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Chapter 5. About the SI7 I/O Driver 59

The dialog box allows the user to select one of these accounts when registering the

SI7 driver to run as a service:

FIXIOUser Account — uses the FIXIOUser account to log on the I/O Server. This

conventional account uses a hard-coded password and has the necessary

privileges to log on as a service. You should not modify this account if one or

more 7.x drivers use this as the logon account when running the I/O Server as

a service. If you do modify this account, those drivers will not be able to start

as a Windows service.

The FIXIOUser account may not be created if it does not conform to your

local IT department’s security policies. If this account does not exist, you

must select one of the other two options.

NOTE: If you previously ran the I/O Server as a service without incident, you

should continue to run it using the FIXIOUser account.

System Account — uses the local system account to log on the I/O Server. This pre-

defined account is useful when your local IT department’s security policy

requires password expiration.

This Account — uses an account specified by the user to log on the I/O Server. This

account is useful if you need to specify a domain account. The account used

here must be an existing account with both Administrator and Logon as a

Service privileges to run the server as a service. To determine if the account

has Administrator privileges, refer to the manual provided with your operating

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Siemens SIMATIC NET Dokumentacja Strona 69