Mitsubishi Electric Q26UD(E)HCPU User Manual page 397

Error
Error and cause
code
[CAN'T EXE. MODE]
The function inexecutable in the debug mode or
operation mode (backup/separate mode) was
executed. (This can be detected from the control
system or standby system of the redundant
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system.)
■Collateral information
• Common information: -
• Individual information: -
■Diagnostic timing
• Always
[CPU MODE DIFF.]
In a redundant system, the operation mode
(backup/separate) differs between the control
system and standby system. (This can be
detected from the standby system of the
redundant system.)
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■Collateral information
• Common information: -
• Individual information: -
■Diagnostic timing
• At power-on/At reset/At tracking cable
connection
[CPU MODE DIFF.]
In a redundant system, the operation mode
(backup/separate) differs between the control
system and standby system. (This can be
detected from the standby system of the
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redundant system.)
■Collateral information
• Common information: -
• Individual information: -
■Diagnostic timing
• When an END instruction executed
[CPU MODE DIFF.]
Both System A and B are in the same system
status (control system). (This can be detected
from the system B of the redundant system.)
■Collateral information
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• Common information: -
• Individual information: -
■Diagnostic timing
• At power-on/At reset/At tracking cable
connection
[TRK. TRANS. ERR.]
• An error (e.g. retry limit exceeded) occurred in
tracking (data transmission). (This error may be
caused by tracking cable removal or other
system power-off (including reset).)
• The error occurred at a startup since the
redundant system startup procedure was not
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followed.
■Collateral information
• Common information: Tracking transmission
data classification
• Individual information: -
■Diagnostic timing
• Always
Corrective action
Execute the function executable in the debug
mode or operation mode (backup/separate
mode).
Match the operation modes of the control
system and standby system.
Match the operation modes of the control
system and standby system.
Power the CPU module (System B) which
resulted in a stop error, OFF and then ON.
• Check the CPU module or tracking cable. If
the same error occurs, the cause is a
failure of the CPU module or tracking cable.
Please consult your local Mitsubishi
representative.
• Confirm the redundant system startup
procedure, and execute a startup again.
APPENDICES
LED status, Corresponding
CPU status CPU
RUN: On
ERR.:On
QnPRH
CPU Status:Continue
RUN: Off
ERR.:Flashing
QnPRH
CPU Status:Stop
RUN: Off
ERR.:Flashing
QnPRH
CPU Status:Stop
RUN: Off
ERR.:Flashing
QnPRH
CPU Status:Stop
RUN: On
ERR.:On
QnPRH
CPU Status:Continue
A
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