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Modbus Invalid CRC error
#1
Hello all,

I'm controlling my pool controller by Modbus RTU. Between the Wiser for KNX (Logic Machine) and the pool controller the wiring is about 20 meters. It's a 3 wire connection on both sides and also i'm using terminator resistors 120 Ohm on both sides. I also replaced the cable already but is still keep this Invalid CRC errors.

No my question is if it's allowed to connect the GND to the earth from my installation to see if this might solve the problem or are there any other options left? I already tried swapping the AC wiring as i wrote in another thread but also without luck.

Hope someone can help me out.
Thanks in advance!

Joep
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Messages In This Thread
Modbus Invalid CRC error - by Joep - 25.04.2023, 16:53
RE: Modbus Invalid CRC error - by khalil - 26.04.2023, 07:15
RE: Modbus Invalid CRC error - by Joep - 26.04.2023, 07:53
RE: Modbus Invalid CRC error - by Joep - 15.05.2023, 16:43
RE: Modbus Invalid CRC error - by admin - 16.05.2023, 07:11
RE: Modbus Invalid CRC error - by Joep - 16.05.2023, 09:45

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