Doc #: L-2600-1023 Page 16 Rev. 02
3.1.7.4 Key and Password Mode
The “Key and Password” mode requires the user to have the RUN/PROG key, user name, and user
password. Operation is basically the same as the Password only mode, except that in addition to
entering the password the user must switch the RUN/PROG key to the PROG position.
3.1.8 Access Control Operation
To gain access control the user must use one of two means or a combination of these two means. These
means are the RUN/PROG key or the user password system.
3.1.8.1 RUN/PROG Key Switch Operation
The RUN/PROG key switch is located on the lower right side of the System 2600. This is a two-
position switch. The key is removable in the RUN position only. If the RUN/PROG key switch is
being used as a means to access the restricted items, the switch must be turned to the PROG position.
When the RUN/PROG key switch is switched to the PROG position, the press will Top Stop and
stroking will be prohibited until the switch is returned to the RUN position.
When operating in the Key Only mode the key switch is the only means available to access the restricted
items. All restricted items are accessible when the RUN/PROG key switch is switched to the PROG
position.
When operating in the “Key or Password” mode, the key switch is one of the means available to access
the restricted items. All restricted items are accessible when the RUN/PROG key switch is switched to
the PROG position.
When operating in the “Key and Password” mode, the key switch and password must be used to access
the restricted items. In this mode, the user will be granted access only to the restricted items that have
been assigned to him.
3.1.8.2 Password System Operation
Figure 7 displays an example password entry sequence. This example shows the steps necessary to
change a numeric value but is typical for password entry for all restricted items.
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