Omron NX1P2 series User Manual page 257

Event name Present Values of Retained Variables Restoration Error
Meaning An error occurred in the software and the present values of retained variables could not be restored at startup. The val-
ues were initialized.
Source PLC Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
_RetainFail
Cause and Assumed cause
correction
An error occurred in the software.
Attached None
information
Precautions/ The following values are initialized.
Remarks
• Retained variables (variables with a Retain attribute or variables in retained areas with AT specifications) (NX1P2
CPU Unit)
• Retained variables (variables with a Retain attribute) (NY-series Controllers)
• Retained areas in the memory used for CJ-series Units (NX1P2 CPU Unit)
• Absolute encoder home offset data
*1. Refer to I/O Operation for Major Fault Level Controller Errors on page 6-8 for details.
NX-series NX1P2 CPU Unit Hardware User's Manual (W578)
Source details
Major fault Recovery
Stops. Operation
Data type
BOOL
Correction
Perform the following:
• Check the values of the retained
variables and the retained areas in
the memory used for CJ-series
Units and change them to the cor-
rect values. (NX1P2 CPU Unit)
• Check the values of the retained
variables and change them to the
correct values. (NY-series Control-
lers)
• If the system uses a Servomotor
with an absolute encoder, turn ON
the power supply, and then turn ON
the Servo and check the actual cur-
rent position of the axis.
6 Troubleshooting
Event code 100F0000 hex
None Detection
timing
Cycle the power Log category
supply or reset
the Controller.
*1
Stops .
The variables with a Retain attribute and memory for CJ-
series Units in the DM, EM, and Holding Areas were cor-
rupted. Normal user program execution or normal Unit
operation may not be possible. (NX1P2 CPU Unit)
The variables with a Retain attribute were corrupted. Nor-
mal user program execution or normal Unit operation may
not be possible. (NY-series Controllers)
Name
Retention Failure Flag
Prevention
None
At power ON or
Controller reset
System
6
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