Yaskawa DeviceNet Option Card CM059 - Manual (Page 39)

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Drive Modbus I/O Control Input Instance 100 (64 Hex)
This I/O instance allows all drive parameters and monitors to be read/set. This instance is for Yaskawa drives only, and is not
interchangeable with other DeviceNet drives, Assembly Object Class (04 Hex) Attribute (03 Hex). Both input/output use 5
bytes each. Refer to the Appendix A for a list of Modbus Registers.
Table 17: Drive Modbus I/O Control Instance 100 (64 Hex) (INPUT ASSEMBLY)
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 Function Code
1 Register Number (Upper Byte)
2 Register Number (Lower Byte)
3 Register Data (Upper Byte)
4 Register Data (Lower Byte)
Data Name Description
Byte 0
Function Code
Modbus (reference message) function code is set.
03 Hex: Read
10 Hex: Write
00 Hex: Undetermined
Byte 1, 2 Register Number (Upper and Lower Byte) A drive Modbus register No. is set.
Byte 3, 4 Register Data (Upper and Lower Byte) The write data at Modbus write command is set.