Mitsubishi MELSEC LJ71C24, Руководство пользователя

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12 DEDICATED INSTRUCTIONS
(4) Whether an INPUT instruction was completed or failed can be checked by the
completion device ((D2)) or status display device at completion ((D2)+1).
(a) Completion device: Turns on at the END processing of the scan where the
INPUT instruction is completed, and turns off at the next
END processing.
(b) Status display device
at completion : Turns on and off depending on the completion status
of the INPUT instruction.
• Normal completion : Off with no change.
• Abnormal completion: Turns on at the END
processing of the scan where
the INPUT instruction is
completed, and turns off at
the next END processing.
Error
(1) When a dedicated instruction is failed, the abnormal completion signal (D2)+1,
turns on and the error code is stored in the reception result (S)+1.
In case of operation errors, Error flag (SM0) turns on and the error code is stored
in SD0.
Refer to the following according to the error code, and check and correct the error.
<Error code>
4FFF
H
or less: MELSEC-L CPU Module User's Manual (Hardware Design,
Maintenance and Inspection)
7000
H
or later: Section 15.2