ACH550-UH User’s Manual
1-245
Embedded fieldbus
For the Modbus protocol, drive parameters in group 53 report the parameter
mapping to 4xxxx Registers.
Except where restricted by the drive, all parameters are available for both reading
and writing. The parameter writes are verified for the correct value, and for a valid
register addresses.
Note:
Parameter writes through standard Modbus are always volatile i.e. modified
values are not automatically stored to permanent memory. Use parameter 1607
PARAM
.
SAVE
to save all altered values.
The ACH550 supports the following Modbus function codes for 4xxxx registers:
40047
ACH550
REF
2 LSW
R/W
Maps directly to the Least Significant Word of the DCU
profile’s
REF
2. Supported only if BP Parameter
5305 = 1. See drive parameter 0112.
40048
ACH550
REF
2 MSW
R/W
Maps directly to the Most Significant Word of the DCU
profile’s
REF
2. Supported only if BP Parameter
5305 = 1. See drive parameter 0112.
Code
Description
5310
EFB PAR 10
Specifies the parameter mapped to Modbus register 40005.
5311
EFB PAR 11
Specifies the parameter mapped to Modbus register 40006.
5312
EFB PAR 12
Specifies the parameter mapped to Modbus register 40007.
5313
EFB PAR 13
Specifies the parameter mapped to Modbus register 40008.
5314
EFB PAR 14
Specifies the parameter mapped to Modbus register 40009.
5315
EFB PAR 15
Specifies the parameter mapped to Modbus register 40010.
5316
EFB PAR 16
Specifies the parameter mapped to Modbus register 40011.
5317
EFB PAR 17
Specifies the parameter mapped to Modbus register 40012.
5318
Reserved.
5319
EFB PAR 19
Holds a copy (in hex) of the
CONTROL
WORD
, Modbus register 40001.
5320 EFB
PAR
20
Holds a copy (in hex) of the
STATUS
WORD
, Modbus register 40004.
Function Code
Description
03
Read holding 4xxxx registers
06
Preset single 4xxxx register
16 (0x10 Hex)
Preset multiple 4xxxx registers
23 (0x17 Hex)
Read/write 4xxxx registers
Modbus Register
Access
Remarks
Summary of Contents for ACH550-BCR
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