Micromod Micro-PWC: 53PW6000 MicroPWC Operators Manual - Manual (Page 107)

Micro-PWC OPERATOR’S MANUAL
Events 93
9.4.3 Pause/Resume the Event Historian
The operating mode of the Event Historian display determines the behavior of the display when a new
event is stored in the Event Historian. Two modes are available:
• Update mode
• Pause mode
The Event Historian display initially appears in the Update Mode by default. The Pause and Resume
options on the Event Historian menu bar are used to select the operating mode of the display. When the
display is in Update Mode, the Pause option is available and the Resume option is stippled out. Con-
versely, when the display is in Pause Mode, the Resume option is available and the Pause option is stip-
pled out. Pause Mode is useful when reviewing older messages, to prevent them from scrolling down and
off the display.
When the display is in Update Mode:
• Pause is available on the Event Historian display menu bar, Resume is stippled out.
• The event appearing on the top line is the most recent event that occurred.
• When a new event is received, it is inserted on the top line. Older messages will scroll down.
When the display is in Pause Mode:
• Resume is available on the Event Historian display menu bar, and Pause is stippled out.
• The event on the top line may not be the most recent event that occurred.
• No new events are received and displayed.
Scrolling the Event Historian display (by using the
U P and
D OWN A RROWS or
P AGE U P and
P AGE D OWN com-
mands) also puts the display in Pause Mode. Click Resume to return to Update Mode (simply scrolling to
the top of the event list does not return the Event Historian to Update Mode).
9.4.4 Filtering Messages in the Event Historian
Event messages in the Event Historian display are automatically filtered by the filtering mask configured for
the user currently logged in on the Micro-PWC. The user can further filter events by Message Class, Mes-
sage Type, Device, and Time. To access the filtering mechanism, click the Filter option which appears in
the Event Historian display menu bar. The Event Historian Filter window (
Figure 9-5 ) will be displayed.