":[{"p":"payload","v":"{\"opcuaCommand\":\"installLimitAlarm\"}","vt":"json"},{"p":"topic","v":"ns=1;s=TestAddVariable1;datatype=Float","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"ns=1;s=TestAddVariable1;datatype=Float","payload":"{\"opcuaCommand\":\"installLimitAlarm\"}","payloadType":"json","x":280,"y":620,"wires":[["7a2ebbea.8ca284"]]},{"id":"7a2ebbea.8ca284","type":"function","z":"b4792f36.7b37e","name":"Limit parameters","func":"// Limits\nmsg.hh = 10.0;\nmsg.h = 9.0;\nmsg.l = 1.0;\nmsg.ll = 0.1;\nmsg.priority=500;\nmsg.alarmText=\"Node-red limit alarm\";\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":510,"y":620,"wires":[["ab08549b.86da7"]]},{"id":"598af9d9.76baf8","type":"OpcUa-Client","z":"b4792f36.7b37e","endpoint":"0c7cfe180c3dd028","action":"history","deadbandtype":"a","deadbandvalue":1,"time":10,"timeUnit":"s","certificate":"n","localfile":"","localkeyfile":"","securitymode":"None","securitypolicy":"None","folderName4PKI":"","useTransport":false,"maxChunkCount":"","maxMessageSize":"","receiveBufferSize":"","sendBufferSize":"","name":"Client for LocalServer","x":1480,"y":340,"wires":[["d0171bdc.65e588"]]},{"id":"fee43798.36af38","type":"inject","z":"b4792f36.7b37e","name":"Read history values","repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"str","x":830,"y":340,"wires":[["7357a90f.2086b8"]]},{"id":"7357a90f.2086b8","type":"function","z":"b4792f36.7b37e","name":"Read history parameters","func":"msg.topic=\"ns=1;s=TestTrend\";\nmsg.aggregate=\"raw\";\nmsg.end = Date.now() + (2 * 60 * 60); // GMT + 2h\nmsg.start = 1638132240000; // msg.end - (6 * 60 * 60); // 10 min\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1110,"y":340,"wires":[["598af9d9.76baf8"]]},{"id":"d0171bdc.65e588","type":"debug","z":"b4792f36.7b37e","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":1710,"y":340,"wires":[]},{"id":"555a9045.67e46","type":"inject","z":"b4792f36.7b37e","name":"Read history min","repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"str","x":820,"y":400,"wires":[["e2e73b4f.e06f58"]]},{"id":"e2e73b4f.e06f58","type":"function","z":"b4792f36.7b37e","name":"Read history parameters","func":"msg.topic=\"ns=1;s=TestTrend\";\nmsg.aggregate=\"min\";\nmsg.end = Date.now() + (2 * 60 * 60); // GMT + 2h\nmsg.start = 1638132240000; // msg.end - (6 * 60 * 60); // 10 min\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1110,"y":400,"wires":[["598af9d9.76baf8"]]},{"id":"7f190d30.3d7dc4","type":"inject","z":"b4792f36.7b37e","name":"Read history max","repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"str","x":820,"y":460,"wires":[["857853f.6226cb"]]},{"id":"857853f.6226cb","type":"function","z":"b4792f36.7b37e","name":"Read history parameters","func":"msg.topic=\"ns=1;s=TestTrend\";\nmsg.aggregate=\"max\";\nmsg.end = Date.now() + (2 * 60 * 60); // GMT + 2h\nmsg.start = 1638132240000; // msg.end - (6 * 60 * 60); // 10 min\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1110,"y":460,"wires":[["598af9d9.76baf8"]]},{"id":"2d708cc4.543dd4","type":"inject","z":"b4792f36.7b37e","name":"Read history ave","repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"str","x":820,"y":520,"wires":[["cc1bd491.ccf018"]]},{"id":"cc1bd491.ccf018","type":"function","z":"b4792f36.7b37e","name":"Read history parameters","func":"msg.topic=\"ns=1;s=TestTrend\";\nmsg.aggregate=\"ave\";\nmsg.end = Date.now() + (2 * 60 * 60); // GMT + 2h\nmsg.start = 1638132240000; // msg.end - (6 * 60 * 60); // 10 min\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1110,"y":520,"wires":[["598af9d9.76baf8"]]},{"id":"96a96e74.72ec","type":"inject","z":"b4792f36.7b37e","name":"Read history interpolative","repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"str","x":850,"y":580,"wires":[["ca022f7a.76cdf"]]},{"id":"ca022f7a.76cdf","type":"function","z":"b4792f36.7b37e","name":"Read history parameters","func":"msg.topic=\"ns=1;s=TestTrend\";\nmsg.aggregate=\"interpolative\";\nmsg.end = Date.now() + (2 * 60 * 60); // GMT + 2h\nmsg.start = 1638132240000; // msg.end - (6 * 60 * 60); // 10 min\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1110,"y":580,"wires":[["598af9d9.76baf8"]]},{"id":"3369c6e5.64934a","type":"function","z":"b4792f36.7b37e","name":"Read history 1h to now","func":"msg.topic=\"ns=1;s=TestTrend\";\nmsg.aggregate=\"raw\";\n// Default end time is now\n// Default start time is now - 1h\nmsg.numValuesPerNode = 10;\nmsg.returnBounds = false;\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1100,"y":300,"wires":[["598af9d9.76baf8"]]},{"id":"8f29731c.4dc8a","type":"inject","z":"b4792f36.7b37e","name":"Read history 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out","z":"b4792f36.7b37e","name":"SERVER","mode":"link","links":["9980f42b9d5f6da3"],"x":815,"y":700,"wires":[]},{"id":"9980f42b9d5f6da3","type":"link in","z":"b4792f36.7b37e","name":"SERVER","links":["cb8006ec5ef10910"],"x":595,"y":20,"wires":[["ab08549b.86da7"]]},{"id":"6446e30ac5237b82","type":"inject","z":"b4792f36.7b37e","name":"AddFolder","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"ns=1;s=Observer","payload":"{\"opcuaCommand\":\"addFolder\"}","payloadType":"json","x":180,"y":740,"wires":[["1141a26ab5c68eeb"]]},{"id":"4f663e4d768f8ccd","type":"comment","z":"b4792f36.7b37e","name":"Under TestVariable1","info":"Look Limit and State variables\nUaExpert Events drag and drop server\n\nAlso alarm objects are there\nExplore HighLimit\nChange LimitState over HighLimit\nYou will see Alarm and Event message on event view\n\nChange AlarmState to true","x":280,"y":540,"wires":[]},{"id":"270d4e73c8fa5866","type":"inject","z":"b4792f36.7b37e","name":"SetFolder","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"ns=1;s=TestAddFolder","payload":"{\"opcuaCommand\":\"setFolder\"}","payloadType":"json","x":180,"y":700,"wires":[["cb8006ec5ef10910"]]},{"id":"4f10447ab151e8e1","type":"inject","z":"b4792f36.7b37e","name":"List 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