Input/output data
5-5
Error code
Name
Error
occurrence ID
Countermeasures taken by customer
DEC
HEX
302
12E
Parameter access
target ID error
As this error is
not dependent
on individual
slave units, the
“0x0FFF” value
is stored.
Parameter access has been performed for an ID
whose address has not been automatically
recognized. Narrow down error IDs by checking
the alarm ID information in the memory.
Next, perform the following: Check if the slave
unit ID of the parameter access target in the
program matches the ID of the actual system.
Note that the ID of the input slave unit and the ID
of the input/output mixed slave unit are their
add200H.
Carry out automatic address recognition when
newly creating a system or altering the system
(adding or eliminating slave units, changing
addresses).
Then, check that the number of slave units and
addresses are the same as those of the actual
system.
303
12F
Parameter set
value error
Occurrence ID
is stored.
The slave unit has detected a signal for writing a
parameter which cannot be set to itself.
After narrowing down error IDs, check that the set
value of the slave unit parameter is within the
settable range.
304
130
Parameter access
error
Occurrence ID
is stored.
Check for any problems due to noise.
305
131
Parameter access
error
Occurrence ID
is stored.
The slave unit provides notification of error status.
Check the details of the target unit status and
remove the cause of the fault.
400
190
ID redundancy
error
Occurrence ID
is stored.
A redundant address (ID) is set for a connected
slave unit.
After narrowing down error IDs, check the setting
of the slave unit address (ID), and set the ID so
that there will be no redundancy.
401
191
ID not set error
Occurrence ID
is stored. (255
or 767)
There is a slave unit whose address has not been
set (default setting).
Perform the following:
Set the slave unit address.
Check that the slave unit address is not set to
255.
