ABB RDNA-01 Manuel d'utilisateur Page 218

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218 ACS550-01/U1 User’s Manual
Embedded fieldbus
Actual values
The contents of the register addresses 40005…40012 are
ACTUAL VALUES and are:
specified using parameters 5310…5317
Read-only values containing information on the operation of the drive
16-bit words containing a sign bit and a 15-bit integer
when negative values, written as the two’s complement of the corresponding
positive value
scaled as described earlier in section Actual value scaling on page 207.
Exception codes
Exception codes are serial communication responses from the drive. The ACS550
supports the standard Modbus exception codes defined below.
Exception
code
Name Meaning
01
ILLEGAL FUNCTION Unsupported Command
02 ILLEGAL DATA ADDRESS The data address received in the query is not allowable. It is not
a defined parameter/group.
03
ILLEGAL DATA VALUE A value contained in the query data field is not an allowable
value for the ACS550, because it is one of the following:
Outside min. or max. limits.
Parameter is read-only.
Message is too long.
Parameter write not allowed when start is active.
Parameter write not allowed when factory macro is selected.
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