PCo 2.1 and Proficy iFix using OPC DA

[Former Member]

I'm finding some interesting behavior when trying to access Proficy iFIX HMI / SCADA with PCo 2.1 using OPC DA.

PCo Version 2.1.0.55

iFIX version 5.1

SCADA OS: Windows XP Pro, SP3

MII Version 12.1.5 Build(99)

What happens is that when I do a tag list in a tag query, instead of getting the tags, I get the propertes of the tags in the tag list, so what I think PCo's OPC client is doing is resolving to the lowest level of the tag list, which of course would be a tags individual properties. iFIX UDS does not exhibit this behavior.

I've tried a variey of settings in PCo, including "Force Flat Namespace" to no avail. Is there an option to set how far down the tag list drills?

Here is my setup, I know most of these settings have nothing to do with my problem but here they are for completness:

Source System Type: OPC DA

OPC Server Name: OPC Data Access 2.0 for ifix

Specification: DA 2.05A

Acquistion Mode: Synchronous

Read Source: PCoCache

Force Flat Namespace: False

Synchronous Read Source: Device

Acceptable Data Quality: Good

Activate Items: Both

Agent:

No Subcription Items

Communication: MII

Tag Query Cache Mode: Cache:

[former_member196557]

What happens if you try to add some Tags using the Subscription tab on the Agent Instance? Do you get the same behavior in the OPC Browser in PCo?

- Steve

[Former Member]

I added 2 tags, One Analog and one Text to subscriptions and no difference. When you browse the tag in Pco you get a tree view, SCADA -> Tag Type -> Tag Name -> Tag Property.

[Former Member]

Update:

Upgrading to PCo 2.1 SP2 did not solve the issue.

[andy_macaleer]

Try the UDS 4.0 OPC connection to iFix and see if you get the same result as the OPC PCo 2.1 connection and see if you get the same result.