Wiren Board WB-M1W2 v.3

This Enapter Device Blueprint integrates the Wiren Board WB-M1W2 v.3 Temperature Measurement Module — a compact device with a Modbus (RS-485) interface and inputs for connecting DS18B20 temperature sensors via 1-Wire.

The blueprint works with Modbus registers for WB-M1W2 v.3 firmware version 4.6.0 or higher.

Connect to Enapter

• Sign in to your Energy Management System using the web or mobile app (iOS, Android).
• Configure your RS-485 hardware device. Go to Device Settings → Hardware Ports and set:
  • Baud rate: 9600 b/s
  • Data bits: 8
  • Stop bits: 2
  • Parity: None
• Create a Lua device with this blueprint on a runtime device that supports the Modbus Lua API.
• Go to the created Lua device Device Settings → Connection Configuration and set the following parameters:
  • Modbus Connection URI — defines how to connect to WB-M1W2 v.3 for Modbus communication.
  • Modbus Unit ID — printed on the back of the WB-M1W2 v.3.
  • Modbus Timeout — time after which Modbus commands fail and a connection alert is raised (default: 500 ms).
  • 1-Wire Bus Input — select which of the two 1-Wire inputs to use for data reading.

References

• Wiren Board WB-M1W2 v.3 Temperature Measurement Module.