PLC with Modbus --> port forwarding

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PLC with Modbus --> port forwarding

Postby Mullie007 » Fri Nov 07, 2014 5:50 pm

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 let me portforward under port 1024. I think i can't change the modes port at the PLC trough a higher number.
My ISP= Telenet (Belgium)
Anyone with the same problem and a fix?

Thank u very much
Mullie007
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