Description
1C31127G01 Emerson redundant system output module
thereby controlling external devices or circuits.
1. Introduction
In industrial automation control systems, PID controllers and switch controllers are two common control strategies. They each have unique working principles, application scenarios, and advantages and disadvantages. This article aims to explore in detail the differences between PID controllers and switch controllers, and compare and analyze them from multiple aspects such as working principles, application scenarios, and performance characteristics, so that readers can have a deeper understanding of these two control strategies and make more reasonable choices in practical applications.
2、 The working principle and characteristics of PID controller
working principle
A PID controller (Proportional Integral Derivative Controller) is a bias based feedback control algorithm consisting of three control terms: proportional (P), integral (I), and derivative (D). It measures the difference (i.e. deviation) between the output value of the controlled object and the expected value, and then processes the deviation based on proportional, integral, and derivative control terms to obtain the output of the controller. The working principle of PID controller is based on error feedback adjustment, which continuously adjusts the control quantity to gradually approach the set value of the system output.
responsible for processing signals from on-site sensors or driving actuator actions. For example, they may need to cooperate with devices such
as BANNER travel switch T30UIPB to receive their transmitted position signals; Or by controlling components such as Burkert solenoid valve 00131421, the on/off of fluid media can be precisely managed.
these modules integrate more complex logic processing capabilities. The core task of a pressure switch is to detect whether the pressure
has reached a preset threshold and output a switch signal. Its function is highly specific and fixed. And modules 1C31127G01 and 1
C31219G01 have the ability to comprehensively judge multiple such switch signals and transmitter signals (such as transmitter 1066-P-HT-60),
and output complex control instructions according to internal logic.
