Connect a PHP application to an OPC UA server (industrial automation protocol) using php-opcua/opcua-client v4.5.0 — read, write, browse, call methods, subscribe to data changes, query history, manage trust, and extend with custom modules. Use this skill whenever a task involves OPC UA, opc.tcp://, opc.https://, PLC /…
Building edition of iaiops — facility / HVAC / BMS / 厂务 over BACnet/IP (ASHRAE 135): Who-Is discovery, object/point lists, presentValue snapshots, COV capture, TrendLog reads, one MOC-gated property write; plus Modbus-TCP/RTU for meters/chillers and optional plain MQTT for IoT sensors, with the cross-protocol brain.…