Failure Diagnosis Instructions; Failure Alarm: Fal(006) - Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual

Programmable controllers

Hide thumbs Also See for SYSMAC CJ - REFERENCE MANUAL 08-2008:

Table of Contents

Failure Diagnosis Instructions

3-30 Failure Diagnosis Instructions

Ladder Symbol

Applicable Program Areas

This section describes instructions used to define and handle errors.

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

• Generating Non-fatal System Errors (CS1-H, CJ1-H, CJ1M, or CS1D

Executed Each Cycle for ON Condition

Executed Once for Upward Differentiation

Executed Once for Downward Differentiation Not supported.

Immediate Refreshing Specification

Block program areas

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).

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

Section 3-30

Function code

Not supported.

Interrupt tasks

Table of Contents