Omron CP1H-CPU - 05-2006, Operation Manual

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Troubleshooting
Section 9-2
Errors Created with for FAL Instructions
A FAL instruction was executed in the program to create a non-fatal error.
■
Reference Information
Flash Memory Errors
■
Reference Information
Interrupt Task Errors
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Reference Information
Seven-segment display Probable cause and possible remedy
4.1.
→
0.1.
→
FAL instruction
executed (FAL
number 001) The executed FAL number 001 to 511 will be stored
in A360 to A391. The number 4 will be added to the
front of 101 to 2FF (which correspond to executed
FAL numbers 001 to 511) and the result will be
stored in A400 as error code 4101 to 42FF.
Check the conditions for executing FAL instructions
and remove any causes of the user-defined error.
4.2.
→
0.0.
→
FAL instruction
executed (FAL
number 256)
4.2.
→
f.f.
→
FAL instruction
executed (FAL
number 511)
Error flag FAL Error Flag, A402.15
Error code (A400) 4101 to 42FF
Error information None
Seven-segment
display
Probable cause and possible remedy
0.0.
→
f.1.
→
A315.15 will turn ON when writing to the internal flash memory
fails. Replace the CPU Unit when the internal flash memory has
been written to more than 100,000 times.
Error flag Flash Memory Error Flag, A315.15
Other non-fatal flags, A402.00
Error code (A400) None
Error information None
0.0.
→
8.b.
→ → →
Unit number of the interrupt task error
Seven-segment display Probable cause and possible remedy
0.0.
→
8.b.
→ →
8.0.
→
0.0.
→
Special I/O Unit
unit number 0 An interrupt task error occurs when the Detect Interrupt task errors set-
ting in the PLC Setup is set to Detect and an attempt is made to refresh a
Special I/O Unit from an interrupt task with IORF(097) while the Unit’s I/O
is being refreshed by cyclic refreshing (duplicate refreshing).
Review the program to see whether detecting interrupt task errors can be
disabled or avoided.
→
8.0.
→
0.f.
→
Special I/O Unit
unit number 15
→
8.0.
→
s.f..
→
Special I/O Unit
unit number 95
Error flag Interrupt Task Error Flag, A402.13
Error code (A400) 008B
Error information Interrupt Task Error, A426