ABB    PFSK152 3BSE018877R1 信号集中器板 利用编程器将用户程序送入PFSK152的存储器

PFSK152 3BSE018877R1   信号集中器板

PFSK152编程器是PLC的重要外围设备。利用编程器将用户程序送入PFSK152的存储器，还可以用编程器检查程序，修改程序，监视PFSK152的工作状态。常见的给PFSK152编程的装置有手持式编程器和计算机编程方式。在可编程序控制器发展的初期，使用专用编程器来编程。pfsk152小型可编程序控制器使用价格较便宜、携带方便的手持式编程器，大中型可编程序控制器则使用以小CRT作为显示器的便携式编程器。专用编程器只能对某一厂家的某些产品编程，使用范围有限。手持式编程器不能直接输入和编辑梯形图，PFSK152只能输入和编辑指令,但它有体积小，便于携带，可用于现场调试，价格便宜的优点。

Programmable Logic Controller (PLC) is a digital arithmetic controller with a microprocessor for automation control, which can load control instructions into memory at any time for storage and execution. The programmable controller consists of functional units such as CPU, instruction and data memory, input/output interface, power supply, and digital to analog conversion. In the early days, programmable logic controllers only had the function of logical control, so they were named programmable logic controllers. Later, with continuous development, these computer modules with simple functions had various functions, including logic control, timing control, analog control, multi machine communication, and so on. The name was also changed to Programmable Controller, However, due to the conflict between its abbreviation PC and the abbreviation of Personal Computer, and due to habitual reasons, people still often use the term programmable logic controller and still use the abbreviation PLC.
The programmable logic controller E used in industry is equivalent to or close to a compact computer host, and its advantages in scalability and reliability make it widely used in various industrial control fields. Whether in computer direct control systems, centralized decentralized control systems DCS, or fieldbus control systems FCS, there is always a widespread use of various types of PLC controllers. There are many manufacturers of PLC, such as Siemens, Schneider, Mitsubishi, Delta, etc. Almost all manufacturers involved in the industrial automation field will provide their PLC products.