Torgeek
Editing a PLC program normally refers to: making changes to an existing program. Preparing a PLC control process for start-up is called: commissioning.
- What is the meaning of PLC?
- What is the method of operation of PLC?
- What device is used to program a PLC?
- What are the basic concepts of PLC?
What is the meaning of PLC?
PLC stands for Programmable Logic Controller. They are industrial computers used to control different electro-mechanical processes for use in manufacturing, plants, or other automation environments.
What is the method of operation of PLC?
How Does A PLC Operate? There are four basic steps in the operation of all PLCs; Input Scan, Program Scan, Output Scan, and Housekeeping. These steps continually take place in a repeating loop. Energizes or de-energize all output devices that are connected to the PLC.
What device is used to program a PLC?
Personal computers are widely used for programming PLCs. A major advantage of using a computer is that the program can be stored on the hard disk or a CD and copies easily made. The computer is connected to the PLC by Ethernet, RS-232, RS-485 or RS-422 cabling.
What are the basic concepts of PLC?
Basic PLC operations
PLCs are made up of input points or modules, output points or modules, and a CPU (central processing unit). Inputs accept a wide range of analog and digital signals from different sensors/ field devices and work to convert them into logic signals that are CPU compatible.
