1f3b4efedd The Data Acquisition Processor can perform exceptionally high-speed or exceptionally low-speed PID control tasks beyond the capabilities of conventional controllers. If we wished, we could raise the effective maximum control effort by rescaling the input, output, and setpoint to avoid saturation. As an experiment, you might want to try setting parameter IV=200 to observe the change in response. The system and controller balance halfway between 0 and the setpoint – not a very acceptable result! Note that a sustained control effort is required to maintain systems such as this one at any nonzero operating point. Download .xls file (118 KB) or .zip file (27 KB) How to use The process is specified by the process gain, time constant and dead time (see the Process Model page for more details). The multipliers P, I and D specify the degree to which each of the correction terms affects the controller's output.
In a regulated system, an input signal called the setpoint specifies the desired response level at the system output. But engineers being engineers are always looking to tweak performance. Under DAPL, one Data Acquisition Processor can control one PID process loop or dozens of them with equal ease, replacing a rack full of specialized controller modules. The sample values are not used. We will be using the analogy of changing lanes on a freeway on a windy day. Figure 7. Connect output pin DAC1 to input pin S0, to route the output of the simulated system to the input of the PID control. Paul, MN 55110-0789 Phone Number: 651-426-4410800-872-8613 Fax Number: 651-426-4418 E-mail: salescsimn.com Copyright 2015 Control Solutions, Inc.
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