Mitsubishi Electric MELSEC iQ-R Series User Manual page 533

Unicast mode (100Mbps)
■Calculation formula
Communication cycle interval [ns] = 
Cyclic transmission time [ns] = 
• 
: This value varies depending on whether a CC-Link IE TSN Class A slave station with the basic cycle or normal speed
c
cycle exists or not.
Item
When a CC-Link IE TSN Class A slave station with the basic cycle or normal
speed cycle does not exist
When a CC-Link IE TSN Class A slave station with the basic cycle or normal
speed cycle exists
*1
No. Calculation formula
A1: {(42  n1) + (16  n2) + ndm}  80 + (Sn-1)  5150 + 14000 + nh + nrp
1 A1 + A2
A2: {(42  en1) + (16  en2) + endm}  80
B1: {(42  n3) + (20  n4) + nds}  80 + 14000 + nh + nrp
2 B1 + B2
B2: {(42  en3) + (20  en4) + ends}  80
C1: {(42  n5) + (20  n6) + ndl}  80 + (Sn-1)  5150 + 14000 + nh + nrp
3 C1 + C2
C2: {(42  en5) + (20  en6) + ndl}  80
D  n7 D: (Sn-1)  5150 + 187440
4
5 Largest value of the maximum response times for the time-managed polling method for CC-Link IE TSN Class A slave stations with "Basic Period"
and "Normal-Speed" set
*1 The symbols in the table are as follows.
A1, B1, C1: Main module calculation formula
A2, B2, C2: Extension module calculation formula
For details on the maximum response time for the time managed polling method of a slave station, refer to the
user's manual of the slave station used.
Cyclic processing time [ns] = 
• 
: p1 + p2 + p3 + kp + kuu
p
■Variable
For each variable to be used, round it up to one decimal point before assigning to the calculation formula.
Name of variable Description
(ndm + (16  n2))/1488 or Sn, whichever is larger
n1
Sn  (RYb + RWwb) + Ln  (LBmb + LWmb)
n2
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
LBmb: Value of (Number of points of "LB setting" set in the master station)/11776 rounded up to the nearest integer
LWmb: Value of (Number of points of "LW setting" set in the master station)/736 rounded up to the nearest integer
((Total number of points of "RY setting" of main modules)/8) + ((Total number of points of "RWw setting" of main modules)  2)
ndm
+ ((Number of points of "LB setting" set in the master station)/8)  Ln + ((Number of points of "LW setting" set in the master
station)  2)  Ln
Sn Number of slave stations
Ln Number of local stations
Switching hub delay time  Number of switching hubs connected to the network
nh
Switching hub delay time: 160000
nrp When "Network Topology" under " Basic Settings" is set to " Line/Star": 0
Sn  nhs
n3
nhs: Value of (nds + (20  n4))/(1488  Sn) rounded up to the nearest integer
Sn  (RXb + RWrb) + Ln  (LBxmb + LWxmb) + Sn
n4
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
LBxmb: Value of (Total number of points of "LB setting" excluding master station)/(11744  Ln) rounded up to the nearest
integer
LWxmb: Value of (Total number of points of "LW setting" excluding master station)/(734  Ln) rounded up to the nearest integer
+ 
. Round up values of
c p
c
or 340000, whichever is larger.
p
*1
and 
that are less than 1s.
c p
Calculation formula
The largest value in items No.1 to No.3 + No.4
No.1 + (the value in No.2 or No.3, whichever is larger) + No.4 + No.5
Appendix 6 CC-Link IE TSN Processing Time
A
APPX
531