Yaskawa VS-616G5 Modbus Plus Communication Card - Manual (Page 54)

9-10 Examples
MSTR Transaction #2
This MSTR transaction writes to the F200h register of the drive on node #3. The Control Block
registers must be loaded with the following data before the MSTR block is executed:
CONTROL BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40120 Operation Code 0001h 0001h = Write to Multiple Registers
40121 Network Error Code 0000h The error code returned by Modbus Plus
communications
40122 Number of Registers 0001h Write to 1 register
40123 Data Register Code F200h Global Write Data Code
40124 Routing 1 0003h Modbus Plus node address of drive = 0003h
40125 Routing 2 0001h End of routing path = 0001h (Modbus Plus
requirement)
40126 Routing 3 0000h This routing register is not used, must be set to 0
40127 Routing 4 0000h This routing register is not used, must be set to 0
40128 Routing 5 0000h This routing register is not used, must be set to 0
The Data Block registers must be loaded with the appropriate PLC address before the MSTR
block is executed.
DATA BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40130 Receive Global Data 0001h 0001h = the PLC/host device (source of global
data) address.
MSTR Transaction #3
This MSTR transaction writes to the F200h register of the drive on node #4. The Control Block
registers must be loaded with the following data before the MSTR block is executed:
CONTROL BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40140 Operation Code 0001h 0001h = Write to Multiple Registers
40141 Network Error Code 0000h The error code returned by Modbus Plus
communications
40142 Number of Registers 0001h Write to 1 register
40143 Data Register Code F200h Global Write Data Code
40144 Routing 1 0004h Modbus Plus node address of drive = 0004h
40145 Routing 2 0001h End of routing path = 0001h (Modbus Plus
requirement)
40146 Routing 3 0000h This routing register is not used, must be set to 0
40147 Routing 4 0000h This routing register is not used, must be set to 0
40148 Routing 5 0000h This routing register is not used, must be set to 0