Micromod MOD: 30ML Display Script Guide - Manual (Page 19)

MOD 30ML Display Guide
Display Basics
2 -13
VCI AlarmInput Result PAD
Figure 2 .9.
Process Alarm
Display Block -
Display Menu
The Display Menu controls how the alarm will be indicated on the controller display.
Alarms can be displayed numerically and graphically. When BAR is selected for Bar
Format, the bar shows the alarm input with an intensified segment indicating the trip
point. When DEV is selected, the bar displays alarm input as a deviation from a zero
deviation point, which is indicated by an intensified segment at midscale. A second
intensified segment identifies the alarm trip point; if the trip condition is DEVIATION, a
third intensified segment identifies the second alarm trip point.
It is possible to immediately go to an operating display from the alarm display when the
TAG key is pressed. For example, a Low Level alarm in a boiler control system can be
directly connected back to the Level Controller operating display so the operator can
correct the alarm condition. If “Return to previous display” is selected, the TAG key
takes the operator back to the display that was on the front face prior to accessing the
alarm display. If “Go to display with this tag” is selected, the return path from the alarm