Mitsubishi Q00JCPU User Manual page 565

10
CPU MODULE PROCESSING TIME
Basic
Note10.4
Q02CPU
Q02HCPU, Q06HCPU,
Q12HCPU, Q25HCPU,
Q12PHCPU, Q25PHCPU,
Q12PRHCPU, Q25PRHCPU
Q02CPU
Q02HCPU, Q06HCPU,
Q12HCPU, Q25HCPU,
Q12PHCPU, Q25PHCPU,
Q12PRHCPU, Q25PRHCPU
Note4
Since the Basic model QCPU cannot execute multiple programs, it is irrelevant to the difference
Basic
between global devices and local devices (
Note10.4
It is not necessary to be conscious of the overhead time of the fixed scan execution type
program.
1) Overhead time taken when local devices in interrupt program are made
Note10.4
available Note4
When SM777 (setting of whether local devices in interrupt program are
enabled or disabled) is turned ON to make the local devices in the interrupt
program available, the following time is added to the overhead time in
Table10.6 and Table10.7.
Table10.6 When local device file in standard RAM is used
Value added to pre-start
CPU module overhead time of interrupt
Table10.7 When local device file in SRAM card is used
Value added to pre-start
CPU module overhead time of interrupt
10.1.2 Time required for each processing included in scan time
program (Table10.3)
0.35 N + 0.05 ms
0.15 N + 0.03 ms
N : Number of local device points (Unit : k word)
program (Table10.3)
1.15 N + 0.30 ms
0.85 N + 0.15 ms
N : Number of local device points (Unit : k word)
Section 9.13.1).
10.1 Scan Time
Value added to program-end
overhead time of interrupt
program (Table10.4)
0.35 N + 0.05 ms
0.15 N + 0.03 ms
Value added to program-end
overhead time of interrupt
program (Table10.4)
1.15 N + 0.30 ms
0.85 N + 0.15 ms
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