APPX
Appendix 6 Processing Time
169
A
Link scan time
The following is the formula to calculate the link scan time. (When "Link Scan Mode" under "Supplementary Cyclic Settings" in
"Application Settings" is "Sequence Scan Asynchronous")
LS = {Np + (Ns
Ka) + (Nt
Kb) + Kc + Kd}
1000 +
p [ms]
• The calculated result by this formula is rough standard values. For the actual link scan time, check the
parameters and the control details that are used.
• When the operation cycle over or the synchronization cycle over occurs, review the processing details or
reduce the number of stations that are used.
Item
Communication mode
Normal
High-speed
Np
{(Total number of points of "RX/RY Setting" set in "Network Configuration Settings" of "Basic Settings")
4 + (Total
number of points of "RWw/RWr Setting" set in "Network Configuration Settings" of "Basic Settings")
4}
(High-speed:
0.0073, Normal: 0.039)
Ns
Number of actually connected stations which are motion mode
Nt
Number of actually connected stations which are other than motion mode
Ka
45
26
Kb
24
13
Kc
420
300
Kd
The sum of the processing time factor (following values)
of all safety stations in the network. 0 when the safety
communication function is not used
50.1
(Sa - 1) + 9.5
(Sb - 1) + Sc
Sa: Number of safety communication settings with local
stations
Sb: Number of safety communication settings with remote
device stations and motion mode stations
Sc: When including local station: 0, When including
remote device station: 30, When including motion
mode station: 120
The sum of the processing time factor (following values)
of all safety stations in the network. 0 when the safety
communication function is not used
5
(Sa - 1) + 0.1
(Sb - 1) + Sc
Sa: Number of safety communication settings with local
stations
Sb: Number of safety communication settings with remote
device stations and motion mode stations
Sc: When including local station: 10, When including
remote device station: 10, When including motion
mode station: 80
p
Positioning operation time
Summary of Contents for RD77GF16
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