Error Codes (continued)
PLC Error Codes
Error
Code
Status
Flag*
Error
Name
Category Causes Solutions
323 X209
IO2 CH3
Burnout
Warning
CH3 on the analog I/O module in
I/O2 position senses burnout or
open circuit.
Check the wiring for CH3.
Replace the sensor if it is broken.
324 X212
IO2 CH4
Burnout
Warning
CH4 on the analog I/O module in
I/O2 position senses burnout or
open circuit.
Check the wiring for CH4.
Replace the sensor if it is broken.
330 X302
IO3 Missing
24V
Warning
The analog I/O module in I/
O3 position is missing external
24VDC input.
Apply 24VDC to the analog I/O module.
331 X303
IO3 CH1
Burnout
Warning
CH1 on the analog I/O module in
I/O3 position senses burnout or
open circuit.
Check the wiring for CH1.
Replace the sensor if it is broken.
332 X306
IO3 CH2
Burnout
Warning
CH2 on the analog I/O module in
I/O3 position senses burnout or
open circuit.
Check the wiring for CH2.
Replace the sensor if it is broken.
333 X309
IO3 CH3
Burnout
Warning
CH3 on the analog I/O module in
I/O3 position senses burnout or
open circuit.
Check the wiring for CH3.
Replace the sensor if it is broken.
334 X312
IO3 CH4
Burnout
Warning
CH4 on the analog I/O module in
I/O3 position senses burnout or
open circuit.
Check the wiring for CH4.
Replace the sensor if it is broken.
340 X402
IO4 Missing
24V
Warning
The analog I/O module in I/
O4 position is missing external
24VDC input.
Apply 24VDC to the analog I/O module.
341 X403
IO4 CH1
Burnout
Warning
CH1 on the analog I/O module in
I/O4 position senses burnout or
open circuit.
Check the wiring for CH1.
Replace the sensor if it is broken.
342 X406
IO4 CH2
Burnout
Warning
CH2 on the analog I/O module in
I/O4 position senses burnout or
open circuit.
Check the wiring for CH2.
Replace the sensor if it is broken.
343 X409
IO4 CH3
Burnout
Warning
CH3 on the analog I/O module in
I/O4 position senses burnout or
open circuit.
Check the wiring for CH3.
Replace the sensor if it is broken.
344 X412
IO4 CH4
Burnout
Warning
CH4 on the analog I/O module in
I/O4 position senses burnout or
open circuit.
Check the wiring for CH4.
Replace the sensor if it is broken.
350 X502
IO5 Missing
24V
Warning
The analog I/O module in I/
O5 position is missing external
24VDC input.
Apply 24VDC to the analog I/O module.
351 X503
IO5 CH1
Burnout
Warning
CH1 on the analog I/O module in
I/O5 position senses burnout or
open circuit.
Check the wiring for CH1.
Replace the sensor if it is broken.
352 X506
IO5 CH2
Burnout
Warning
CH2 on the analog I/O module in
I/O5 position senses burnout or
open circuit.
Check the wiring for CH2.
Replace the sensor if it is broken.
353 X509
IO5 CH3
Burnout
Warning
CH3 on the analog I/O module in
I/O5 position senses burnout or
open circuit.
Check the wiring for CH3.
Replace the sensor if it is broken.
* The Status Flags are turned ON when the related errors occur.
Error code table continued on next page.
CLICK PLC Hardware User Manual, 6th Edition, Rev. F β C0-USER-M
6β14
Chapter 6: Troubleshooting