Micromod MOD: 30ML Display Script Guide - Manual (Page 17)

MOD 30ML Display Guide
Display Basics
2 -11
• manage the order in which displays appear on the front face
• define how alarms are indicated and annunciated
• set password protection for the controller.
In order for a display to appear on the front face when the tag key is pressed, its Display
Tag name must be in the Display List of the DIF block. If there are multiple displays for
a control strategy, when the tag key is pressed displays will appear in the order in which
they are listed in the Display List.
Selecting the “New” icon on the Display Tag List toolbar causes an empty box to appear
in the Display Tag List window. The first Display Tag is then typed in the box. To add a
second display, select New and type the second display name. Display Tags must be
entered EXACTLY as they appear in the relative Display Block; this list is case sensitive.
Display to use at power-up indicates which display will be presented when power is first
applied to the controller. This can be the default DEVICE display, the PREVIOUS
display (in which case the controller shows the last display before power was removed),
or USER. If USER is selected, any Display Tag name from a Display Block may be
entered, and this will always be the power-up display.
REMOTE DISPLAY INPUT is used to force a display to appear on the front face based
on an input to the DIF block. For example, a digital event or an alarm could cause a
specific operating display to appear. The desired display tag name must be in the Display
List in order for this to occur. When the input condition is present, normal navigation via
the TAG key is disabled. This is discussed further in Chapter 4.
The remaining DIF block entries deal with how various alarms are to be displayed on the
front of the instrument and password protected access to configuration and tuning
displays. Refer to IB-1800R-APP for details on these entries.
2.3.4 Tune List Blocks
A Tune List (TL) Block contains a list of attributes accessible as tunable parameters by
one or more display blocks. It does not actually do anything except provide the
information used by the display block. Configuration of Tune List blocks is similar to
Display Blocks; that is, there is an Input List and an Input Formats menu. However, no
actual connections are made to Tune List blocks; attributes to be contained in Tune Lists
are selected using the Browser method.
Tune List Blocks can be used to create Tuning Displays for P,I,D parameters; provide
information for commissioning purposes; create recipe selection screens; and many other
applications.
Tuning displays are invoked from Display Blocks by the TUNE Statement (see Event
Scripts, TUNE Statements). More than one display block can use a Tune List, but Tune
Lists cannot be “nested”. For information on connecting more than one Tune List to a
display, see the example in Part 2 of this book.