Omron CP1H CPU Operation Manual page 609

Error Classification and Confirmation
CPU Unit Indicators and Error Meanings in RUN or MONITOR Mode
Seven-segment Display
Indicator CPU
error standby
POWER Lit Lit
RUN Not lit Not lit
ERR/ALM Lit Not lit
INH Not lit ---
BKUP --- ---
PRPHL --- ---
Two-digit, 7-segment display
Error codes are shown on the 7-segment display if an error occurs. The 7-
segment display has only two digits, so 4-digit error codes are displayed two
digits at a time. If there are 4-digit error details in addition to the error code,
they will be displayed after the error code two digits at a time.
• Display Example
Error code: 80F1 (memory error)
Error details: 0001 (user program)
8.0. f.1.
The display switches at intervals of approximately 1 s.
• If two or more errors occur at the same time, the most serious error will be
displayed first. When that error is cleared, the next most serious error will
be displayed.
• The 7-segment display shows digits created by special instructions in the
user program or by analog adjustment operations. Error code displays,
however, are given priority whenever an error occurs.
CPU Fatal Non-
error fatal
error
Lit Lit
Not lit Lit
Lit Flashing ---
--- ---
--- ---
--- ---
0.0.
Section 11-1
Peripheral port Output
communica- OFF Bit
tions error turned ON
Lit Lit
Lit Lit
---
--- Lit
--- ---
Not lit ---
(Not lit)
0.1.
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