Hi to All !


I'm trying to use PISDK inside my PHP page.

There is NO problems to link the PISDK COM object using the code line : $g_sdk = new COM('PISDK.PISDK');

There is NO problems to get the snapshot value from a specific pi point : $val = $pipt->Data->Snapshot-Value;

The issue happens when I try to get data using the ArchValue method from the $pipt object. See the example below :

$timestmap = new VARIANT(time(),VT_R8);

$pivl = $pipt->Data->ArcValue($timestamp,rtAuto);

The method retruns and error related to the VARIANT data type. It doesn't seem the same passed with a classic VB call.


Could someone give me help about this matter?

Thanks in advance.

Regards.

Marco

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