Omron CP - PROGRAMMING MANUAL 05-2007 Programming Manual page 990

Failure Diagnosis Instructions
Precautions
The following table shows relevant words and flags in the Auxiliary Area.
Name Address
FAL Error Flag A402.15
Executed FAL A360.01 to
Number Flags A391.15
Error Log Area A100 to
A199
Error code A400
FPD Teaching A598.00
Bit
When the time monitoring function is being used, the execution condition for
FPD(269) must remain ON for the entire monitoring time set in T.
The execution condition for FPD(269) must be made up of a combination of
normally open and normally closed inputs.
The error-processing block is optional. When an error-processing block is
included, be sure to use outputs or other right-hand instructions. LD and LD
NOT cannot be used at this point.
FPD(269) can be used more than once in the program, but each instruction
must have a unique register (R) setting.
The monitoring time is refreshed only when FPD(269) is executed. If the cycle
time is longer than 100 ms, the monitoring time will not be refreshed normally
and FPD(269) will not operate correctly because the monitoring time is
updated in units of 100 ms.
Operation
ON when a non-fatal (FAL) error is registered in time
monitoring.
When a non-fatal (FAL) error is registered in time mon-
itoring, the corresponding flag will be turned ON. Flags
A360.01 to A391.15 correspond to FAL numbers 0001
to 01FF.
The Error Log Area contains the error codes and time/
date of occurrence for the most recent 20 errors,
including errors generated by FPD(269).
When an error occurs its error code is stored in A400.
The error codes for FAL numbers 0001 to 01FF are
4101 to 42FF, respectively.
If two or more errors occur simultaneously, the error
code of the most serious error will be stored in A400.
Turn this bit ON when you want the monitoring time to
be set automatically (teaching function) when
FPD(269) is executed.
Section 3-28
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