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Comapct HMI supports Modbus Serial Protocol and it has inbuilt driver for it. Configure AC500 as Modbus Serial Slave and use the above driver to establish communication with CHMI and AC500. Hope it helps you to start with the interface.
How the addressing in CHMI5.1 for Modbus?
Refer the following thread for PLC Modbus addresses
Thank you very much for your help sir.
But what will be the addressing in CHMI5.1 according to PLC address %MD0.0