Mitsubishi Electric MELSEC iQ-R Series - Page 688

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APPX
Appendix 5 List of Special Register Areas
SD530 Scan program execution
time
Scan program execution time
(unit: ms)
• The execution time of the scan program for one scan is stored
into SD530 and SD531 (it is measured in increments of s).
SD530: stores a value in the ms place (storage range: 0 to
65535)
SD531: stores a value in the s place (storage range: 0 to 999)
• These areas are cleared to 0 when the operating status of the
CPU module is switched from STOP to RUN.
• In a redundant system, when the operating status of the CPU
module is RUN state, these areas are cleared to 0 at the
system switching.
S (Every END)
SD531 Scan program execution time
(unit: s)
No. Name Data stored Details Set by (setting
timing)