Try turning the last parameter to your OPCItemWrite call into a string. Some servers are sensitive to the actual type of the data in the variant. I think you might have tried that though.

Someone else had a similar problem, he started out with this code (which gave the error):

use Win32::OLE::OPC;
use CGI qw(:all);
$opcintf = Win32::OLE::OPC->new('OPC.Automation','hci.phd');
$group = $opcintf->OPCGroups->Add('sanitize_mode');
$items = $group->OPCItems();
$reset_item = $items->AddItems("6440SAN2.PV", 999);
$reset_item->Write('SANITIZE');

[download]

and this is the code once he got it working:

use Win32::OLE::OPC;
use CGI qw(:all);
$opcintf = Win32::OLE::OPC->new('OPC.Automation','hci.phd');
$group = $opcintf->OPCGroups->Add('san_grp');
my $items = $group->OPCItems;
$items->AddItem(  '6440SAN2.PV', 0 );
$item = $items->Item(1);
$item->Write('NORMAL');

[download]

You don't show how you are creating the groups, that might have something to do with it.

In reply to Re: Win32::OLE error by Anonymous Monk
in thread Win32::OLE error by nonnonymousnonk

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