This article details a Modbus TCP scenario with 2 temperatures sensors connected using Modbus TCP via a controller.
The global architecture is :
The 2 temperature sensors store their information in register 500.
The Modbus driver configuration would be:
{ "modbusDevices": [ { "name": "DEMO", "serial": false, "host": "192.168.0.1", "port": 1234, "endianess": "little_endian", "responseTimeout": 5000, "pollingFrequency": 1000, "deviceRegisters": [ { "thingName": "Temperature sensor 1", "name": "Temperature 1", "slaveId": 1, "registerAddress": 500, "readable": true, "writable": false, "format" : "integer", "length": 3 }, { "thingName": "Temperature sensor 2", "name": "Temperature 2", "slaveId": 2, "registerAddress": 500, "readable": true, "writable": false, "format" : "integer", "length": 3 } ] } ]}
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