modbus-notmodbus

Protocol translation from Modbus to MQTT/AMQP/HTTP for Azure IoT Hub

• MIT license
• .NET Core 2.1+
• Uses ModbusTcp library from Aviad Mizrachi
• Easy configuration through appsettings.json

Configuration

Configuration is read from appsettings.json at runtime. All values should be decimal, not hex.

Expected output

[DEBUG] Setting new pollingInterval: 66 seconds
[DEBUG] Serialized telemetry object:
{
  "iotHubDeviceId": "ModbusCollector",
  "voltage": [
    780,
    780
  ],
  "current": [
    780,
    780
  ]
}
[DEBUG] Sending message to Azure IoT Hub...
[DEBUG] Sent was successful at 7/16/2018 6:28:04 AM

Sleeping for 66 seconds /

Polling interval can be controlled either through appsettings.json or Device Twin —

Modbus simulator (Windows only):

• http://www.plcsimulator.org/downloads (MSI Windows Installer)
• Install the Vista Reg key from that link as well
• Click on the Scott Gu lookalike (red shirt) icon and click Walk to get random values away from zero