Mitsubishi Q02CPU

10
CPU MODULE PROCESSING TIME
10.1 Scan Time
10.1.2 Time required for each processing included in scan time
10
- 7
9
Device Explanation
10
CPU Module Processing Time
11
Procedure for Writing Program to CPU Module
AppendicesIndex
1) Overhead time taken when local devices in interrupt program are made
available
Note10.4
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.
N : Number of local device points (Unit : k word)
N : Number of local device points (Unit : k word)
Note4
Table10.6 When local device file in standard RAM is used
CPU module
Value added to pre-start
overhead time of interrupt
program (Table10.3)
Value added to program-end
overhead time of interrupt
program (Table10.4)
Q02CPU
0.35 N + 0.05 ms 0.35 N + 0.05 ms
Q02HCPU, Q06HCPU,
Q12HCPU, Q25HCPU,
Q12PHCPU, Q25PHCPU,
Q12PRHCPU, Q25PRHCPU
0.15 N + 0.03 ms 0.15 N + 0.03 ms
Table10.7 When local device file in SRAM card is used
CPU module
Value added to pre-start
overhead time of interrupt
program (Table10.3)
Value added to program-end
overhead time of interrupt
program (Table10.4)
Q02CPU
1.15 N + 0.30 ms 1.15 N + 0.30 ms
Q02HCPU, Q06HCPU,
Q12HCPU, Q25HCPU,
Q12PHCPU, Q25PHCPU,
Q12PRHCPU, Q25PRHCPU
0.85 N + 0.15 ms 0.85 N + 0.15 ms
Basic
Note10.4
Since the Basic model QCPU cannot execute multiple programs, it is irrelevant to the difference
between global devices and local devices ( Section 9.13.1).
It is not necessary to be conscious of the overhead time of the fixed scan execution type
program.
Basic
Note10.4