Im having the same problem. My code is ok, but when i try to configure the modem, it alls goes wrong. In the manual says to click on PC-Side modem, but says to me "Network Registration Failed." I simply don't know what to do anymore.
Version 850 > Project examples > Communications > SMS Version 850 > Project examples > Communications > GPRS
You can use some example of above. Maybe you have to change the model of modem in COM INIT. For example the exaple named V120_SMS_Sub_Stations.vlp is done for Siemens TC35, just change the model to TC65 and play with it.
First of all I recommend go to Connection - Modem Services and:
1.- Connect the modem to PC 2.- Initialice PC-side modem 3.- Put a phone number in Number to dial 4.- Test the modem with SMS Options
If all work well you will prepare PLC-side modem
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