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Found 1 result

  1. rantingmoon

    Modbus Tcp Port 502 Won't Connect

    rantingmoon posted a topic in Modbus

    Can someone please help me? I've set up my modbus devices and they are just either connecting or disconnecting. I checked port 502 and find out that it's not open, so assuming that it's because of that. So I tried opening port 502, allowing it on the firewall both inbound and outbound rules, but when i check for the listening port it still not there. I also tried to port forward it on the router but still doesn't work. It's frustrating :| Is there any other way I can open this port? Please help! Thank you so much!