Omron CS1W-LC001 Operation Manual page 215

Errors and Alarm Troubleshooting
Code Description
31
Controller unit
number
duplicated
70 Illegal
combination of
function blocks
71 Inappropriate
parameter
80
Step Ladder
Program
command error
81 Step Ladder
Program source
designation not
defined
89 Overuse of Step
Ladder Program
differentiated
instruction
198
Explanation
The unit number set in ITEM 006 for
a ES100X Controller Terminal
(Block Model 045) is the same as
another ES100X Controller
Terminal. (A reponse timeout will
occur if the unit number does not
exist.)
The function block on the primary
loop side is not basic PID or
advanced PID when bumpless
processing between
primary/secondary loops was
specified in basic PID or advanced
PID.
a) When restricted conditions are
applied across two ITEMs:
(example: when the unit pulse
output is equal to or greater
than the operation cycle when
there is unit pulse output in run
time accumulation)
b) An attempt has been made to
write out-of-range data at the
ITEM Setting block.
There is an irrelevant command in
the Step Ladder Program, or the
method of use of commands is
wrong, for example, there is an AND
command even though there is no
input command.
Either the function block is not
registered to the block address
currently specified by each
command in the Step Ladder
Program, or the ITEM number does
not exist.
The number of differentiated
instructions to be simultaneously
executed has exceeded 256.
Operation at error
Communications will be
stopped with the ES100X
Controllers.
Running of the function
block in question is
stopped.
a) The function block in
question is not
executed.
b) Data cannot be written.
The command in question
and onwards are not
executed.
The command in question
and onwards are not
executed.
Differentiated instructions
exceeding 256 instructions
are not executed.
Section
Remedy
Change the unit number
settings (ITEM 006)so that
each is used only once.
Check the function block
model number on the primary
loop side.
Check the settings of the
ITEMs.
Check the program within the
Step Ladder Program block.
Check the block address and
ITEM number.
Reduce the number of
differentiated instructions to
be executed simultaneously.
7-1