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Modbus-RTU-4ch-Relay-12v #7

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cofhal opened this issue Jun 3, 2024 · 2 comments

cofhal commented Jun 3, 2024

I have been trying to use this program with this card:
https://mikroelectron.com/Product/Modbus-RTU-4ch-Relay-12v-RS485-Module-4-Input-Optocoupler-Isolation/
but it does not work. What could I be doing wrong or if it definitely doesn't work for this type of cards.

Owner

sanny32 commented Jun 3, 2024

Hello @cofhal. For answer to you need more information.

Connection scheme and modbus params.
Operation system where execute OpenModSim.
Serial port log received from any serial port sniffer program.

talenat-st commented Nov 3, 2024

@cofhal you can not use modbus slave simulator for that kind of card.You need modbus master so look at this programm https://github.com/sanny32/OpenModScan

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