APPX
Appendix 9 Processing Time
925
A
SFC program switching
This section describes the processing time required to switch the SFC program from the standby status to the scan execution
type.
• Switching time [s] = (Number of blocks created Km) + (Number of steps created Kn) + (SFC program capacity Kp) +
Kq
*1 For the programmable controller CPU with firmware version "30" or earlier and for the Process CPU with firmware version "12" or earlier,
the values are as follows.
R04CPU, R04ENCPU, R08CPU, R08ENCPU, R08PCPU, R16CPU, R16ENCPU, R16PCPU, R32CPU, R32ENCPU, R32PCPU:Km =
3.97, Kn = 0.41, Kp = 0.39
R120CPU, R120ENCPU, R120PCPU:Km = 3.97, Kn = 0.41, Kp = 0.32
When the SFC program capacity is the following models or conditions, the processing time required to switch the SFC
program from the standby status to the scan execution type will be fixed.
When the SFC information device is set, the processing time required to switch the SFC program from the standby status to
the scan execution type will become longer.
Constant Constant value
R00CPU, R01CPU, R02CPU Other CPU modules
Km 7.90 7.90
*1
Kn 1.85 1.55
*1
Kp 0.21 0.21
*1
Kq 2550 2500
Model Condition Processing time (constant value)
• The R04CPU, R04ENCPU, R08CPU, R08ENCPU, R16CPU,
R16ENCPU, R32CPU, and R32ENCPU with firmware version
"30" or earlier
• R08PCPU, R16PCPU, R32PCPU
28K steps or less 14ms
• The R120CPU and R120ENCPU with firmware version "30" or
earlier
• R120PCPU
48K steps or less 18ms
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