Mitsubishi Electric MELSEC Q Series User Manual page 479

When accessing the positioning module other than QD72P3C3 in a single CPU system
Function
QBF_FromBuf
QBF_ToBuf
(c) Multiple CPU shared memory (auto refresh area or user setting area) access time
When accessing the CPU shared memory (auto refresh area or user setting area) in a multiple CPU system
(CPU No.1:Q26UDHCPU, CPU No.2: C Controller module)
Function
QBF_FromBuf
QBF_ToBuf
(d) Multiple CPU shared memory (multiple CPU high speed transmission area) access time
When accessing the CPU shared memory (multiple CPU high speed transmission area) in a multiple CPU
system (CPU No.1:Q26UDHCPU, CPU No.2: C Controller module)
Function
QBF_FromBuf
QBF_ToBuf
(2) MELSEC data link function processing time
The MELSEC data link function processing time varies depending on the target module, and the route and
devices used for communication.
When the communication target is a programmable controller CPU, the operating status, sequence scan time,
and link scan time of the programmable controller CPU may also affect the processing time.
(3) C Controller module dedicated function processing time
Function
CCPU_ReadDataRefreshMemory
CCPU_WriteDataRefreshMemory
Access size Access time
1word 451
µs
64words 511
512words 741
1word 431
64words 491
512words 761
Access time
Access size
Host
µs
1word 424
µs
64words 450
µs
512words
545
µs
1word 414
µs
64words
441
µs
512words 555
Access time
Access size
Host
µs
1word 433
µs
64words 481
µs
512words
585
µs
1word 423
µs
64words
454
µs
512words 577
Access size Access time
µs
1word 5
µs
64words
114
512words 896
µs
1word
3
µs
64words 15
µs
512words 114
APPENDICES
µs
µs
µs
µs
µs
No.1
µs
420
µs
484
µs
711
–
–
–
No.1
µs
437
µs
508
µs
736
–
–
–
µs
477
A