Step By Step Procedure for Programming PLC using Ladder Logic These function blocks include timers, counters, strings, comparators, numeric, arithmetic, bit-shift, calling functions, and so on. All the necessary functions and functional blocks are available in the standard library of each PLC software. Some of the standard programming languages of PLC are basically of two types, which are further sub-divided into several types, which are as follows:Ĭompared with text based languages, graphical languages are preferred by many users to program a PLC due to their simple and convenient programming features. Some manufacturers have common programming languages and some others have dissimilar. But the PLC programming language is varied depending on the manufacturers. Each and every PLC manufacturer has its own dedicated software to program and configure the PLC hardware. In present industrial automation sector, there are several leading PLC manufactures that develop typical PLC’s ranging from small to high-end PLC’s.
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