Utah-94-721002-System-Manual.pdf - 第79页
System Manual lñÑçêÇ=fåëíêìãÉåíë=mä~ëã~=qÉ ÅÜåçäçÖó== mä~ëã~ä~Ä póëíÉãNMM Similarly, existing Names, Passwords and Access Levels can be edited. In addition, existing entries can be removed from the list by sel ecting a n…
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3) Select the Edit Users button. The Edit User List is displayed.
4) To add a new user, click on the Name and Password cells then enter the required
details (remember that text entered into the Password cell is case sensitive). Clicking
on the Access Level cell will display a scrollable drop-down list with the following
options:
Option Result
Quit Exit from the drop-down list.
View_Only All Facilities automatically disabled.
User A set of Facilities can be selected, see Step 5.
Production See sub-section 5.4.7 (page 5-18).
Maintenance A special set of Facilities is automatically enabled. Note that this access level
has its own recipes and steps for maintenance and does not allow access to
process recipes and steps, or allow the system log to be viewed.
Manager All Facilities automatically enabled.
Select one of the access levels for the new user.
Operating Instructions
UC Davis 94-721001 Issue 1: March 06 Page 5-12 of 52 Printed: 22-Mar-06, 10:42
System Manual lñÑçêÇ=fåëíêìãÉåíë=mä~ëã~=qÉÅÜåçäçÖó== mä~ëã~ä~ÄpóëíÉãNMM
Similarly, existing Names, Passwords and Access Levels can be edited. In addition,
existing entries can be removed from the list by selecting a name and then selecting
the Delete button.
5) The Facilities enabled for ‘User’ (selected in Step 4) can be edited by selecting the
Facilities button while the cursor is in the name field for that user. This will display
the Edit User Facilities dialogue box.
WARNING
BEFORE ENABLING FACILITIES, CONSIDER CAREFULLY WHICH FACILITIES WILL BE
SELECTED FOR THE PERSON USING THE ‘LOG ON’ NAME. FOR EXAMPLE, ALLOWING
AN INEXPERIENCED USER ACCESS TO THE ‘TOLERANCES’ PAGE WOULD ALLOW THE
USER TO CHANGE TOLERANCES WHICH COULD POSSIBLY RESULT IN SYSTEM
MALFUNCTION AND EXPOSE THE OPERATOR TO HAZARDOUS SITUATIONS.
6) Click on the appropriate checkboxes to enable the facilities available to the selected
name (9 indicates enabled). Click on the OK button to accept the entered data and
exit.
Note that the enabled facilities are dependent on the name and not on the access
level, e.g. two people logged on as users can have different sets of facilities enabled.
Operating Instructions
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System alerts are displayed when PC 2000 detects an event that requires the attention of the
user. Each alert is automatically categorised depending on the nature of the event and the
response required by the user. The category of the event can range from a warning indicating
that a service parameter is out of tolerance to a process abort indicating that a process
setpoint has been out of tolerance for so long that the process cannot be completed. A
typical system alert is shown in Fig 5.2.
System
A
lert
b
anner
System Alert
dialogue
Fig 5.2: Typical system alert
The alert is displayed as a banner in the menu bar at the top of the screen with an associated
dialogue in the main screen area. Note that more than one alert can be active at the same
time, each requiring action by the user in turn.
There are three categories of alert indicated by the colour and text displayed in the banner
and dialogue:
Blue Warning e.g. water flow low.
Yellow Hazard – not currently used.
Red Process abort, e.g. high-reflected RF power.
A user logged on at any access level can close the alert dialogue, but only a user logged on as
a system manager can clear the alert banner from the menu bar. The dialogue options are:
Accept button: System Managers only. Clear the alert and log it.
Next button: View the next alert.
Cancel button: System Manager only. Clear the alert; do
not log it.
Operating Instructions
UC Davis 94-721001 Issue 1: March 06 Page 5-14 of 52 Printed: 22-Mar-06, 10:42