18 DCOM Settings with the dcomcnfg System Program

18.6.3“Identity” Tab

Description of the Settings

The settings made in the “Identity” tab specify the account to be accessed to check the permissions of the user of the object. Here, various settings are possible:

S“Interactive User”

S“The Launching User”

S“This User”

Table 18-2

Setting

Meaning

 

 

“Interactive User”

The account of the currently logged on user is used.

 

If, however, no user uses the computer, there is no interactive user

 

and the COM object cannot be created. If you operate without a

 

logged on user, use the “ThisUser” setting. “Interactive user” is the

 

default setting for the OPC Server for SIMATIC NET.

 

 

“The Launching User”

The account of the user that launched the OPC client is used.

 

This user must then also have the required permissions; in other

 

words, must be entered in the “Security” tab. The user must also

 

have the default permissions entered for the group of users on this

 

computer; in other words, must belong to the group of users.

 

This mode must not be used with the OPC server for SIMATIC NET,

 

since the OPC server would otherwise be started more than once by

 

different user accounts and this is not permitted.

 

 

“This User”

The account of a specified user is used. This user must have the

 

required permissions; in other words, must be entered in the

 

“Security” tab. The user must also have the default permissions

 

entered for the group of users on this computer; in other words, must

 

belong to the group of users.

 

This setting must be used to operate the OPC server for SIMATIC

 

NET (logged on users).

 

S Multiterminal Mode

 

You should also use the setting described here “This user” for

 

multiterminal mode on the PC station.

 

 

Commissioning PC Stations - Manual and Quick Start

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Siemens C79000-G8976-C156-07 quick start Identity Tab, Setting Meaning