Failure Diagnosis Instructions; Failure Alarm: Fal(006) - Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual

Failure Diagnosis Instructions

3-30 Failure Diagnosis Instructions

3-30-1 FAILURE ALARM: FAL(006)

Purpose
Ladder Symbol
Variations
Applicable Program Areas
Operands
This section describes instructions used to define and handle errors.
Instruction
FAILURE ALARM
SEVERE FAILURE ALARM
FAILURE POINT DETECTION
Generates or clears user-defined non-fatal errors. Non-fatal errors do not stop
PLC operation.
With CS1-H, CJ1-H, and CJ1M CPU Units, FAL(006) can also be used to
generate non-fatal system errors.
• Generating or Clearing User-defined Non-fatal Errors
FAL(006)
N
S
• Generating Non-fatal System Errors (CS1-H, CJ1-H, CJ1M, or CS1D
Only)
FAL(006)
N
S
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification
Block program areas
OK
The function of the operands when FAL(006) is used to generate/clear user
defined errors is slightly different from the function when FAL(006) is used to
generate system errors (CS1-H, CJ1-H, CJ1M, and CS1D CPU Units only).
Mnemonic
FAL
FALS
FPD
N: FAL number
S: First message word or
constant (0000 to FFFF)
N: FAL number (value in A529)
S: First word containing the
error code and error details
Step program areas
OK OK
Section 3-30
Function code Page
006 1141
007 1149
269 1157
FAL(006)
@FAL(006)
Not supported.
Subroutines Interrupt tasks
OK
1141