The Programmable Logic Controller, PLC is basically a programmed interface in between the field input elements and the final control element. Advantages of PLC Reduced space : PLCs are completely solid state devices and hence are extremely compact in comparison to hard-wired controller where electro-mechanical devices are used. Higher Life and Reliability : These […]
Programmable Logic Controller
Programmable Logic Controller
A Programmable Logic Controller can be defined in many ways. It can be defined as a program controlled electronic equipment with a reprogrammable memory for storing a set of commands which is used for executing exact tasks like logical, arithmetic, timer, counter, and furthermore controlling different processes or machines with the help of analog/digital through digital […]
PLC blocks
The various PLC blocks and their functions are as follows : 1. In-put Unit : It acts as an interfacing link between the Input instructions and the Central processing unit. The analog input generated by the sensor/transducer/limit-switch etc are fed to the input unit. The input unit then performs the conversion of this analog i/p […]