Modbus RTU C70

[alexander.hefner]

Hi,

there’s a library called DRV_mbus for master or slave functionality, some more Infos can be found here:

Modbus Register Addressing for variables

Hi, if I got it right and you’re using modbus serial on one of the “normal” serial interfaces of the PLC, then the’re no address assign by tag editors. In that case, the Modbus RTU protocol is processed by own code using library “DRV_mbus”. How to put/get modbus data (coils, registers) into process variables depends on if you’re a modbus master or a slave. Being a master, the configuration is done by settings in the configuration data module that has to be used together with the function bl…

Best regards!