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APPENDICES
APPEN
DIX
Appendix 2 CPU Module Processing Time
Appendix 2.1 Time Required for Each Processing Included in Scan Time
(4) Module refresh time
Module refresh time is the total time required for auto refresh of the CC-Link and intelligent function module.
(a) Auto refresh time via CC-Link
This is the time required for auto refresh via CC-Link.
MELSEC-L CC-Link System Master/Local Module User's Manual
(b) Auto refresh time via intelligent function modules
This is the time required for refreshing data between the buffer memory of an intelligent function module and
devices in the CPU module.
[Auto refresh time via intelligent function modules]
KM1 + KM2 × (number of refresh points) [µs]
(5) Function execution time in END processing
This is the time required for updating calendar or clearing error in END processing.
(a) Calendar update processing time
When SM210 (Clock data set request) turned from off to on or when SM213 (Clock data read request) turned
on, the processing time for changing or reading the clock data are required in END processing.
(b) Error clear processing time
Upon the rising edge of SM50 (Error reset), the processing time for clearing the continuation error stored in
SD50 is required.
(c) Error clear processing time by error type
The processing time for clearing the continuation error by error time is required.
CPU module KM1 KM2
L02CPU 6.0 5.0
L26CPU-BT 4.0 5.0
CPU module
Processing time
When the clock data set request is
issued
When the clock data read request is
issued
L02CPU 0.025 [ms] 0.006 [ms]
L26CPU-BT 0.018 [ms] 0.006 [ms]
CPU module
Processing time
When the annunciator is cleared When the error is cleared
L02CPU 0.101 [ms] 0.098 [ms]
L26CPU-BT 0.075 [ms] 0.072 [ms]
CPU module
Processing time
When the annunciator is cleared When the error is cleared
L02CPU 0.117 [ms] 0.111 [ms]
L26CPU-BT 0.090 [ms] 0.087 [ms]
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