Mstr transaction #4 – Yaskawa VS-616G5 Modbus Plus Communication Card User Manual
Page 71

Examples 9-27
MSTR Transaction #4
The Control Block registers for the fourth MSTR must be loaded with the following data before the
MSTR block is executed. This MSTR writes to E1-01 through E2-05.
CONTROL BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40630
Operation Code
0001h
0001h = Write to Multiple Registers
40631
Network Error Code
0000h
The error code returned by Modbus Plus
communications
40632
Number of Registers
0017h
Write to 23 consecutive registers
40633
Data Register Code
0300h
0300h = start of Ex-xx parameters
40634
Routing 1
0003h
Modbus Plus node address of drive = 0003h
40635
Routing 2
0001h
End of routing path = 0001h (Modbus Plus
requirement)
40636
Routing 3
0000h
This routing register is not used, must be set to 0
40637
Routing 4
0000h
This routing register is not used, must be set to 0
40638
Routing 5
0000h
This routing register is not used, must be set to 0
DATA BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40640
E1-01
WRITE
Input Voltage Setting
40641
E1-02
WRITE
Motor Selection
?
?
?
?
40657
E2-04
WRITE
Number of Motor Poles
40658
E2-05
WRITE
Motor Line-to-Line Resistance