Omron SYSMAC CS1D-PD Series Operation Manual page 450

Error Log
10-1 Error Log
Errors Generated by
FAL(006)/FALS(007)
Error Log Structure
410
Each time that an error occurs, the CPU Unit stores error information in the
Error Log Area. The error information includes the error code (stored in
A400), error contents, and time that the error occurred. Up to 20 records can
be stored in the Error Log.
In addition to system-generated errors, the PLC records user-defined
FAL(006) and FALS(007) errors, making it easier to track the operating status
of the system.
A user-defined error is generated when FAL(006) or FALS(007) is executed in
the program. The execution conditions of these instructions constitute the
user-defined error conditions. FAL(006) generates a non-fatal error and
FALS(007) generates a fatal error. With a Single CPU System, CPU Unit
operation will stop for a FALS error. With a Duplex CPU System in Duplex
Mode, operation will switch to the standby CPU Unit for a FALS error and
operation will continue. With a Duplex CPU System in Simplex Mode, CPU
Unit operation will stop for a FALS error.
The following table shows the error codes for FAL(006) (beginning with "4")
and FALS(007) (beginning with "C").
Instruction
FAL(006) #0001 to #01FF hex (1 to 511 decimal)
FALS(007) #0001 to #01FF hex (1 to 511 decimal)
The time the error occurred is also stored. If the program generates an FAL
error, the CPU Unit will continue operation. If it generates an FALS error in
Duplex Mode, the standby CPU Unit will become the active CPU Unit unless
the error occurs in both CPU Units, in which case both CPU Units will stop.
When more than 20 errors occur, the oldest error data (in A100 to A104) is
deleted, the errors in A105 to A199 are shifted by one, and the newest record
is stored in A195 to A199.
Order of
occurrence
Error code
A100
4102
1
A101
A102
A103
00F7
2
A104
A105
A106
A107
A108
A109
009D
20
A195
A196
A197
A198
A199
A300
The number of records is stored in binary in the Error Log Pointer (A300).
Note The Error Log Pointer can be reset by turning ON the Error Log Pointer Reset
Bit (A50014). This operation will also clear the error log display for Program-
ming Devices, but it will not clear the data in the Error Log itself (A100 to
A199).
FAL numbers
Error Log Area
Error code
4 1 0 2
Error contents
Minute, second
Day, hour
Year, month
Error code
0 0 F 7
Error contents
Minute, second
Day, hour
Year, month
0 0 9 D Error code
Error contents
Minute, second
Day, hour
Year, month
Error Log Pointer (error counter)
Section 10-1
Error codes
4101 to 42FF
C101 to C2FF
Time of
occurrence
Time of
occurrence
Time of
occurrence