.png){kind=logo}
meteocontrol String monitoring units SMU series
Last modified:
Valid for:
SMU 0825
SMU 1225
SMU 1625
SMU 2422 (Modbus RTU)
Set the bus address and make the serial RS485 settings on the String Monitoring Units (see String Monitoring Unit documentation).
If the device is the last one on the RS485 bus, terminate the bus with a 120 Ω terminating resistor.
Various Modbus devices can only be queried together if the serial communication parameters are identical (baud rate, number of data bits, parity, stop bits).
SMU series: String monitoring connection
Description | |
|---|---|
| 1 | Data logger terminal, RS485 |
| 2 | First and subsequent String Monitoring Unit |
| 3 | Last String Monitoring Unit |
| 4 | Terminating resistor |