Mitsubishi Electric MELSEC-Q Series Programming Manual page 151

Processing time required to switch SFC program from WAIT status to scan status
The processing time required to switch an SFC program from a WAIT status to a scan status is shown below. Although the
scanning time is extended by the amount of the processing time, this will not result in a watchdog timer error detection. No
system processing time is required when switching from a scan status to a WAIT status.
Switching time = (number of created blocks  Km) + (number of created steps  Kn) + (SFC program capacity  Kp) + Kq
Constant High Performance
Model QCPU
Q02CPU QnHCPU
Km 451.9s 194.7s
Kn 19.1s 8.2s
Kp 6.2s 2.7s
 
Kq
Constant Universal model QCPU
Q03UDVCPU Q04UDVCPU, Q06UDVCPU, Q13UDVCPU,
Q26UDVCPU
Km 9.6s 6.3s
Kn 0.6s 1.0s
Kp 0.7s 0.6s
Kq 8920s 5400s
5.2 Whole Program Processing of High Performance Model QCPU, Process CPU, Redundant CPU, Universal Model QCPU, and
Process Universal model QCPU
CPU
QnPHCPU Q00UJCPU, Q02UCPU
Q00UCPU,
Q01UCPU
194.7s 11.8s 11.2s
8.2s 3.8s 3.6s
2.7s 0.9s 0.8s

8893.5s 8470s
Q03UDCPU, Q04UDHCPU,
Q03UDECPU Q06UDHCPU,
Q04UDEHCPU,
Q06UDEHCPU
10.6s 4.4s
0.7s 0.5s
0.8s 0.7s
13970s 8070s
LCPU
L02SCPU, L02CPU, L06CPU,
L02SCPU-P L02CPU-P L06CPU-P
11.8s 11.6s 4.4s
3.8s 2.8s 0.5s
0.9s 0.8s 0.7s
8893.5s 8460.0s 8070.0s
5 SFC PROGRAM PROCESSING SEQUENCE
Q10UDHCPU,
Q13UDHCPU,
Q20UDHCPU,
Q26UDHCPU,
Q10UDEHCPU,
Q13UDEHCPU,
Q20UDEHCPU,
Q26UDEHCPU,
5
Q50UDEHCPU,
Q100UDEHCPU
7.3s
1.1s
0.7s
8100s
L26CPU,
L26CPU-P,
L26CPU-BT,
L26CPU-PBT
7.3s
1.1s
0.7s
8100.0s
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