Error Codes (continued)
PLC Error Codes
Error
Code
Status
Flag*
Error
Name
Category Causes Solutions
103 SC22
I/O Conο¬g
Error
Error
At least one I/O module was
removed from the CLICK PLC
during operation.
Power off the CLICK PLC and check the connection of the
I/O modules. Then power on the CLICK PLC again. If the
problem remains, connect the CLICK software to the PLC
and check the System Conο¬guration. If there is any I/O
module that is not shown in the System Conο¬guration,
replace it.
The PLC unit can not access one
or more I/O modules.
Connect the CLICK software to the CLICK PLC and open
the System Conο¬guration window. If there is any I/O
module that is used in the PLC system but not shown in
the System Conο¬guration window, replace the I/O module.
104 SC23
Memory
Check Error
Error There is a memory check error.
Power cycle the CLICK PLC. If the same error occurs
again, download the project again and/or try the βReset to
Factory Defaultβ command. If the same error still occurs,
replace the PLC unit.
105 SC24
Project File
Error
Error
There is no project ο¬le in the
CLICK PLC.
Download a project ο¬le into the CLICK PLC.
The project ο¬le stored in the
CLICK PLC is corrupted.
Download the project ο¬le into the CLICK PLC again.
106 SC25
Firmware
Version
Error
Error
The project ο¬le was written on a
newer version of CLICK software.
The ο¬rmware in the CLICK PLC is
too old to execute the project.
Connect the CLICK software to the CLICK PLC and update
the ο¬rmware of the PLC unit.
107 SC26
Watchdog
Timer Error
Error
The PLC scan time exceeded the
watchdog timer setup.
Connect the CLICK software to the PLC and check the
maximum PLC scan time and the watchdog timer setup.
108 SC26
Interrupt
Watchdog
Timer Error
Error
The PLC scan time exceeded the
watchdog timer setup.
The watchdog timer was exceeded while executing an
Interrupt Program. Reduce the occurrences of Interrupts,
or reduce the executing time of the Interrupt Programs to
prevent this error.
201 SC27
Lost SRAM
Data
Warning
The data in the SRAM was
lost while the CLICK PLC was
powered off.
The Basic PLC units do not have a battery back-up, but
they have a capacitor that will hold memory for a few
days. The data in the SRAM is lost if the CLICK PLC
is powered off for long enough for the capacitor to
discharge. In this case, the CLICK PLC initializes the data
in the SRAM automatically. This also applies to Standard
and Analog PLC units if a battery is not installed.
202 SC28
Battery Low
Voltage
Warning
Battery voltage is too low to
retain data in the SRAM.
Replace the battery (ADC part #: D2-BAT-1).
Also, set the new battery installation date and the
anticipated replacement date in the CLICK programming
software if the Battery Replacement Notiο¬cation option is
selected.
(Pull-down menu: Setup > Battery Backup Setup)
203 SC29
Battery
Replace-
ment
Warning
The anticipated battery
replacement date has passed.
Replace the battery (ADC part #: D2-BAT-1).
Also, set the new battery installation date and the
anticipated replacement date in the CLICK programming
software.
(Pull-down menu: Setup > Battery Backup Setup)
* The SC bits 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
6β12
Chapter 6: Troubleshooting