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QuickOPC VBScript ASP example script not working
18 Mar 2024 02:00 #12640
by Kyle.Oshima@caltrol.com
Replied by Kyle.Oshima@caltrol.com on topic QuickOPC VBScript ASP example script not working
Not sure I follow request for test account setup -- please can you provide detailed instruction for setting up desired test account setup?
As noted in prior posts, IIS 10 for most part is default install, with only classic ASP support also installed (ASP and ISAPI Extensions Application Development features installed as described in referenced article)
IIS Manager has only default application pool DefaultAppPool defined (see attached screenshot)
Following speculation that IIS might not have permissions to directory where QuickOPC COM components are installed, added DefaultAppPool to security properties of "OPC Labs OPC Studio 2024.1" install folder and contents (see attached screenshot) but get same error result.
Please advise. Thanks.
As noted in prior posts, IIS 10 for most part is default install, with only classic ASP support also installed (ASP and ISAPI Extensions Application Development features installed as described in referenced article)
IIS Manager has only default application pool DefaultAppPool defined (see attached screenshot)
Following speculation that IIS might not have permissions to directory where QuickOPC COM components are installed, added DefaultAppPool to security properties of "OPC Labs OPC Studio 2024.1" install folder and contents (see attached screenshot) but get same error result.
Please advise. Thanks.
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17 Mar 2024 21:00 #12638
by Kyle.Oshima@caltrol.com
Replied by Kyle.Oshima@caltrol.com on topic QuickOPC VBScript ASP example script not working
As requested, please find attached screenshot of QuickOPC "ReadItem.Main.vbs" VBScript WSH example script run from command line.
Assume output is expected result, seemingly pointing to problem to do with IIS?
Also, please find attached screenshot of Windows Server 2022 Standard, Server Manager, IIS 10 install -- as noted in prior posts, 8 of 10 IIS options installed were automatically selected by default when IIS role enabled, plus 2 Application Development options additionally installed to enable classic ASP.
Are additional IIS options required for using EasyDVClient thru classic ASP HTML5 script?
As noted in initial post, IIS would be running on HMI machine for industrial DCS operating in regulated industry, so is preferrable to only install those options required for QuickOPC to work properly for use case.
Any insight is appreciated. Thanks.
Assume output is expected result, seemingly pointing to problem to do with IIS?
Also, please find attached screenshot of Windows Server 2022 Standard, Server Manager, IIS 10 install -- as noted in prior posts, 8 of 10 IIS options installed were automatically selected by default when IIS role enabled, plus 2 Application Development options additionally installed to enable classic ASP.
Are additional IIS options required for using EasyDVClient thru classic ASP HTML5 script?
As noted in initial post, IIS would be running on HMI machine for industrial DCS operating in regulated industry, so is preferrable to only install those options required for QuickOPC to work properly for use case.
Any insight is appreciated. Thanks.
Attachments:
Please Log in or Create an account to join the conversation.
16 Mar 2024 20:00 #12636
by Kyle.Oshima@caltrol.com
Replied by Kyle.Oshima@caltrol.com on topic QuickOPC VBScript ASP example script not working
As requested, with IIS ASP-->Debugging Properties-->Send Errors To Browser
setting set to True, please find attached QuickOPC "ReadAndDisplayValue_VBScript.asp" VBScript ASP example script copied to IIS Manager default web site error displayed in MS Edge browser
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16 Mar 2024 01:30 #12634
by Kyle.Oshima@caltrol.com
Replied by Kyle.Oshima@caltrol.com on topic QuickOPC VBScript ASP example script not working
As far as can tell, classic ASP support on IIS should be installed (see attached screenshot of Server Manager for Windows Server 2022 showing ASP and ISAPI Extensions Application Development features installed as described in referenced article) Also as noted in initial post, simple "test.asp" script set up in IIS Manager default web site does display in MS Edge no problem (see attached screenshots) so assume classic ASP on IIS is properly set up otherwise "test.asp" script should error?
That said, also as noted in initial post, unlike "test.asp" script, QuickOPC "ReadAndDisplayValue_VBScript.asp" VBScript ASP example script copied to IIS Manager default web site displays in MS Edge browser error (see attached screenshot)
Appears essentially only substantive difference between scripts are QuickOPC elements creating object of type EasyDVClient class and .ReadItemValue() call on that object.
Beyond standard install of QuickOPC download "Setup-OPCLabs-OpcStudio-2024.1-Windows-Full.exe" (all options installed except for Excel Connector as Excel is not installed on machine) which did not post any install errors, QuickOPC documentation is unclear whether additional install steps are needed for using EasyDVClient thru classic ASP HTML5 script.
Is QuickOPC install incomplete, which could explain why VBScript ASP example script does not work? Is there procedure for verifying QuickOPC is installed properly?
Any insight is appreciated. Thanks.
That said, also as noted in initial post, unlike "test.asp" script, QuickOPC "ReadAndDisplayValue_VBScript.asp" VBScript ASP example script copied to IIS Manager default web site displays in MS Edge browser error (see attached screenshot)
Appears essentially only substantive difference between scripts are QuickOPC elements creating object of type EasyDVClient class and .ReadItemValue() call on that object.
Beyond standard install of QuickOPC download "Setup-OPCLabs-OpcStudio-2024.1-Windows-Full.exe" (all options installed except for Excel Connector as Excel is not installed on machine) which did not post any install errors, QuickOPC documentation is unclear whether additional install steps are needed for using EasyDVClient thru classic ASP HTML5 script.
Is QuickOPC install incomplete, which could explain why VBScript ASP example script does not work? Is there procedure for verifying QuickOPC is installed properly?
Any insight is appreciated. Thanks.
Attachments:
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