ABB ACS580 - Page 318

314 Parameters
58.34 Word order Selects in which order 16-bit registers of 32-bit parameters
are transferred.
For each register, the first byte contains the high order byte
and the second byte contains the low order byte.
Changes to this parameter take effect after the control unit is
rebooted or the new settings validated by parameter 58.06
Communication control (Refresh settings).
LO-HI
HI-LO The first register contains the high order word, the second
contains the low order word.
0
LO-HI The first register contains the low order word, the second
contains the high order word.
1
58.101 Data I/O 1 Defines the address in the drive which the Modbus master
accesses when it reads from or writes to the register address
corresponding to Modbus register 1 (400001).
The master defines the type of the data (input or output). The
value is transmitted in a Modbus frame consisting of two 16-
bit words. If the value is 16-bit, it is transmitted in the LSW
(least significant word). If the value is 32-bit, the subsequent
parameter is also reserved for it and must be set to None.
CW 16bit
None No mapping, register is always zero. 0
CW 16bit ABB Drives profile: 16-bit ABB drives control word; DCU
Profile: lower 16 bits of the DCU control word
1
Ref1 16bit Reference REF1 (16 bits) 2
Ref2 16bit Reference REF2 (16 bits) 3
SW 16bit ABB Drives profile: 16-bit ABB drives status word; DCU
Profile: lower 16 bits of the DCU status word
4
Act1 16bit Actual value ACT1 (16 bits) 5
Act2 16bit Actual value ACT2 (16 bits) 6
Reserved 7…10
CW 32bit Control Word (32 bits) 11
Ref1 32bit Reference REF1 (32 bits) 12
Ref2 32bit Reference REF2 (32 bits) 13
SW 32bit Status Word (32 bits) 14
Act1 32bit Actual value ACT1 (32 bits) 15
Act2 32bit Actual value ACT2 (32 bits) 16
Reserved 17…20
CW2 16bit ABB Drives profile: not used; DCU Profile: upper 16 bits of
the DCU control word
21
SW2 16bit ABB Drives profile: not used / always zero; DCU Profile:
upper 16 bits of the DCU status word
24
Reserved 25…30
RO/DIO control
word
Parameter 10.99 RO/DIO control word.31
AO1 data storage Parameter 13.91 AO1 data storage.32
AO2 data storage Parameter 13.92 AO2 data storage. 33
Reserved 34…39
Feedback data
storage
Parameter 40.91 Feedback data storage.40
No. Name/Value Description Def/FbEq16
ACS580 FW.book Page 314 Wednesday, September 21, 2016 9:48 PM