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Fixed PLC:
The fixed plc containd each and every component in a single unit that contains CPU,input/outputs sections and powersupply the number of inputs and outputs cannot be expanded.
Modular PLC:
Slot tgether to build up a system. modules like CPU,input/output module.
it's main advantage is that the number of inputs and outputs can be expanded .they are directly fixed to back panel and they are usually arranged in rack or rail mounted inside a large cabinet for protection and security
Rack PLC:
this is similar to mudular plc's they are arranged in rows on a rack inside cabinets.they do not plug into each other but plug into a standard communication slot in the rack .all the slots are connected by standard network or bus so that they all communicate with each other.This is expandable system..
هل تحتاج لمساعدة في كتابة سيرة ذاتية تحتوي على الكلمات الدلالية التي يبحث عنها أصحاب العمل؟