Omron CP1H-CPU - 05-2006, Operation Manual

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471
Troubleshooting
Section 9-2
■
Reference Information
Cycle Time Too Long
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Reference Information
Errors Created with FALS Instructions
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Reference Information
Error flag Program Error Flag, A401.09
Error code (A400) 80F0
Error information Program error details, A294 to A299
Seven-segment
display
Probable cause and possible remedy
8.0.
→
9.f.
→
This error occurs when the cycle time PV exceeds the maximum
cycle time set in the PLC Setup. Review the program to decrease
the cycle time or change the maximum cycle time set in the PLC
Setup.
Refer to the Maximum Interrupt Task Processing Time (A440)
and study the maximum cycle time.
The cycle time can be decreased using the following methods.
• Separate instructions not being executed into different tasks.
• Consider using jump instructions for areas in the task that are
not executed.
• Prohibit cycle refreshing with Special I/O Units that do not
require exchange of cycle data.
Error flag Cycle Time Too Long Error, A401.08
Error code (A400) 809F
Error information ---
Seven-segment display Probable cause and possible remedy
c.1.
→
0.1.
→
FALS instruction
executed (FALS
number 001) A FALS instruction was executed in the program to
create a fatal error.
C100 hex will be added to the FALS number (001 to
1FF hex) and the result will be stored in A400 as
error codes C101 to C2FF hex.
Check the conditions for executing FALS instruc-
tions and remove any causes for the user-defined
error.
c.2.
→
0.0.
→
FALS instruction
executed (FALS
number 256)
c.2.
→
f.f.
→
FALS instruction
executed (FALS
number 511)
Error flag FALS Error Flag, A401.06
Error code (A400) C101 to C2FF
Error information ---