Omron CP - PROGRAMMING MANUAL 05-2007 Programming Manual page 974

Failure Diagnosis Instructions
Flags
Clearing Non-fatal Errors without the CX-Programmer
1. Clearing User-defined Non-fatal Errors
When FAL(006) is executed with N set to 0, non-fatal errors can be cleared.
The value of S will determine the processing, as shown in the following ta-
ble.
S
&1 to &511 (0001 to 01FF hex) The FAL error of the specified number will be
FFFF hex
0200 to FFFE hex or word
specification
2. Clearing Non-fatal System Errors
There are two ways to clear non-fatal system errors generated with
FAL(006).
• Turn the PLC OFF and then ON again.
• When keeping the PLC ON, the system error must be cleared as if the
specified error had actually occurred.
Name Label
Error Flag ER
The following tables show relevant words and flags in the Auxiliary Area.
• Auxiliary Area Words/Flags for User-defined Errors Only
Name
FAL Error Flag
Executed FAL Num-
ber Flags
• Auxiliary Area Words/Flags for System Errors Only
Name
System-generated
FAL/FALS number
cleared.
All non-fatal errors (including system errors) will
be cleared.
T
he most serious non-fatal error (even if it is a
non-fatal system error) that has occurred.
When more than one FAL error has occurred,
the FAL error with the smallest FAL number will
be cleared.
Operation
ON if N is not within the specified range of 0 to 511 deci-
mal.
ON if a non-fatal system error is being generated, but the
specified error code or error details code is incorrect.
OFF in all other cases.
Address
A402.15 ON when an error is generated with
FAL(006).
A360.01 to When an error is generated with FAL(006),
A391.15 the corresponding flag will be turned ON.
Flags A360.01 to A391.15 correspond to FAL
numbers 0001 to 01FF.
Address
A529 A dummy FAL/FALS number is used when a
system error is generated with FAL(006). Set
the same dummy FAL/FALS number in this
word (0001 to 01FF hex, 1 to 511 decimal).
Section 3-28
Process
Operation
Operation
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