Welcome Guest ( Login | Register )



All times are UTC - 7 hours [ DST ]



Post new topic Reply to topic  [ 1 post ] 
Author Message
 Post subject: Pull groups and speed of communication
PostPosted: Wed Dec 16, 2015 7:10 am 

Joined: Thu Aug 16, 2012 9:33 am
Posts: 26

Offline
Hallo

Im working on a project where i have to update data in a mysql database every 0,5s.

What i do is i set a tag in the plc to > 0, and do a value_change event check in IX. Which initiate the sql query. This works fine.

My problem is:
I have no sense on how often the tags are updated. When asking support Denmark 6 month ago. I was told that the pull groups did not actually work. That i should keep my tags "high" for at least 1s. When i asked what about the pull groups which goes down to 100ms, i was told that is was a bug, and i couldn't trust that.

My question is:
Is this "bug" true?
Is it still a "bug" after 2.2?
Anyone have any experience with this, and could shed some light on this subject?


 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC - 7 hours [ DST ]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron