Mitsubishi Electric MELSEC-Q/L - Page 708

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7 APPLICATION INSTRUCTIONS
7.15 Clock Instructions
Operation error
• In any of the following cases, an operation error occurs, the error flag (SM0) turns on, and an error code is stored in SD0.
Program example
• Program that compares specified time data with D0 (hour), D1 (minute), and D2 (second)
Error
code
Error details Q00J/
Q00/
Q01
QnH QnPH QnPRH QnU LCPU
4101 The value in the device specified by (S1) exceeds the setting range (0 to 23).
The value in the device specified by (S2) exceeds the setting range (0 to 59).
The value in the device specified by (S3) exceeds the setting range (0 to 59).

[Ladder Mode]
Compare 10:30:50 with D0 (hour),
D1 (minute), and D2 (second).
M0 turns on when 10:30:50 > D0,
D1, and D2.
M1 turns on when 10:30:50 = D0,
D1, and D2.
M2 turns on when 10:30:50 < D0,
D1, and D2.