ABB ScreenMaster RVG200 Operating Instructions Manual page 32

ScreenMaster RVG200
Paperless recorder
Note.
1. Current values
The current value is the latest instantaneous value and its update rate is not affected by the
recording sample rate.
If the current value is displayed in red recording has been stopped for that channel via a digital
signal – see Section 7.8.1, page 80.
Traces are displayed only when recording is active for that process group. If recording is set to
Stop, the traces continue to be displayed for up to one sample period and are then turned off.
2. Trace pointers and channel traces
The trace pointers and channel traces are displayed in the color assigned to each channel. Trace
pointers may be disabled during configuration – see Section 7.8.2, page 82.
3. Alarm event, operator message and electronic chart signature annotations
Alarm event, operator message and electronic chart signature annotations are not shown on the
chart unless enabled – see Chart Annotation on page 43 and Section 7.8.2, page 82.
If Alarm event annotation is enabled and an alarm becomes active, an alarm event icon is
displayed at the point at which the alarm occurred, together with the alarm time and tag, for
example:
If more than one alarm occurs in the same sample period:
– and a second alarm on a channel becomes active, its icon is added behind the first.
– and more than one operator message is active (maximum 24), a second icon is added behind
the first.
– the new alarm event icons appear to the left of earlier icons.
– the time and tag of the oldest alarm (right-most icon) only is displayed.
4. Alarm Status
– Flashing alarm event icon – alarm active and unacknowledged
– Continuous alarm event icon – alarm active and acknowledged
If alarm in
any
status bar – see item
unacknowledged, the icon is surrounded by a flashing border (
30
11:58:00 1.1A High Level
process group is active, the Global Alarm status icon (
any
o
in see Fig. 4.5, page 28. If active alarm in
any any
).
4 Operation
) is displayed in the
process group is
OI/RVG200-EN