APPX
Appendix 6 Processing Time
287
A
Unicast mode (1Gbps)
Calculation formula
Communication cycle interval [ns] =
c
+
p
or 250000, whichever is larger. Round up values of
c
and
p
that are less than
1s.
Cyclic transmission time [ns] =
c
•
c
: This value varies depending on whether a CC-Link IE TSN Class A device station with the basic period or normal speed
period exists or not.
For details on the maximum response time for the time managed polling method of a device station, refer to
the user's manual for the device station used.
•
p
: Cyclic processing time [ns] is calculated by p1 + p4. Round up values that are less than 1s.
Variable
For each variable (excluding Mg) to be used, round it up to one decimal point before assigning to the calculation formula.
The parts enclosed in double quotation marks (" ") in the description are the setting values for "Network Configuration
Settings".
Item Calculation formula
When a CC-Link IE TSN Class A device station with the basic period or
normal speed period does not exist
(The largest value in items No.1 to No.5) + No.6
When a CC-Link IE TSN Class A device station with the basic period or
normal speed period exists
((The value in No.1 or No.2, whichever is larger) + (the value in No.3 or No.4,
whichever is larger), or the value in No.5, whichever is larger) + No.6 + No.7
Calculation formula
No.1 A1+A2 Calculation formula for main module A1: {(50 n1) + (16 n2) + ndm} 8 + (Sn - 1) 830 + 14000 + nh
Calculation formula for extension module A2: {(50 en1) + (16 en2) + endm} 8
No.2 B1+B2 Calculation formula for main module B1: {(30 n1) + (16 n2) + ndm} 4 + (1661 n1) + (Sn - 1) 830 + 14300 + nh
Calculation formula for extension module B2: {(30 en1) + (16 en2) + endm} 4 + (1661 en1)
No.3 C1+C2 Calculation formula for main module C1: {(50 n3) + (20 n4) + nds} 8 + 14000 + nh
Calculation formula for extension module C2: {(50 en3) + (20 en4) + ends} 8
No.4 D1+D2 Calculation formula for main module D1: {(50 n5) + (20 n6) + ndl} 8 + (Sn - 1) 830 + 14000 + nh
Calculation formula for extension module D2: {(50 en5) + (20 en6) + endl} 8
No.5 50000
No.6 En7
No.7 Largest value of the maximum response times for the time-managed polling method for CC-Link IE TSN Class A device stations with the basic
period or normal speed period set
Name of variable Description
n1 Value of (ndm + (16 n2))/1488 rounded up to the nearest integer or Sn, whichever is larger
n2 Sn (RYb + RWwb)
RYb: Value of (Total number of points of "RY Setting" of main modules) / (11776 Sn) rounded up to the nearest integer
RWwb: Value of (Total number of points of "RWw setting" of main modules) / (736 Sn) rounded up to the nearest integer
ndm ((Total number of points of "RY Setting" of main modules)/8) + ((Total number of points of "RWw Setting" of main modules) 2)
Sn Number of device stations
Ln Number of local stations
nh Industrial switch delay time Number of industrial switches connected to the network
Industrial switch delay time: 50000
*1
n3 Sn nhs
nhs: Value of (nds + (20 n4))/(1488 Sn) rounded up to the nearest integer
n4 Sn (RXb + RWrb) + Sn
RXb: Value of (Total number of points of "RX Setting" of main modules) / (11744 Sn) rounded up to the nearest integer
RWrb: Value of (Total number of points of "RWr Setting" of main modules) / (734 Sn) rounded up to the nearest integer
nds ((Total number of points of "RX Setting" of main modules)/8) + ((Total number of points of "RWr Setting" of main modules) 2) + 8
Sn
n5 Value of (ndl + 20 n6)/1488 rounded up to the nearest integer
n6 (ndl-8)/1468+1
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