Delta Electronics RTU-EN01 Manual de usuario descargar pdf (Pagina 12)

Ethernet Communication Module DVPEN01-SL

CR#27: Function code for a data exchange mode

Explanations:

0: Using the function code “0x17” for the reading of data and the writing of data

1: Using the function code

“0x03” for the reading of data; using the function code “0x06” for the writing of a single piece

of data; using the function code “

0x10” for the writing of multiple pieces of data

CR#28: Destination slave ID

Explanations:

When you set the Salve ID (i.e. K1~K255) for data exchange, DVPEN01-SL will automatically search for the

corresponding IP address from the slave IP address list. For example, if the ID is set as “0”, the value in CR#25 and

#26 will be regarded as the destination IP address.

CR#29~48: Data transmission buffer

Explanations:

Storing the data to be transmitted to the remote MPU.

CR#49~68: Data receiving buffer

Explanations:

Storing the data received from the remote MPU.

CR#81: Read address for data exchange

Explanations:

Setting manually the MODBUS address of the register for Slave data exchange

Only register address is allowed (e.g. D0=H’1000).

CR#82: Read length for data exchange

Explanations:

The number of receiving registers (K1~K100) in data exchange.

CR#83: Read length for data exchange

Explanations:

Setting the MODBUS address of the register for Master data exchange

CR#84: Written-in address for data exchange

Explanations:

Setting manually the MODBUS address of the register for Slave data exchange

DVP-PLC Operation Manual

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Delta Electronics RTU-EN01 Manual de usuario Pagina 12