Last modified:
Compact Weather Stations
WSxxx-UMB (Modbus RTU)
Valid for: WS200-UMB, WS300-UMB, WS310-UMB, WS301-UMB, WS302-UMB, WS303-UMB, WS304-UMB, WS400-UMB, WS401-UMB, WS500-UMB, WS510-UMB, WS501-UMB, WS502-UMB, WS503-UMB, WS504-UMB, WS600-UMB, WS601-UMB, WS700-UMB, WS800-UMB
-
Check the respective sensor documentation to find out what power the 24 V DC power supply needs: this may vary depending on the sensor model.
-
Set the bus address on the compact weather station (see compact weather station 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).
|
Description |
|
|---|---|
|
1 |
Data logger terminal, RS485 |
|
2 |
Terminating resistor |
|
3 |
Compact weather station |
Connection
|
Wire color |
Use |
|---|---|
|
|
RS485 bus wire B (−) |
|
|
RS485 bus wire A (+) |
|
|
Power supply sensor (24 V DC +) |
|
|
GND sensor (−) |
|
|
Power supply heating (24 V DC +) |
|
|
GND heating (−) |
|
|
External sensor connector a |
|
|
External sensor connector b |
Item numbers
|
Sensor |
Item nos. |
|---|---|
|
Compact weather stations |
200.275, 423.306, 200.270, 200.266, 200.795, 423.307, 200.799, 423.312, 423.313, 200.793, 200.260, 200.810, 200.801 |
Download PDF
blue'Log XM_XC_Connect weather stations_LastMod-2026-08-11_en.pdf