Omron ZW-C1*AT User Manual page 273

Event Code Event name
74910000 Hex EXE input error EXE input processing
74920000 Hex SYNC input
error
74930000 Hex TIMING input
error
74940000 Hex RESET input
error
74950000 Hex ZERO input
error
74960000 Hex ZEROCLR
input error
ALARM
Note When error marked by
main and sub-displays, respectively.
*1: Fault Levels
• Major Fault Level
These errors prevent control operations for the entire Controller. If a major fault level error is detected, user program execution is stopped
immediately and the loads for all slaves (including remote I/O) are turned OFF. You cannot reset major fault level errors from the user pro-
gram, the Sysmac Studio, or an NS-series PT. To recover from a major fault level error, remove the cause of the error, and either cycle the
power supply to the Controller or reset the Controller from the Sysmac Studio.
• Partial Fault Level
These errors prevent control operations in a certain function module in the Controller. The NJ-series CPU Unit continues to execute the
user program even after a partial fault level error occurs. After you remove the cause of the error, execute one of the following to return to
normal status.
• Reset the error from the user program, the Sysmac Studio, or an NS-series PT.
• Cycle the power supply to the Controller.
• Reset the Controller from the Sysmac Studio.
• Minor Fault Level
These errors prevent part of the control operations in a certain function module in the Controller. The troubleshooting for minor fault level
errors is the same as the processing for partial fault level errors.
• Observations
These errors do not affect the control operations of the Controller. Observations serve as warnings to the user so that the error does not
develop into an error at a higher level.
• Information
Events that are classified as information do not indicate errors.
ZW User's Manual
Meaning
• EXE input turned ON in the
was not executed FUN mode.
correctly. • EXE input turned ON with
READY output OFF.
SYNC input • SYNC input turned ON in the
processing was not FUN mode.
executed correctly.
TIMING input • TIMINGx input turned ON in
processing was not the FUN mode.
executed correctly. • TIMINGx input turned ON or
OFF while RESETx input
was ON.
• TIMINGx input turned ON in
a non-measurement state.
• TIMINGx input turned ON
before the "delay time + sam-
pling time" elapsed.
RESET input RESETx input turned ON in the
processing was not FUN mode.
executed correctly.
ZERO input • ZEROx input turned ON in
processing was not the FUN mode.
executed correctly. • ZEROx input turned ON in a
non-measurement state.
• ZEROx input turned ON for a
task whose status is OFF.
ZEROCLR input ZEROCLRx input turned ON in
processing was not the FUN mode.
executed correctly.
occur, the ALARM output of parallel I/O turns ON, and "SYSERR" and error code are displayed on the
Assumed cause
Maj
Level (*1)
Reference
(Pages)
Prt Min Obs Info

p.277

p.278

p.278

p.279

p.279

p.280
Error Messages
271