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Set the bus address on the sensor (see sensor documentation).
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If the device is the last one on the RS485 bus, terminate the bus with a 120 Ω terminating resistor.
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Various Modbus devices can only be queried together if the serial communication parameters are identical (baud rate, number of data bits, parity, stop bits).
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Description |
|
|---|---|
|
1 |
Data logger terminal, RS485 |
|
2 |
Data logger terminal, Power Out |
|
3 |
Irradiance sensor |
|
4 |
Terminating resistor |
Connection
|
Wire color |
Use |
|---|---|
|
|
Ground |
|
|
Power supply (12 … 28 V DC) |
|
|
RS485 Modbus interface A (+) |
|
|
RS485 Modbus interface B (−) |
Item numbers
|
Sensor |
Item nos. |
|---|---|
|
Si-RS485TC-T-MB |
423.051 |
|
Si-RS485TC-2T-MB |
423.052 |
|
Si-RS485TC-T-TM-MB |
423.036 |
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