Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual page 1186

Failure Diagnosis Instructions
Flags
Precautions
Examples
1,2,3...
• 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 (CS1-H, CJ1-H,
CJ1M, and CS1D CPU Units Only)
Name
System-generated
FAL/FALS number
• Auxiliary Area Words/Flags for both User-defined and System Errors
Name
Error Log Area
Error code
N must between 0000 and 01FF. An error will occur and the Error Flag will be
turned ON if N is outside of the specified range.
Generating a Non-fatal Error
When CIO 000000 is ON in the following example, FAL(006) will generate a
non-fatal error with FAL number 31 and execute the following processes.
1. The FAL Error Flag (A40215) will be turned ON.
2. The corresponding Executed FAL Number Flag (A36114) will be turned
ON.
3. The corresponding error code (411F) will be written to A400.
Note If two or more errors occur at the same time, the error code of the
most serious error (with the highest error code) will be stored in
A400.
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 (CS1-H/
CJ1-H/CJ1M/CS1D Only), but the specified error code or
error details code is incorrect.
OFF in all other cases.
Address
A40215 ON when an error is generated with
FAL(006).
A36001 to When an error is generated with FAL(006),
A39115 the corresponding flag will be turned ON.
Flags A36001 to A39115 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).
Address
A100 to The Error Log Area contains the error codes
A199 and time/date of occurrence for the most
recent 20 errors, including errors generated
by FAL(006).
A400 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.
Section 3-30
Operation
Operation
Operation
1147