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MELSEC-A
6 TROUBLESHOOTING
6 TROUBLESHOOTING
The details of the errors which may occur when using the AJ65VBTCU-68DAVN and
troubleshooting are described.
6.1 Error Code List
When the data is written from the PLC CPU to the master module, and an error occurs
(AJ65VBTCU-68DAVN "RUN" LED flashes), the error code is stored to the
AJ65VBTCU-68DAVN remote register RWrn+8.
Table 6.1 Error Code List (Errors Detected by AJ65VBTCU-68DAVN)
Error Code
(Hexadecimal).
Cause Corrective
Action
11
The set digital value is outside the
setting range.
Correct the digital value to within the setting range.
20
The output range setting is outside the
setting range.
Correct the output range setting to within the setting range.
The indicates the channel number where the error occurred.
(1) For the digital value setting error, the "RUN" LED flickers at intervals of 0.5s and
D/A conversion is performed using the upper or lower limit value.
For the output range setting error, the "RUN" LED flickers at intervals of 0.1s and
D/A conversion is not performed on all channels.
(2) When multiple errors occurred, the error code of the first error is stored, but the
other errors are not stored.
(3) The error code reset is performed by turning on the error reset request flag (RY
(n+1) A).
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