Motion Controllers

Programmable Logic Controllers ( PLCS ) & Programmable Logic Controller

A programmable logic controller, or PLCS, is a software-based equivalent of a relay panel. A programmable logic controller ( PLCS ) is a general-purpose device. One programmable logic controller ( PLCS ) can be programmed to control a variety of machines, and programs can be changed easily for new jobs or changes in production routines.

Programmable logic controllers ( PLCS ) were once primitive devices capable of providing only minimal feedback about machine operation and status. The situation has changed drastically, however, with the advent of more powerful computer chips and new standards that give a programmable logic controller ( PLCS ) access to information throughout a manufacturing plant. Whereas the first programmable logic controllers ( PLCS ) generally provided only limited information about the status of relay contacts, new monitoring capabilities let the user know exactly what is happening on the floor.

Computers have expanded programmable logic controller ( PLCS ) power through greater speed and programming flexibility. Today's programmable logic controllers ( PLCS ) almost always have a port that permits a user to tie into a computer. Three developments have helped bring about this integration of Programmable logic controllers ( PLCS ) and computers: "smart" programmable logic controllers ( PLCS ) with their own microprocessors and memory, multitasking software, and local-area networks (LANs).

New software has enhanced the capability of computers, particularly personal computers to operate with programmable logic controllers ( PLCS ). Until recently, small computers were limited to performing one task at a time. If a computer was being used to check the status of a programmable logic controller ( PLCS ), it could not perform data analysis or generate a report at the same time. However, with the development of concurrent DOS (disk operating system), the simultaneous juggling of two different tasks can be done.

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Programmable Logic Controller & Programmable Logic Controllers ( PLCS ): AC Linear Motion Controller Information

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