I don't think there is any third party DDE/OPC Server available for Messung PLC. We faced the same problem and have to create a driver for the next gen PLC. The driver works with Indusoft Web studio SCADA Software.
You can call on me on [email protected] if you need any additional information.
Dear Ashish,
Messung PLC protocols are not open for public. However, should the case being genuine, you can request the same via the Messung offices or via the sales channels.
Many leading SCADA manufacturers have written the communication drivers for Messung PLCs themselves.
In Nexgen series, Messung has recently introduced Nexgen5000 CPUs where-in they have support for Modbus-RTU protocol (Master as well as slave). In such case any third party Modbus DDE/OPC server can help you.
Nexgen5000 also supports it's own OPC server component, when connected to it's programming port. Contact Messung for details.