Mitsubishi Electric MELSEC iQ-F Series - Page 285

APPX
Appendix 6 Processing Time
283
A
No. Processing Detail Loop
1
Loop
2
Branch
Yes No
1 Start Check the stations in "Network Configuration Settings" for the
master station in the order of the station number column to
assign stations with "CC-Link IE TSN Class A" whose
"Communication Period Setting" is "Low-Speed" to groups.

2 Loop as many times as the number of
stations
(i=1; ithe number of stations to set;
i++)
Check device stations with the station number column of 1 to 60
in "Network Configuration Settings" for the master station one by
one.
No.2 to
No.11

3 Are "CC-Link IE TSN Class A" and
"Communication Period Setting" set to
"Low-Speed"?
In "Network Configuration Settings" of the master station, check
the "CC-Link IE TSN Class" and "Communication Period
Setting" of the i-th station. If "CC-Link IE TSN Class A" and
"Communication Period Setting" are set to "Low-Speed",
perform the processing.
 No.4 No.11
4 Calculate the values for cyclic data size
(DMsi) sent from the master station to a
device station and cyclic data size
(DSsi) which the master station
receives from a device station.
If DMsi and DSsi are defined as the sizes of cyclic data sent
from the master station to a device station and cyclic data which
the master station receives from a device station, they are
calculated by the following formulas:
DMsi = (HBL  n1i) + (16  n2i) + ndmi
DSsi = (HBL  n3i) + (20  n4i) + ndsi

5 Loop to the maximum number of groups
(j=1; j60; j++)
Up to a total of 2K bytes can be assigned to a group, and
determine which group number (1 to 60) is assigned to i-th
station starting from 1.
No.5 to
No.10

6 Does it satisfy GMsj + Dmsi2044? If GMsj is defined as the total value of the data sizes of the cyclic
data sent from the master station to device stations assigned to
the jth group, determine whether the following condition is met.
GMsj + DMsi2044
No.7 No.10
7 Does it satisfy GSsj + DSsi2044? If GSsj is defined as the total value of the data sizes of the cyclic
data that the master station already assigned to the jth group
receives from device stations, determine whether the following
condition is met.
GSsj + DSsi2044
No.8 No.10
8 Update the data sizes (GMsj and GSsj)
of assigned groups.
If the conditions No.6 and No.7 are both met, update the values
of GMsj and GSsj.

9 Assign the group number j to the i-th
station.
When the conditions No.6 and No.7 are both satisfied, the group
number j is assigned to the i-th station.

10 End of the No.5 loop  
11 End of the No.2 loop  
12 Determine the maximum value J of the
group numbers.
After assigning a group number to all "CC-Link IE TSN Class A"
and "Communication Period Setting" stations with "Low-Speed",
the maximum value J of the group number is obtained.

13 Value of n = J  4
rounded up to the
nearest integer
The following formula is used to determine the number n.
Value of n = J  4 rounded up to the nearest integer

14 End  