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Last modified:
Valid for:
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SMU 0825
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SMU 1225
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SMU 1625
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SMU 2422 (Modbus RTU)
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Set the bus address and make the serial RS485 settings on the String Monitoring Units (see String Monitoring Unit 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).
|
Description |
|
|---|---|
|
1 |
Data logger terminal, RS485 |
|
2 |
First and subsequent String Monitoring Unit |
|
3 |
Last String Monitoring Unit |
|
4 |
Terminating resistor |