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I am trying to set up a connection with a webserver over GPRS. I have a DNSserver set up to connect the PC and Unilogic PLC, but can not reach the PLC. Over ethernetconnection it works perfect.

Any suggestion? I can send emails and the enfora modem receive GPRS IP

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If you just enter the IP of the PLC, does it work?

Can you ping the IP?, And you ping the Domain Name? (you are using a DNS Server, so I'm guessing your PLC has a static IP and a domain name attached to it)

Does VNC connection to the PLC works over GPRS?

 

Sending an email makes the PLC open a connection from the PLC to a Mail Server, while connecting to a web server on the PLC requires connections to the PLC.

 

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