10/4/2023 0 Comments Picture of ladder logic program![]() ![]() ![]() Operations performed by digital equipment, such as programmable controllers, are based on three fundamental ladder logic functions – AND, OR, and NOT. Programmable logic controllers (PLCs) make decisions based on the results of these kinds of logical statements. Now, you will see how statements that combine two or more of these binary variables can result in either a TRUE or FALSE condition, represented by 1 and 0, respectively. ![]() The binary concept shows how physical quantities (binary variables) that can exist in one of two states can be represented as 1 or 0. PLC Ladder Logic Functions for Electrical Engineers - Beginners (on photo: SIEMENS PLC Simatic S7-300 credit: .uk)
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