dynamically generate Fieldpoint IO points

[lmd2]

I developed some code back in LabVIEW 6 that used FP OPEN.vi, FP Create tag.vi, etc.
I used to read commResource, device name, and channel from a database
Now in LabVIEW7 it looks like you just use a FPread.vi with a list of Fieldpoint IO points
How do I take the list of resources from the DB table, and convert that list into a list of Fieldpoint IO points (variant data type)? And do I truly no longer need FPOpen, FPClose, FPCreate_Tag, etc????

[Ames]

Imd2,

You are correct, with newer versions of the FieldPoint software you do not need to use FP Open.vi, FP Create Tag.vi, or FP Close.vi in order to do a write or a read. However, those VIs are still available in the advanced palette. The FP Read.vi and FP Write.vi just use those VIs internally if they haven't been already called.

In a case like yours where you are building the I/O point from strings you should use the FP Open.vi and FP Create Tag.vi to create the I/O point for the FP Read.vi or FP Write.vi just like you did previously.

Ames
Applications Engineering
National Instruments

[lmd2]

That didn't seem to work, it was much wierder.
First I noticed that when you run "FP Read (Float Array -IO).vi" as a stand-alone, you can only set the control to read up to one complete module. Also the FieldPoint IO Point Out indicator shows the channel greyed out.
When I tried to use the legacy "FP Open, FP Create Tag" VIs, I could get readings to a point, but if I tried to read multiple modules I would get an invalid tag error (at this point I may have been able to use the Val(Sgnl) property node, but I didn't know that yet).
I found an example subVI called GetFPIAKConfig2.vi
I modified a copy to remove the tags for "All" and "Channel 8" (the coldjunction channel)
This outputs an array of all my configured channels
Then as I strip each tag off the arra
y I set the Val(Sgnl) property which seems to get rid of the invalid tag error.
Thanx for your time
lmd2