Omron NX Series User Manual page 157

Maintaining Concurrency in the Tag Data in a Tag Set
To maintain concurrency in the values of multiple tags in a tag set, the tags (variables with a Network
Publish attribute) must satisfy all of the following conditions.
a. The tags must be assigned to the same tag set (connection).
b. A refreshing task must be set for network variables assigned to the tags, and the refreshing task
must be the same for all the tags in the tag set.
• Setting Refreshing Tasks for Tags (Network Variables)
Concurrency of the tags in the tag set is maintained.
NJ/NX-series Controller
Refreshing task
Value of variable
Variable a 100 10
Variable b 100 10
Variable c 100 10
• Not Setting Refreshing Tasks for Tags (Network Variables)
Concurrency of the tags in the tag set is not maintained.
NJ/NX-series Controller
Refreshing task
Value of variable
Variable a 100 → 10
Variable b 100 → 10
Variable c 100 → 10
NX-series EtherNet/IP Unit User's Manual (W627)
Tag set
Connection
Variable a
Variable b
Tag data links updated.
Variable c
EtherNet/IP
Tag set
Connection
Variable a
Variable b
Tag data links updated.
Variable c
EtherNet/IP
9 Tag Data Link Functions
NJ/NX-series Controller
Refreshing task
Tag set Value of variable
Variable d
Variable e
Variable f
NJ/NX-series Controller
Refreshing task
Tag set Value of variable
Variable d
Variable e
Variable f
10
The values of the
10
tags in the tag set
are refreshed at
the same time.
10
The
values of
Refreshed.
10
tags in
the tag
set are
Refreshed.
10
not
refreshed
Not refreshed.
100 at the
same
time.
9-13
9