Yaskawa VS-616G5 Modbus Plus Communication Card - Manual (Page 70)

9-26 Examples
MSTR Transaction #3
The Control Block and Data Block registers for the third MSTR must be loaded with the following
data before the MSTR block is executed. This MSTR writes d1-01 through d5-06.
CONTROL BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40590 Operation Code 0001h 0001h = Write to Multiple Registers
40591 Network Error Code 0000h The error code returned by Modbus Plus
communications
40592 Number of Registers 0017h Write to 23 consecutive registers
40593 Data Register Code 0280h 0280h = start of dx-xx parameters
40594 Routing 1 0003h Modbus Plus node address of the drive = 0003h
40595 Routing 2 0001h End of routing path = 0001h (Modbus Plus
requirement)
40596 Routing 3 0000h This routing register is not used, must be set to 0
40597 Routing 4 0000h This routing register is not used, must be set to 0
40598 Routing 5 0000h This routing register is not used, must be set to 0
DATA BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40600 d1-01 WRITE Frequency Reference 1
40601 d1-02 WRITE Frequency Reference 2
? ? ? ?
40621 d5-05 WRITE Speed Limit Bias
40622 d5-06 WRITE Speed/Torque Control Switching Timer