471
APPENDICES
A
Appendix 3 CPU Module Processing Time
Appendix 3.2 Time required for each processing included in scan time
(2) Instruction execution time in END processing
This is the processing time of the DUTY instruction in END processing.
The user timing clock (SM420 to SM424 and SM430 to SM434) specified with the DUTY instruction is turned
on/off during the END processing.
(3) Instruction execution time
Instruction execution time is the time required for all instructions used in the program to be executed.
For the processing time required for each instruction, refer to the following.
MELSEC-Q/L Programming Manual (Common Instruction)
When calculating instruction execution time, add the overhead time given in the following tables. Two kinds of
overhead time (pre-start and program-end) need to be added to interrupt programs.
(a) Pre-start overhead time for interrupt programs
CPU module
Processing time in END processing
When set to 1 When set to 5
Q00UJCPU, Q00UCPU, Q01UCPU 0.0120ms 0.0140ms
Q02UCPU 0.0050ms 0.0055ms
Q03UD(E)CPU 0.0043ms 0.0046ms
Q04UD(E)HCPU, Q06UD(E)HCPU, Q10UD(E)HCPU, Q13UD(E)HCPU,
Q20UD(E)HCPU, Q26UD(E)HCPU, Q50UDEHCPU, Q100UDEHCPU
0.0041ms 0.0045ms
Q03UDVCPU, Q04UDVCPU, Q04UDPVCPU, Q06UDVCPU,
Q06UDPVCPU, Q13UDVCPU, Q13UDPVCPU, Q26UDVCPU,
Q26UDPVCPU
0.0040ms 0.0042ms
CPU module
Fixed scan interrupt
(I28 to I31)
Multiple CPU
synchronous interrupt
(I45)
High-
speed
interrupt
(I49)
Interrupt
*1
(I0 to I15)
from QI60 or interrupt
(I50 to I127) from the
intelligent function
module
Without
high-speed
start
With high-
speed start
Without
high-speed
start
With high-
speed
start
With high-
speed
start
Without
high-speed
start
With high-
speed
start
Q00UJCPU, Q00UCPU,
Q01UCPU
55µs 35µs --- --- --- 76µs 55µs
Q02UCPU 48µs 17µs --- --- --- 60µs 31µs
Q03UD(E)CPU 47µs 17µs 46µs 16µs --- 54µs 22µs
Q04UD(E)HCPU,
Q06UD(E)HCPU,
Q10UD(E)HCPU,
Q13UD(E)HCPU,
Q20UD(E)HCPU,
Q26UD(E)HCPU
46µs 16µs 44µs 14µs --- 52µs 22µs
Q50UDEHCPU,
Q100UDEHCPU
73µs 16µs 71µs 14µs --- 79µs 22µs
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