ABB ACS355 User Manual page 313

group number, while the tens and ones correspond to the parameter number
within a group.
The register addresses that do not correspond with drive parameters are invalid.
If there is an attempt to read or write invalid addresses, the Modbus interface returns
an exception code to the controller. See
The following table gives information on the contents of the Modbus addresses
40001...40012 and 40031...40034.
Modbus register
40001 Control word
40002 Reference 1
40003 Reference 2
40004 Status word
40005 Actual 1...8
...
40012
40031 Control word LSW
40032 Control word MSW R/W
40033 Status word LSW
40034 ACS355 Status
word MSW
Note: Parameter writes through standard Modbus are always volatile, ie modified
values are not automatically stored to the permanent memory. Use parameter
PARAM SAVE to save all changed values.
Fieldbus control with embedded fieldbus 313
Exception codes
Access Information
R/W Control word. Supported only by the ABB drives profile,
ie when 5305 EFB CTRL PROFILE
LIM or ABB DRV
shows a copy of the Control word in hexadecimal
format.
R/W External reference REF1. See section
references
R/W External reference REF2. See section
references
R Status word. Supported only by the ABB drives profile,
ie when 5305 EFB CTRL PROFILE
LIM or ABB DRV
shows a copy of the Control word in hexadecimal
format.
R Actual value 1...8. Use parameter 5310...
select an actual value to be mapped to Modbus register
40005...40012.
R/W 0301 FB CMD WORD
the DCU profile 32-bit Control word.
Supported only by the DCU profile, ie when
CTRL PROFILE
0302 FB CMD WORD
the DCU profile 32-bit Control word.
Supported only by the DCU profile, ie when
CTRL PROFILE
R 0303 FB STS WORD
the DCU profile 32-bit Status word.
Supported only by the DCU profile, ie when
CTRL PROFILE
R 0304 FB STS WORD
the DCU profile 32-bit Status word.
Supported only by the DCU profile, ie when
CTRL PROFILE
on page 314.
FULL. Parameter
on page 308.
on page 308.
FULL. Parameter
1, ie the least significant word of
setting is DCU PROFILE.
2, ie the most significant word of
setting is DCU PROFILE.
1, ie the least significant word of
setting is DCU PROFILE.
2, ie the most significant word of
setting is DCU PROFILE.
setting is ABB DRV
5319 EFB PAR 19
Fieldbus
Fieldbus
setting is ABB DRV
5320 EFB PAR 20
5317 to
5305 EFB
5305 EFB
5305 EFB
5305 EFB
1607