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Hi, I'm trying to communicate from a Modicon Momentum M1E processor's Ethernet port to a Modbus slave (address 4) via a '174 CEV 300 10' gateway. I can communicate to the PLC from a Modbus master (if I reconfigure the gateway), but have not been able to work out the format of the MSTR instruction required to have the PLC as the master. Please can you advise me as to the form of the MSTR instruction I will need to write from a PLC (192.168.0.50) via the gateway (192.168.0.60) to the modbus serial slave address 4. The gateway is configured for the serial side of the communications, but I don't know what MSTR code I should be using. Any help would be appreciated.
Regards, Peter Elliot
P.S. I'll compile a help sheet if I ever get this going...
Regards, Peter Elliot
P.S. I'll compile a help sheet if I ever get this going...