YASKAWA OYMC V1000

272 YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
2.8 Message Examples
2.8 Message Examples
Below are some examples of command and response messages.
◆ Reading Drive MEMOBUS/Modbus Register Contents
Using the function code 03H (Read), a maximum of 16 MEMOBUS/Modbus registers can
be read out at a time.
The following table shows message examples when reading status signals, error details, data
link status, and frequency references from the slave 2 drive.
Command Message Response Message (normal) Response Message (fault)
Slave Address 02H Slave Address 02H Slave Address 02H
Function Code 03H Function Code 03H Function Code 83H
Starting
No.
Upper 00H Data Quantity 08H Error Code 03H
Lower 20H
1st storage
register
Upper 00H
CRC-16
Upper F1H
Data
Quantity
Upper 00H Lower 65H Lower 31H
Lower 04H
Next
storage
register
Upper 00H
CRC-16
Upper 45H Lower 00H
Lower F0H
Next
storage
register
Upper 00H
Lower 00H
Next
storage
register
Upper 01H
Lower F4H
CRC-16
Upper AFH
Lower 82H