55xGenComm1_29
16
Exception
code
Extended
exception code
Extended exception name
Notes
2
6
Write to a read only register
An attempt was made to
write to a read only
register, the register was
not changed and no
actions were taken. If this
occurred due to
insufficient privilege then
the ‘insufficient privilege’
exception will be returned
instead
2
7
Illegal value written to register
An attempt was made to
write a value that is not
within the allowable range,
the register was not
changed and no actions
were taken
1
8
Inappropriate circumstances
An operation was
requested that is not
appropriate in the present
circumstances, for
example a start attempt
when a shutdown alarm is
present.
1
9
Insufficient privilege
An operation was
attempted without
sufficient privilege, such
as writing when the read
only password has been
entered.
6
10
Slave device too busy
The slave device was too
busy to perform the
operation, try it again later
if it is still required. Note
that it may not be possible
to read the extended
exception code in this
situation.
1
11
Unsupported language
The selected language is
not supported, the
language has not been
changed.
1
12
Reserved register
The specified register is
defined as reserved in this
standard
2
13
Block violation
The specified range of
registers in invalid, no
actions were taken. An
attempt to read part of a
state string would cause
this error for example.
14-255
Reserved
Reserved for future use in
this standard
