teckhno2002
Member
I have an application developed with Cimplicity Machine Edition 5.0. This application must exchange data with PLC Versa Max. Distance between PLC and my application is 15 km. Because of this I must use two GSM modems (Westermo GDW-11).
My problem is: the modem has one port (RS 232). I want to write “AT “ commands from my application to modem, but the port RS 232 is used of by the communication drive (Modbus RTU), so I can’t stop and restore connection between modems.
My problem is: the modem has one port (RS 232). I want to write “AT “ commands from my application to modem, but the port RS 232 is used of by the communication drive (Modbus RTU), so I can’t stop and restore connection between modems.