Micromod RetroPAK: SLC Configuration Manual - Manual (Page 48)

Command Series Migration to MOD 30ML
Function Codes – Gallery Tutorial
CONFIGURING SCAN GROUPS AND LOOP COMPOUNDS
5. Let us first configure a scan group:
There could be as many as five scan groups in an instrument database. The control loops
(database blocks connected together) are grouped into Loop Compounds. The Loop
Compounds can be assigned to any of these scan groups. All the blocks and compounds in
a particular scan group will be executed at the same scan rate configured for the group.
This way you can have many loops in the database and they can be executed at different
rates depending on their priority and speed of the process they are controlling.
• Notice that all the four blocks on the screen are selected. Reset the screen by deselecting
them by clicking on a blank space.
• Double-click on the IF (Interface) block. The Interface block will open as shown in the
next figure: The block is displayed in a visual notebook format, with tabbed “pages”
containing the parameters for configuration. The Execution tab (page) of this block will be
displayed by default.
Figure 2 .14.
Interface Block
6. We will now configure a typical PID control loop in this tutorial.
Application1: Typical PID control in the Loop Command Controller CLC03/04:
The following diagram shows a typical single loop control with local Setpoint and uses the
following function codes:
Analog Input AI – Function Code 27
PID control – Function Code 19
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