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Si-RS485TC-T-MB, Si-RS485TC-2T-MB, Si-RS485TC-T-TM-MB (Modbus RTU)
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Set the bus address on the sensor (see sensor 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).
Si-RS485TC-T-MB, Si-RS485TC-2T-MB, Si-RS485TC-T-TM-MB (Modbus RTU): Sensor connection
Description | |
|---|---|
| 1 | Data logger terminal, RS485 |
| 2 | Data logger terminal, Power Out |
| 3 | Irradiance sensor |
| 4 | Terminating resistor |
Connection
Wire color | Use |
|---|---|
Black | Ground |
Red | Power supply (12 … 28 V DC) |
Brown | RS485 Modbus interface A (+) |
Orange | RS485 Modbus interface B (-) |