KATEGORI

4-13 Briefly describe the development history of PLC.

In industrial production, switch quantities are sequentially controlled, traditionally via pneumatic or electrical systems. In 1969, a control device using integrated circuits & programming was developed, becoming the first programmable controller (PC). Later, to avoid confusion with personal computers, it was renamed Programmable Logic Controller (PLC).

Butiran Kes

Answer: In the industrial production process, a large number of switch quantities are sequentially controlled. It performs sequential actions according to logical conditions, and controls interlocking protection actions according to logical relationships, as well as a large number of discrete data collection. Traditionally, these functions are realized through pneumatic or electrical control systems. In 1968, GM (General Motors) of the United States proposed the requirement to replace relay control devices. The following year, American Digital Corporation developed a control device based on integrated circuits and electronic technology, and for the first time used programming methods for electrical control. This is the first generation of programmable controllers, called Programmable Controller (PC).

After the development of personal computers (abbreviated as PC), for convenience and to reflect the functional characteristics of programmable controllers, programmable controllers were named Programmable Logic Controller (PLC). Now, PLC is still often referred to as PC.

Sebelumnya

4-12 What is a pressure sensor?

Seterusnya

4-14 What is the definition of PLC?

DIVERSITY OF EXPLORATION

OUTDOOR SCENE

However, those with sealed components, including motors, controllers, and connectors, can also be operated outdoors. Performance IC forklifts tend to be utilized in heavy-duty applications, such as brick and lumber yards, where larger capacity and performance is required to move the heavy loads.