Advantages of PLC

PLC is a control system that is compatible with many control system designs in today’s industries, which are not only output models but can accommodate more complex control systems.

PLC is a solid-state component that is designed to replace conventional relay functions and has a microcontroller principle so that it can be filled with programs. PLC is used for control and operation of machines in the manufacturing process. The use of a PLC has several advantages including:


Conventional panel controls use relays and additional timers or system relationship changes to respond to and modify or additional specifications, change lanes, transfer products and others. Whereas the PLC only uses program changes that have been written on memory.

High standard equipment:

Conventional panel controls have been produced in a way that each unit has its own specifications. This requires a long manufacturing time and difficulty in maintenance. But using PLC standardization control panel can be obtained.

Ease of equipment:

PLC provides a function that can check the state of facilities and programs so that if there are problems or errors it is possible to make repairs quickly compared to other control units. Input and output indicators are quickly and easily known on a system. Output configuration that uses a type of relay plug-in.

Low power and compact dissipation

Most components contain high-ability ICs in a lightweight and compact form. Therefore it is possible to make a compact control panel so that it has a relatively low power dissipation.

Apart from the above advantages, there are also several other advantages of PLC can be described as follows:

  • Short project implementation time.
  • Easier modifications without additional costs.
  • Project costs can be calculated accurately.
  • Training in mastering techniques faster.
  • Extensive control application.
  • Various types of controls can be applied.
  • Standard hardware controls.
  • Can accept severe industrial environmental conditions. Operates normally under conditions of temperature, humidity, voltage fluctuations and heavy noise.


Instrumentation Engineer

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