Tag: Automation
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How PLC Systems are Protected from Plant Voltages
Internally a PLC typically operates at 5 V dc. The external devices such as solenoids, limit switches, motor starters, etc. operate at voltages up to 110 V ac. The mixing of these voltages will cause irreparable damage to the PLC … Read more
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Actuators as Automation Components
An actuator is normally controlled by the controller. The actuator, in turn, changes the output of an automated process. The actuator in an automated process may in actual fact be several actuators, each of which provides an output that … Read more
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Adaptive Control System
Adaptive control system adjusts to changes and modifies its parameters to fit the prevailing circumstances. The adaptive control system is based on the use of a microprocessor as the controller. Such a device enables the control mode and the control … Read more
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The Role of Forms in Robotics: Creating Smart Data Inputs for Automation
Introduction Hello and thank you for joining us here in the exciting realm of robots and automation! Prepare yourself for the “forms” notion, which is the ultimate game-changer that will determine the efficiency and smarts of operations. Prepare to have … Read more
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5 Control Techniques – Their Features & Applications
We have a number of control theories that have been put forward on how to design control laws to accomplish various purposes. Generally they can be classified as follows: Classical Control This control technique deals with the behaviour of dynamical … Read more
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Features of a Serial Interface
In a serial interface, the data is sent 1 bit after the other on a single wire. Serial data is classified as being either synchronous or asynchronous. Synchronous data require that the data bytes be sent as group in a … Read more
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Analog vs. Digital Controllers
Analog signals pass continuously through a full range of values for example a measuring device converts the process variable (PV), say temperature, into a signal corresponding to this temperature. Each temperature value corresponds to a value of the electrical signal. … Read more
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Position Control System using a Microprocessor-Based Controller
Consider the following figure illustrating a position control system employing a microprocessor-based controller with parallel ports: Figure 1.0 Microprocessor-based controller with parallel ports The system above has one output port and three input ports (each port has its own address). … Read more