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APPX
Appendix 6 Processing Time
Cyclic transmission delay time
This section shows how to calculate the following cyclic transmission delay time.
• The time between the transmission source CPU module device turning on or off and the transmission destination CPU
module device turning on or off
• The time between data setting in the transmission source CPU module device and the data being stored in the transmission
destination CPU module device
In "Basic Settings" of the master station, when "Communication Period Setting" of the communication destination in "Network
Configuration Settings" is set to an option other than "Basic Period", multiply the LS (communication period interval) by the
multiplier corresponding to the set option, which is specified in "Multiple Period Setting" under "Communication Period
Setting". In this case, the multiplier is determined according to "CC-Link IE TSN Class" in "Network Configuration Settings" as
follows:
• For "CC-Link IE TSN Class B": The multiple specified in "Multiple Period Setting" in "Communication Period Setting" under
"Basic Settings"
• When "CC-Link IE TSN Class A" and "Communication Period Setting" are "Normal-Speed": The multiple specified in
"Multiple Period Setting" in "Communication Period Setting" under "Basic Settings"
• When "CC-Link IE TSN Class A" and "Communication Period Setting" are "Low-Speed": The multiple n specified in
"Multiple Period Setting" in "Communication Period Setting" under "Basic Settings"
The number n can be found in 'Information for device station cyclic transmission' (Un\G44608).
Moreover, stations with "CC-Link IE TSN Class A" where "Communication Period Setting" is set to "Low-Speed" are grouped
by the sizes of cyclic data, and the number n is determined by the number of the groups.
The following table shows the algorithm for determining the number n.
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