DMC utilized the Siemens Simatic S7-1200 PLC and Siemens Sinaut MD720 GPRS GSM cellular modem. The system is able to send data from the PLC (through the cellular network) to the Siemens Sinaut Micro SC OPC server, and view the data on multiple OPC clients such as a WinCC Flexible HMI. The system is also able to send data back to the PLC using the same connection. This permits operator control of remote systems via a cellular network which can save significant amounts of time and money for certain systems that are not easily accessible.
Sinaut Micro SC OPC Test Setup Screen
WinCC Flex Data from Sinaut OPC
Learn more about DMC's Siemens S7 PLC programming expertise.