Admin Table of Contents
What is the basic principle of PLC?
The basic principles of PLC operation are discussed. The core modules of an industrial-control system are examined: the analog input function, analog output functions, the distributed control (fieldbus) interface, digital inputs and outputs (I/Os), the CPU, and isolated power.
How does a programmable logic controller work?
The programmable logic controller will process the given information (inputs), execute the instruction from the program, and deliver the results (outputs) based on the provided information and written logic. PLCs operate in a repeating loop once the user determines the inputs and outputs.
Why programmable logic controller is required in the industry?
They are used in many industries to monitor and control production processes and building systems. Once programmed, the PLC will perform a sequence of events triggered by stimuli referred to as inputs. It receives these stimuli through delayed actions such as counted occurrences or time delays.
What are the 5 components of a PLC?
The common components of the PLC unit are discussed here:
- Processor:
- Rack/Mounting:
- Input Assembly:
- Output Assembly:
- Power Supply:
- Programming Device/Unit:
What are the basic elements of PLC Mcq?
Basic parts of the PLC: CPU (central processing unit) Programming device. Input and output module.
Where are programmable logic controllers used?
Areas where programmable logic controllers are applied PLCs are used in various applications in industries such as the steel industry, automobile industry, chemical industry and the energy sector. The scope of PLCs dramatically increases based on the development of all the various technologies where it is applied.
What is the importance of PLC programming in consumer and industries?
PLCs help to improve the productivity of automation in several industries by lowering the amount of power consumed by working machines, controlling systems, keeping records and helping to redistribute the available workforce to increase productivity.
What is the basic advantage of PLC?
Flexible in Nature: One model of PLC can be used for different operations as per requirement. Easy to install and troubleshooting: In hard wired relay based systems, installation time is more as compared to the PLC based control panels.
Which one is the correct sequence for PLC operation?
Operating cycle of PLC There are four steps in PLC operations. They are (1) Input scan, (2) Program scan, (3) Output scan, and (4) Housekeeping.