Nidec NE200 - Wiring of control circuit

NE200/300 Series Drive User Manual
Appendix A Modbus Communication Protocol 207
communication between master and slave. The format is as follows:
The Master Request
Slave address 01H
Function code 08H
Register address Hi 00H
Register address Lo 00H
Data Hi 12H
Data Lo 34H
CRC Hi EDH
CRC Lo 7CH
The Slave Response
Slave address 01H
Function code 08H
Register address Hi 00H
Register address Lo 00H
Data Hi 12H
Data Lo 34H
CRC Hi EDH
CRC Lo 7CH
If the operation request is rejected, the response will be error code and
abnormal function code. Error function code equals to function code +0x80,
abnormal code shows the error cause in detail. The format is as follows:
The slave response for the rejected request
Slave address 01H
Function code 83H
Error Code 02H
CRC Hi C0H
CRC Lo F1H