Yaskawa VS-616G5 Modbus Plus Communication Card - Manual (Page 75)

Examples 9-31
MSTR Transaction #2
The Control Block registers for the second MSTR must be loaded with the following data before
the MSTR block is executed. This MSTR reads the drive status from drive #3.
CONTROL BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40710 Operation Code 0002h 0002h = Read from Multiple Registers
40711 Network Error Code 0000h The error code returned by Modbus Plus
communications
40712 Number of Registers 0010h Read from 16 consecutive registers
40713 Data Register Code F000h F000h = Drive Status Signals
40714 Routing 1 0003h Modbus Plus node address of the drive = 0003h
40715 Routing 2 0001h End of routing path = 0001h (Modbus Plus
requirement)
40716 Routing 3 0000h This routing register is not used, must be set to 0
40717 Routing 4 0000h This routing register is not used, must be set to 0
40718 Routing 5 0000h This routing register is not used, must be set to 0
The Data Block registers for the second MSTR will be filled with the following data after the MSTR
is completed.
DATA BLOCK
Register
Number
Register
Description
Register
Data
Data
Description
40720 Drive Status Signals READ RUN/STOP, FWD/REV, Drive Ready, etc.
40721 Motor Speed READ Motor Speed
40722 Torque Reference READ Torque Reference
40723 not used n/a n/a
40724 Speed Reference READ Frequency command to drive
40725 Output Frequency READ (0.1 Hz) Frequency at the drive
40726 Output Current READ Current at the output
40727 Analog Input READ Control Circuit Term 14 Input Volatge
40728 DC Bus Voltage READ (1.0 V) DC Bus voltage
40729 Fault Content 1 READ Overcurrent, Overvoltage,
40730 Fault Content 2 READ Drive Overload,
40731 Fault Content 3 READ etc.
40732 Analog Input READ Control Circuit Term 16 Input Voltage
40733 Digital Input READ Input Terminal Status
40734 Analog Input READ Control Circuit Term 13 Input Voltage
40735 not used n/a n/a