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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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Pyranometers can be used to measure irradiance either in horizontal or module plane.
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Description |
|
|---|---|
|
1 |
Data logger terminal, RS485 |
|
2 |
Data logger terminal, Power Out |
|
3 |
Pyranometer |
|
4 |
Terminating resistor |
Connection
|
Wire color |
Use |
|---|---|
|
|
GND |
|
|
Power supply (5 … 30 V DC) |
|
|
Irradiance signal GND |
|
|
Irradiance signal (4 … 20 mA) |
|
|
RS485 Modbus interface A (−) |
|
|
RS485 Modbus interface B (+) |
|
|
RS485 Modbus interface GND |
|
|
Not used |
Item numbers
|
Sensor |
Item nos. |
|---|---|
|
SMP3 |
200.203 |
|
SMP10 |
423.034 |
|
SMP10X |
423.080, 423.081 |
|
SMP12 |
200.299, 200.287 |
Download PDF
blue'Log XM_XC_Kipp & Zonen SMP3, SMP10, SMP10X, SMP12 (Modbus RTU)_LastMod-2026-08-17_en.pdf