Yaskawa VS-616G5 Modbus Plus Communication Card - Manual (Page 53)

Examples 9-9
00030 00033 00031
00032
00031
00033
MSTR Transaction #1
This MSTR transaction writes to the F200h register of the drive on node #2. 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
40100 Operation Code 0001h 0001h = Write to Multiple Registers
40101 Network Error Code 0000h The error code returned by Modbus Plus
communications
40102 Number of Registers 0001h Write to 1 register
40103 Data Register Code F200h Global Write Data Code
40104 Routing 1 0002h Modbus Plus node address of drive = 0002h
40105 Routing 2 0001h End of routing path = 0001h (Modbus Plus
requirement)
40106 Routing 3 0000h This routing register is not used, must be set to 0
40107 Routing 4 0000h This routing register is not used, must be set to 0
40108 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
40110 Receive Global Data 0001h 0001h = the PLC/host device (source of global
data) address.
40160
40170
MSTR
#0010