Mitsubishi Q02HCPU - Page 572

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10.1 Scan Time
10.1.3 Factors that increase the scan time
10
CPU MODULE PROCESSING TIME
(3) Overheard time taken to execute multiple programs
Note10.9
Note10
This indicates the overhead time taken to execute multiple programs by the CPU
module.
When multiple programs are executed, the following processing time shown in
Table10.20 is required.
* 1 : n indicates the number of program files.
(4) Removal/setting of memory card
Note10.9
When the memory card is removed/set, the following processing time shown in
Table10.21 is required.
This processing time arises during only one scan when the memory card is removed/
set.
(5) Use of file registers
When the file registers are used, the following processing time shown in Table10.22 is
required.
*
1 : n indicates the number of program files.
Note10
Table10.20 Overhead time taken to execute multiple programs
CPU module Processing time
Q02CPU
0.08 n ms
*1
Q02HCPU,Q06HCPU,Q12HCPU,Q25HCPU,Q12PHCPU,
Q25PHCPU,Q12PRHCPU,Q25PRHCPU
0.03 n ms
*1
Table10.21 Processing time taken for removal/setting of memory card
CPU module
Processing time
When memory card is
inserted
When memory card is
removed
Q02CPU 0.16ms 0.10ms
Q02HCPU,Q06HCPU,Q12HCPU,Q25HCPU,Q1
2PHCPU,Q25PHCPU,Q12PRHCPU,
Q25PRHCPU
0.08ms 0.04ms
Table10.22 Processing time taken when file registers are used
CPU module Processing time
Standard RAM
Q02CPU 1.03ms
Q02HCPU,Q06HCPU,Q12HCPU,Q25HCPU,Q1
2PHCPU,Q25PHCPU,Q12PRHCPU,
Q25PRHCPU
0.41ms
SRAM card
Q02CPU
0.94 + 0.2 n ms
*1
Q02HCPU,Q06HCPU,Q12HCPU,Q25HCPU,Q1
2PHCPU,Q25PHCPU,Q12PRHCPU,
Q25PRHCPU
0.40 + 0.1 n ms
*1
Basic
Note10.9
Since the Basic model QCPU cannot execute multiple programs and use the memory card, it is
not necessary to be conscious of the processing time described on this page.
Basic
Note10.9
Basic
Note10.9