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Touchberry 10.1 - RS485 device

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Peter Babič
RS485Touchberry

The question has been closed for reason: not relevant or out dated

by
Ricard Franch Argullol
on 03/07/2023 05:19:38

Hello,

where can we find any documentation about the RS485 for Touchberry 10.1 with RTC+UPS+RS485 model?


It has the M8 connector, the middle of the three pins is connected to the supply ground, so I assumed that other two pins are A and B for RS485.

But no matter what I tried, I could not get any modbus RTU device to do anything.


List of devices I tried:

/dev/tty

/dev/tty0

/dev/tty1

/dev/ttyS0

/dev/ttyAMA0

/dev/ttyprintk

I have also tried to swap the A and B.


The exact same modbus RTU command works on other devices with the USB-to-RS485 dongle.


Please help.

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