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1 exercise: loading and using a pid with display – Micromod MOD: 30ML Display Script Guide User Manual

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MOD 30ML Display Guide

Display Basics

2 -4

2.2.1 Exercise: Loading and using a PID with display

This exercise shows how to load the PID-100 compound. All default values are used.
The resulting display will look similar to the diagram in the next figure. By holding down
the Scroll key, tuning parameters can be accessed.

Figure. 2 .2.

Typical PID Loop
display

Exercise:

Typical PID Loop
and display



Action



Comment

1. From the Gallery, export the ML_PID

compound. The analog input, input
function, PID, alarm, display, tune list, and
output blocks appear in the workspace.

This must be loaded within a Loop
Compound in a MOD 30ML.

3. Open the Display (DISP) block and

position the cursor in the Display Tag field
showing PID-100

Do not confuse this with the Block Tag
field at the top of the menu. The Block
Tag field serves only to identify the block.
Each display must have a unique name;
this may be the same as the block tag for
easy reference. Display blocks in pre-
defined compounds are usually re-
named by the user according to the
specific application.

4. In the Display Tag field, type in a tag

name of your choice.

It is often helpful to make the Display
name the same as the loop tag name,
such as LIC-100.

Enter the tag name again in the Initial

Display Data field for Line 1, enclosed in
double quotation marks. For example,
“LIC-100”. Or you can type the keyword
DISPTAG (no double quotes).

Any text enclosed in double quotes in the
Initial Display Data fields will be
displayed as entered.

5. Close the block using OK