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How to configure the "RTU2" port for RS485

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How to configure the "RTU2" port for RS485
Oleg Offline
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Posts: 11
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Joined: Feb 2020
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#3
01.05.2020, 09:24
(30.04.2020, 04:20)admin Wrote: /dev/RS485-2 is correct. Make sure that you don't have any other script/plugin using this port. Keep in mind that RS232 is shared with RS485-2 so it cannot be used simultaneously.
Thank you, working!

Oh Undecided , I noticed that if you enabling RTU2 for Modbus over RS485 my TCP/IP devices (also modbus) lost communication. Do you have any idea why this is happening?

My configuration:
TCP/IP: 2 devices (Modbus TCP/IP, port 502)
RTU1:    8 devices (Modbus RTU, 9600bps)
RTU2:    1 device   (Modbus RTU, 115200bps)

PS: TCP/IP + RTU1 working fine.
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RE: How to configure the "RTU2" port for RS485 - by Oleg - 01.05.2020, 09:24

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