336 Control through the embedded fieldbus interface
îš„ Modbus register addresses for the DCU 32-bit profile
The table below shows the Modbus register addresses and data with the DCU 32-bit
profile. This profile provides native 32-bit access to the drive data.
Register address Register data (16-bit)
400001 Control Word (02.36 EFB main cw) – Least significant 16-bits
400002 Control Word (02.36 EFB main cw) – Most significant 16-bits
400003 Reference 1 (02.38 EFB main ref1) – Least significant 16-bits
400004 Reference 1 (02.38 EFB main ref1) – Most significant 16-bits
400005 Reference 2 (02.39 EFB main ref2) – Least significant 16-bits
400006 Reference 2 (02.39 EFB main ref2) – Most significant 16-bits
400007 Data in/out 1 (Drive parameter 58.35 Data I/O 1)
... ...
400018 Data in/out 12 (Drive parameter 58.46 Data I/O 12)
400051 Status Word (LSW of 02.37 EFB main sw) – Least significant 16-bits
400052 Status Word (MSW of 02.37 EFB main sw) – Most significant 16-bits
400053 Actual value 1 (selected by parameter 50.01 Fb ref1 modesel) – Least
significant 16-bits
400054 Actual value 1 (selected by parameter 50.01 Fb ref1 modesel) – Most
significant 16-bits
400055 Actual value 2 (selected by parameter 50.02 Fb ref2 modesel) – Least
significant 16-bits
400056 Actual value 2 (selected by parameter 50.02 Fb ref2 modesel) – Most
significant 16-bits
400057 Data in/out 13 (Drive parameter 58.47 Data I/O 13)
……
400068 Data in/out 24 (Drive parameter 58.58 Data I/O 24)
400101…409999 Register address (16-bit drive parameter) = 400000 + 100
× group +
index
Example: Modbus register address to drive parameter 03.18 is
400000 + 100
× 3 + 18 = 400318
Drive parameter access (32-bit drive parameter) = 420000 + 200 ×
group + 2 × index
Example: Modbus register address to drive parameter 01.27
420000 + 200 × 1 + 2 × 27 = 420254
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