1.PLC has strong functions and high cost performance.It can realize decentralized control and centralized management through communication networking.
2.The hardware is complete,the user is easy to use and has strong adaptability.PLC products have been standardized,serialized,and modularized.They are equipped with a full range of various hardware devices for users to choose from.Users can configure the system flexibly and conveniently to form systems with different functions and scales.After the hardware configuration is determined,the user program can be modified to easily and quickly adapt to changes in process conditions.
3.Easy to use and simple to program.Using simple programming languages such as ladder diagrams,logic diagrams or statement lists without computer knowledge,the system development cycle is short and on-site debugging is easy.In addition,the program can be modified online to change the control scheme without dismantling the hardware.
4.High reliability and strong anti-interference ability.PLC has adopted a series of hardware and software anti-interference measures,has strong anti-interference ability,and is recognized as one of the most reliable industrial control equipment.
5.The design,installation and debugging of the system have less workload.
6.The maintenance workload is small and the maintenance is convenient.
1.PLC功能强,性价比高,可以通过通信联网,实现分散控制,集中管理。
2.硬件配套齐全,用户使用方便,适应性强。PLC产品已经标准化、系列化、模块化,配备有品种齐全的各种硬件装置供用户选用,用户能灵活方便地进行系统配置,组成不同功能、不同规模的系统。硬件配置确定后,可以通过修改用户程序,方便快速地适应工艺条件的变化。
3.使用方便,编程简单。采用简明的梯形图、逻辑图或语句表等编程语言,而无需计算机知识,因此系统开发周期短,现场调试容易。另外,可在线修改程序,改变控制方案而不拆动硬件。
4.可靠性高,抗干扰能力强。PLC采取了一系列硬件和软件抗干扰措施,具有很强的抗干扰能力,被公认为最可靠的工业控制设备之一。
5.系统的设计、安装、调试工作量少。
6.维修工作量小,维修方便。
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