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DAQFactory Guru Blog

Posted On: 15-May 08
Edit boxes in HMI software
Using edit boxes on the main pages of your HMI screens is a bad idea. It doesn't matter whether you use DAQFactory or another tool. The problem is feedback.


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Features:

PID

The screen components available within DAQFactory provide many different ways for you to manually control outputs. However, to have DAQFactory automatically control your outputs requires other DAQFactory tools.


PID loops are the standard for controlling closed loop systems. They allow you to control a process variable, such as temperature, by adjusting an output. The PID algorithm is a tried and true method used throughout science and industry.


While you certainly could develop a PID algorithm with DAQFactory sequences, we have saved you the trouble and did it for you. Within DAQFactory you can create as many PID loops as you need and eliminate the need for hardware controllers, saving you money. Like most of the DAQFactory tools, setting up a PID loop is as simple as creating a new loop and filling in a few boxes with the desired parameters. If you need help determining the P, I and D parameters, DAQFactory can autotune them for you.