Micromod MOD: 30ML Display Script Guide - Manual (Page 85)

MOD 30ML Display Guide
Application Examples
5.8 Example 8: Recipe Selection
This example shows how to construct displays for selecting recipes from the front face.
The strategy involves a pressure control loop and a temperature control loop. The
pressure and temperature control loops each have their respective PID display. A third
display is used for recipe selection. The recipes differ in pressure setpoint and
temperature setpoint; these values are stored in the Display Script of the Recipe Display
Block. The next figure illustrates the blocks used in the strategy. Although this example
shows only three recipes with two variables each (time & pressure), up to 255 recipes
could be configured in this manner with many more variables per recipe.
Figure 5 .24.
Strategy Blocks,
recipe selection
The Pressure and Temperature compounds are based on the PID_RSP Smart Symbol
found in the Project Gallery. The PID blocks are configured for Remote Setpoint; the
connections for changing the pressure and temperature targets are made from the Recipe
Display Block to the Remote Set Point Input (RSPI) of each PID block.
It is also possible to construct more elaborate recipes using Sequence and / or RampSoak
blocks, and select them through the front panel display. Tune Lists can also be used for
recipe data and selection, with the additional feature of password protection.
In this example, three inputs are configured in the Recipe Display Block:
• PRESSURE – configured as a floating point input with initial value of 0. Then an
external connection is made to the Pressure PID Block setpoint.
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