Workstation Status Tags

Workstation status driver tags can be associated with one or more analog input tags to access data that the driver obtains from the Windows Management Instrumentation (an API in the Windows operating system that enables devices and systems in a network to be managed and controlled).

 

Windows Vista requires additional security configuration before you will be able to access performance counter information (i.e. workstation status information).  By default, an application will run using the same privileges as the person who started it.  You can add the user account that the application runs as to the Performance Log Users group and then assign that group the right to "Log on as a Batch Job User". 

For further information, refer to http://technet2.microsoft.com/windowsserver2008/en/library/8620ccc5-b054-48b4-b276-9f6c716954a71033.mspx?mfr=true

To add a user to the Performance Log Users group:

1.   Click Start, click in the Start Search box, type compmgmt.msc, and then press ENTER.

2.   Expand System Tools, expand Local Users and Groups, and click Groups.

3.   In the list of groups, right-click Performance Log Users, and then click Add to Group.

4.   On the General tab, click Add.

5.   Type the name of the user you want to add, or click Advanced to search the directory for a user.

6.   When you have finished adding users, click OK, and click OK again to close the Performance Log Users property page.

To assign the Log on as a batch job user right to the Performance Log Users group:

 

1.   Click Start, click in the Start Search box, type secpol.msc, and then press ENTER. The Local Security Policy snap-in will open in Microsoft Management Console.

2.   In the navigation pane, expand Local Policies and click User Rights Assignment.

3.   In the console pane, right-click Log on as a batch job and then click Properties.

4.   In the Properties page, click Add User or Group.

5.   In the Select Users or Groups dialog box, click Object Types. Select Groups, and then click OK.

6.   Type Performance Log Users in the Select Users or Groups dialog box, and then click OK.

7.   Click OK again to close the property page.

 

 

The characteristics of the workstation status driver tag type are described in the table below.

Workstation Status Driver Tag Characteristics

Tag Browser Name: Workstation Driver

Database Table Name: WorkstationStatusDriver

Type: Driver Tag

Tag Group Memberships: Drivers

Log Enabled Variables:  see Communication Driver Log-Enabled Variables

Native Drawing Methods: Workstation Status Driver Tag Drawing Methods