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Former Member
Nov 01, 2012 at 07:37 PM

Unexpected results from PCo tag retrieve query

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I am getting an unexpected response when doing a standard PCo Tag Retrieve Query.

I am retrieving current values from an OPC data source. The correct values are coming in, but they are not coming in all in the same row of the results. Every column of results has a value, but they are split across different rows.

See attached screenshot.

I just asked for the current values of all tags; why wouldn't they all be in the same row?

Is this a problem with PCo? Is there a solution, or do I have no choice but to code around this?

I have:
MII 12.2.3 Build(179) on a Linux server
which connects to
PCo 2.2 (2.203.1190.245 Patch level 32692) on a Windows 2008 server
which connects to
FactoryTalk Gateway, an OPC DA server (OPC-DA 2.05a) running on the same Windows 2008 server

Thanks in advance,

Greg

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