Micromod Micro-DCI: 53IT5100B Micro-DCI 4-Channel Indicator Totalizer - Manual (Page 26)

53IT5100B Indicator/Totalizer
INSTRUCTION MANUAL
Figure 3-6. Alarm Summary
3.2 Alarm Overlay
Any one of the six operator displays can have the upper quadrant of the display overlaid with an ALARM
indicator. An alarm indication warns of variation changes that exceed tolerance limits; the process may
require immediate attention. In the five illustrations of Figure 3-7, the process variable exceeded Alarm Limit 1
for ANI1. The five illustrations show how the alarm state would manifest itself on each operator display. The
alarm display for Dual Bar Graph (Chs. 3&4) is not illustrated, as the alarm banner appears in the identical
manner as shown in the illustration for Dual Bar Graph (Chs. 1&2).
In the Quad Bar Graph (Chs. 1-4) illustration of Figure 3-7, the alarm banner blinks from normal to reverse
video alternately with the ANI-1 graph scale (second from left). The ANI-1 graph scale does not appear in
reverse video, but disappears and reappears on the display. In the Dual Bar Graph (Chs. 1&2) illustration of
Figure 3-7, the alarm banner blinks from normal to reverse video alternately with the ANI-1 graph scale (on
the right of the display). The ANI-1 graph scale does not appear in reverse video, but disappears and
reappears on the display. The alarm banner in the Dual Bar Graph (Chs. 3&4) operator display (not shown)
would alternately blink from normal to reverse video; however, graph scales for channels 3 and 4 would be
unaffected.
In the Quad Process Digital Readout illustration of Figure 3-7, the alarm banner blinks from normal to reverse
video.
In the Quad Totalizer Digital Readout illustration of Figure 3-7, the alarm banner blinks from normal to reverse
video.
In the Alarm Summary illustration of Figure 3-7, the alarm banner and ANI-1 tag name blink from normal to
reverse video independent of one another.
The alarm banner blinking is stopped by pressing the Mode () push button on the horizontal keypad; the
alarm banner remains on the display, but does not blink, until the process variable returns to a value within
the alarm limit (passed dead band).
22