Omron NY532-5400 Troubleshooting Manual page 205

Event name File Already in Use
Meaning A file specified for an instruction cannot be accessed because it is already being used.
PLC Function Module
Source
Error attri-
Level
butes
Effects User program
System- Variable
defined
None
variables
Assumed cause
An instruction attempted to read
or write a file already being
accessed by another instruction.
Cause and
correction
Attached Information 1: Error Location
Attached Information 2: Error Location Details (Rung Number). For a program section, the rung number
from the start of the section is given. For ST, the line number is given.
Attached
Attached Information 3: Names of the Instruction and Instruction Instance Where the Error Occurred. If
information
there is more than one possible instruction, information is given on all of them. Nothing is given if the
instruction cannot be identified.
Attached Information 4: Expansion Error Code (ErrorIDEx)
Precautions/ If a program is changed after an error occurs, the attached information that is displayed may not be cor-
Remarks rect.
NY-series Troubleshooting Manual (W564)
Source details
Observation
Recovery
Continues.
Operation
Data type
---
Correction
Correct the program so that the
relevant instruction is only exe-
cuted when the Busy output vari-
able for all other instructions for
the same file are FALSE.
3 Error Descriptions and Corrections
Event code 54011405 hex
Instruction Detection
timing
---
Log category
The relevant instruction will end according to speci-
fications. The operation of the Unit is not affected.
Name
---
Prevention
When you execute multiple
instructions that access the same
file, write the program so that the
instructions are not executed
simultaneously. Make sure that
the Busy output variable for all
other instructions for the same file
is FALSE.
At instruction
execution
System
3
3-129