Mitsubishi Electric MELSEC-Q00U(J)CPU User Manual page 568

Number Name/Description
Service interval measurement
SD550
module
SD551
Service interval time
SD552
Program No. specification for
SD720
PLAODP instruction
*1
Power supply off detection status
SD1780
Power supply failure detection
*1
SD1781
status
Momentary power failure detection
*1
SD1782
counter for power supply 1
Momentary power failure detection
*1
SD1783
counter for power supply 1
*1 The special register can be used if the serial number (first five digits)of the Universal model QCPU is "10042" or later.
566
The Universal model QCPU does not support the service interval measurement
function. Delete the corresponding sections.
The Universal model QCPU does not support the PLAODP instruction. Delete the
corresponding sections.
The Universal model QCPU does not store redundant power supply system
information in SD1780 to SD1783. Delete the corresponding sections. (SD1780 to
SD1783 are always off.)
Measures