Yaskawa VS-616G5 Modbus Plus Communication Card - Manual (Page 50)

9-6 Examples
MSTR Transaction #1
In this example, the MSTR blocks are executed simultaneously. The Control Block and Data
Block registers for the first MSTR must be loaded with the following data before the MSTR block
is executed. This MSTR transaction reads global data from drive #2.
CONTROL BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40040 Operation Code 0006h 0006h = Read Global Data MSTR Function
40041 Network Error Code 0000h The error code returned by Modbus Plus
communications.
40042 Number of Registers 0008h Number of words of global data requested (0-8).
40043 Available Words 0000h The number of words available from the requested
node. This value is updated for you.
40044 Routing 1 0002h Modbus Plus node address of the drive = 0002h
40045 Routing 2 0001h End of routing path = 0001h (Modbus Plus
requirement)
40046 Routing 3 0000h This routing register is not used, must be set to 0
40047 Routing 4 0000h This routing register is not used, must be set to 0
40048 Routing 5 0000h This routing register is not used, must be set to 0
DATA BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40050 Operation Command READ receives the drive’s operation command (001h).
40051 Output Frequency READ receives the drive’s output frequency (F005h).
40052 Output Current READ receives the drive’s output current (F006h).
40053 DC Bus Voltage READ receives the voltage (F008h).
40054 Drive Status READ receives the drive status (F000h).
40055 Existing Fault Code 1 READ recieves the drive existing fault data (F009h)
40056 Existing Fault Code 2 READ recieves the drive existing fault data (F00Ah)
40057 Existing Fault Code 3 READ recieves the drive existing fault data (F00Bh)