Writing To Multiple Registers - Omron V1000 User Manual

C.9 Message Examples
u

Writing to Multiple Registers

Function code 10h allows the user to write multiple drive MEMOBUS/Modbus registers with one message. This process
works similar to reading registers, i.e., the address of the first register that is to be written and the data quantity must be
set in the command message. The data to be written must be consecutive so that the register addresses are in order, starting
from the specified address in the command message. The data order must be high byte, then lower byte.
The following table shows an example of a message where a forward operation has been set with a frequency reference
of 60.0 Hz for the slave 1 drive.
If parameter values are changed using the Write command, depending on the setting of H5-11, an Enter command will be
necessary to activate the data or save them.
Refer to Enter Command on page 375
Command Message
Slave Address 01H
Function Code 10H
Upper 00H
Starting No.
Lower 01H
Upper 00H
Data Quantity
Lower 02H
Number of Bytes 04H
Upper 00H
Starting Data
Lower 01H
Upper 02H
Next Data
Lower 58H
Upper 63H
CRC-16
Lower 39H
Note: For the number of bytes in the command message, take double the number of the data quantity.
366
Refer to H5-11: Communications Enter Function Selection on page 359
for detailed descriptions.
Response Message (normal)
Slave Address 01H
Function Code 10H
Upper 00H
Starting No.
Lower 01H
Upper 00H
Data Quantity
Lower 02H
Upper 10H
CRC-16
Lower 08H
Response Message (fault)
Slave Address
Function Code
Error Code
Upper
CRC-16
Lower
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
and
01H
90H
02H
CDH
C1H