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(a) Overhead time at execution of interrupt and fixed scan execution type programs
When calculating instruction execution time, add the overhead time given in the following table to the instruc-
tion execution time, which is described in (3).
Two kinds of overhead time (pre-start and program-end) need to be added to interrupt programs.
CPU module
Q00UJCPU, Q00UCPU, Q01UCPU
Q02UCPU
Q03UDCPU, Q03UDECPU
Q04UDHCPU, Q06UDHCPU,
Q10UDHCPU, Q13UDHCPU,
Q20UDHCPU, Q26UDHCPU,
Q04UDEHCPU, Q06UDEHCPU,
Q10UDEHCPU, Q13UDEHCPU,
Q20UDEHCPU, Q26UDEHCPU
*1: Indicates the value when the QI60 is mounted on the slot 0 of the main base unit.
Q00UJCPU, Q00UCPU, Q01UCPU
Q02UCPU
Q03UDCPU, Q03UDECPU
Q04UDHCPU, Q06UDHCPU, Q10UDHCPU, Q13UDHCPU, Q20UDHCPU,
Q26UDHCPU, Q04UDEHCPU, Q06UDEHCPU, Q10UDEHCPU, Q13UDEHCPU,
Q20UDEHCPU, Q26UDEHCPU
Q00UJCPU, Q00UCPU, Q01UCPU
Q02UCPU
Q03UDCPU, Q03UDECPU
Q04UDHCPU, Q06UDHCPU, Q10UDHCPU, Q13UDHCPU, Q20UDHCPU,
Q26UDHCPU, Q04UDEHCPU, Q06UDEHCPU, Q10UDEHCPU, Q13UDEHCPU,
Q20UDEHCPU, Q26UDEHCPU
10 - 4
Table10.3 Pre-start overhead time for interrupt programs
Fixed scan interrupt
(I28 to I31)
Without
With high-
high-speed
speed start
start
55
s
35
s
48
s
17
s
47
s
17
s
46
s
16
s
Table10.4 Program-end overhead time for interrupt programs
CPU module
Table10.5 Overhead time for fixed scan execution type programs
CPU module
Multiple CPU synchronous
interrupt (I45)
Without
With high-
high-speed
speed start
start
---
---
---
---
46
s
16
s
44
s
14
s
Without high-
speed start
Without high-
speed start
*1
Interrupt
(I0 to I15) from QI60 or
interrupt (I50 to I127) from the
intelligent function module
Without high-
With high-speed
speed start
start
76
s
55
60
s
31
54
s
22
52
s
22
With high-speed
start
s
s
28
15
s
s
26
7
s
s
26
7
s
s
26
7
With high-speed
start
s
s
92
60
s
s
73
25
s
s
73
24
s
s
72
23
s
s
s
s
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