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by Mullie007
Fri Nov 07, 2014 6:50 pm
Forum: PLCBUS Forum
Topic: PLC with Modbus --> port forwarding
Replies: 0
Views: 30542

PLC with Modbus --> port forwarding

Hello, I have a AB Micro 850 PLC in my house with Modbus at port 502. I use Iridium Mobile for Visualisation on an Ipad. When i'm in the house (WIFI)it's no problem to communicate with my PLC. But with 3G/4G i can't connect, because the PLC communicate trough modbus/TCP with port 502. My ISP won't l...

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