Recently we installed QuickOPC on a client (Windows 7) machine. We followed the Manual Application Deployment steps outlined in the COncept document except that we installed the necessary files (during the Production Installation step) for both NET and COM since we plan to use both (VS.NET applications and COM via PHP in IIS).
Both our NET and COM implementations are failing to obtain any data events from the server.
The error returned when we attempt to do a simple ReadItemValue request is as follows:
exception 'com_exception' with messages 'Source: OPCLabs.EasyDAClient.5.2 Description: Access is denied.' in 'C:\SPET\Modules\Support\test.php:6 Stack Trace: #0 C:\SPET\Modules\Support\test.php(6): com->ReadItemValue('','ICONICS.Simulat...','010017001103_40...')#1 {main}'
I briefly looked through the Concept document but it does not discuss any security settings that need to be set to enable EasyDAClient functionality.
The PHP page is being served on the same physical machine as the OPC Server (i.e. the read request is a local request not a remote request) and we have, temporarily, turned off the Windows firewall to ensure that it is not preventing the functionality.
Does anyone know what settings I should check to try to resolve this issue?
