Micromod MOD: 30ML Controller Operation and Maintenance Training Manual - Manual (Page 23)

3 - 1
3 Single Loop Template Lab
3.1 Foreword
Many processes involve flow control loops, whether they are in the food, pharmaceutical,
chemical, pulp & paper, mining or virtually any of the industries served by MODCELL
Multi-loop Processors. This lab is designed to help you learn simple PID loop
configuration from the MOD 30ML front face.
3.2 Objectives
In this lab we will design a simple flow loop with a 4-20mA signal from a dP transmitter,
a square root extractor, a PID control loop and a modulating control valve. The P&ID for
this loop looks like this:
Figure 3 .1.
Sample Flow PID
Loop
F E
F T
F Y F C
F C V
After completing this lab, you should know how to configure a MOD 30ML database
using ViZapp Configurator for a simple PID Control loop.