Remote communications problem with SOFREL s500 equipped with GPRS upgraded from GSM
In order for a GSM modem connected via USB to a PC to communicate with a device using a GPRS/GSM modem, you need to know the DATA number that would have been provided by the installer.
If the PLC is a SOFREL S550, for example, it is very easy: just enter the DATA number in the local station’ characteristics in Softools.
If the connections to PLCs with GPRS modems are standard, the most efficient setup is to have a 3G card enabled on the PC within the same network used by the PLC. (VPN or other)
Answered by Denis Magnin posted by the moderator