User defined tags

I'm rebuilding a panelview app and have a question.

Control Logix will be the platform,

I have a screen that shows data for the last 10 event snapshots, 8 points of data each line. I built the screen using individual tags for each data point (80 tags) but I have heard that I should use a user defined tag instead. I am having trouble making it and can't really find an example that shows what I am trying to achieve.

thanks

Refer to Chapter 2 in this reference manual

Thanks,

Thats not a manual we had around the shop, and they do not allow net access. Thank god for alternate means of reaching out.

Ah, one of those places. Surely it's only a matter of time before places like that die out for lack of access to information and we can all get on with living in the 21st century

You don't necessarily need to use a UDT to store data like that; an ordinary 2-dimensional array sounds like it would work fine and it's even easier do to indexing and searching.

Let's say you have eight floating-point values for each Event. Make a 2-dimensional array tag called EventLog[10,8].

The first index value will be 0-9 and that will be the Event number.
The second index value will be 0-7 and that will be the Data Log Entry number.

So if you want to display the third entry from the tenth Event, the tag address would be EventLog[9,2].