Run as a Service Under a Specific User Account
- Last UpdatedSep 12, 2025
- 1 minute read
By default, Plant SCADA operates under the "NT SERVICE\Citect Runtime Manager" virtual service account when running as a service.
In some circumstances, this will not be appropriate as a specific user (or type of user) may be required to support particular functionality at runtime. For example:
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An OPC DA server uses specific DCOM settings that are not compatible with the local system accounts or the "NT SERVICE\Citect Runtime Manager" virtual service account.
An OPC DA client will also be impacted by this incompatibility with DCOM.
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The PS Direct driver requires that the runtime user is part of the administrators group.
If you are faced with this type of situation, you may need to specify a particular user account under which the Plant SCADA service will operate.
To specify the user account that operates the Plant SCADA service:
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Open Services in the Microsoft™ Computer Management console (for more information, refer to the operating system documentation provided by Microsoft).
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Locate Plant SCADA Runtime Manager in the list of services.
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Double-click on the service to open the Plant SCADA Runtime Manager Properties dialog.
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Go to the Log On tab, and select the This Account option.
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Enter the name and password for the account that will operate the service.