Explain Ladder Logic and its advantages
For creating and representation a program a Ladder logic programming language is used via ladder diagrams that relies on circuit diagrams. It is mainly used for creating programs or software for Programmable Logic Controllers (PLCs), used for industrial applications.
Initially the language evolved with being a technique for documenting the construction and design of relay racks in producing and processing control with each relay rack given with a symbol on the ladder diagram that is device connected under them with vertical rails. You will find a rung in a ladder look alike called as relay symbols.
It is not a procedural or an imperative language but a rule-based language. All the rungs in the ladder symbolizes a rule. These rules execute immediately and simultaneously when implemented to relays and various electromechanical devices. If PLCs have the program applied then the rules have sequential execution through software with a continuous loop. With quick execution of loops the effect still exist simultaneously and immediately within the required time tolerance. The PLC capabilities is used during programming as the electromechanical nature of the devices connected to it and not keep up with the instructions that some rules are skipped and the devices cannot cope up with it.
In the industrial settings of the programming PLCs this Ladder Logic is widely used for sequential control of manufacturing processes and required operations. For programming simple and critical systems this programming language is used for reworking hard-wired systems into new programmable ones. In highly sophisticated and automation systems this programming language is used especially in electronics and car factories.
A personnel without programming backgrounds can easily perform and this is the concept of ladder logic as it uses the conventional and familiar symbols of engineering programs. This advantage is quickly negated since producers of PLCs offer ladder logic programming systems offers ladder logic programming system with their products. It does not have the same symbols and convention as the ones made for other models of PLCs from other producers. The programming system is for specific models and there is no easy way of porting the models and it must be rewritten.
Advantages of Ladder Logic
1.Familiar Programming Language
2.Cost-Effective Equipment
3.Reliable Parts
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