This chapter describes the procedures required to set up a PC running Windows 2000/XP as an operator workstation. These procedures will configure the system to display screens using the Microsoft Internet Explorer so that real time information may be presented to the operator.
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title | Wndows Configuration |
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In general, it is advisable to update the workstation to the latest sets of Windows updates. The easiest means to maintain these updates is simply to visit http://www.windowsupdate.com using Internet Explorer on the client workstation and follow the instructions there. In particular, in order to use a workstation to connect to the TSENTRY HMI system the workstation must have the following items installed: Latest operating system service pack for the workstation Microsoft .NET Framework v2.0
Operating system service packs are typically listed as high-priority recommended updates, and thus will be presented for installation by default. The .NET Framework however is typically listed as an optional update, and therefore must be explicitly selected from the Windows Update web site: Open http://www.windowsupdate.com Once the Windows Update control has been installed, click on the
Custom button; the Windows Update control should then scan your system to look for available updates Once the scan is complete, along the left-hand side of the screen should be a set of types of updates; choose Software, Optional Select/check the Microsoft .NET Framework 2.0 Click on
Review and install updates and following the remaining on-screen instructions Alternatively, the .NET Framework 2.0 can be downloaded directly from Microsoft at the following address: http://www.microsoft.com/downloads/details.aspx?FamilyID=0856eacb-4362-4b0d-8edd-aab15c5e04f5&DisplayLang=en |
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title | Tsentry Screen Explorer Configuration |
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The Tsentry Screen Explorer, also known as Texplore, can be installed on a client simply by executing the (click Run when prompted). The latest installer is also available for download from the TSENTRY web site at http://www.tsentry.com. Further documentation about the use of Texplore is currently in development. |
DCOM Configuration
DCOM configuration is only required if the workstation will be connecting to the OPC server (GsmOpcSvr) on the host TSENTRY system. Since the GsmOpcSvr process was replaced by the ProbeSvr process in TSENTRY v4.10.00 (July 2007) as the communications server for exchanging data between the TSENTRY host system and the Texplore HMI client, the following is not required for most installations.
The instructions for configuring DCOM depend on the workstation’s operating system.
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title | DCOM Configuration on Windows 2000 |
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The following must be completed to configure DCOM on a Windows 2000 client: Start | Run | dcomcnfg | OK Select Default Properties Check Enable Distributed COM for this computer Set Default Authentication Level to (None). This selection turns off security on callbacks to your machine so that the server can write data. Otherwise screens run from this machine will be able to connect to the server but data will never be returned to the screen. Apply | OK to close dcomcnfg
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title | DCOM Configuration on Windows XP/2003 |
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The following must be completed to configure DCOM on a Windows XP or Windows 2003 client: Start Component Services Open the Control Panel Click on Administrative Tools Click on Component Services
Set general DCOM properties: Expand Component Services under the Console Root folder Expand Computers Right-click on the My Computer icon mentioned above and choose Properties Choose the Default Properties tab Check Enable Distributed COM on this Computer Set Default Authentication Level to (None). This selection turns off security on callbacks to your machine so that the server can write data. Otherwise screens run from this machine will be able to connect to the server but data will never be returned to the screen. Set Default Impersonation Level to (Identify). Choose the COM Security tab Click on the Edit Limits… button under Access Permissions Add Everyone to the Group or user names box While Everyone is highlighted verify that both Allow Local Access and Allow Remote Access Click OK to close the Access Permissions window Click on the Edit Limits… button under Launch and Activation Permissions Add Everyone to the Group or user names box While Everyone is highlighted verify that both Allow Local Activation and Allow Remote Activation are checked (Allow Local Launch and Allow Remote Launch may or may not be checked; these permissions are not required for OPC) Click OK to close the Launch and Activation Permissions window OK to save and close the My Computer Properties
Close Component Services The system must be restarted for these changes to take effect
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