Micromod MOD: 30MLTraining Manual - Manual (Page 227)

17 Sequence Display Lab
17.1 Foreword
One of the features that set the MOD 30ML apart from other multiloop controllers is the ability to
construct custom displays for many types of applications, including sequential control.
17.2 Objectives
This lab is a continuation of the Supervisory Message lab and builds on that database. We will add
a display block to the BATCH compound and configure it to allow the operator to initiate the batch,
view the current step, the elapsed time in the step, and the batch temperature.
The steps in creating any custom display are:
1. Design the display:
a. What will appear on each line (1 through 6) and what is the source?
b. What will each bar represent?
c. Will the text on any of the lines change based on a change in the source variable?
If YES, a State Table is required.
d. Will any of the keys perform a different function than standard?
If YES, a Display Script is required.
e. Will the information displayed on any of the lines be driven by different sources,
or change based on an event such as a key being pressed?
If YES, a Display Script is required.
2. Build any State Tables that are required
3. Configure the Display Block
a. Define which inputs will be shown on the screen
b. Define how each input will look
c. Connect any inputs coming from other blocks
d. Write Display Script if required
4. Add the display name to the Display List in the DIF (Display Interface) Block
5. Set up the overall display parameters in the DIF block
The diagram on the following page shows a simplified flowchart of custom display building:
17 - 1