FBM211 P0914TN工控模块

FBM211 P0914TN工控模块卡件PLC/DCS备件模块

FBM211 P0914TN工控模块卡件PLC/DCS备件模块

                                                      产品详情资料：

DCS的特点
    （1）控制功能强。可实现复杂的控制规律，如串级、前馈、解耦、自适应、和非线性控制等。也可实现顺序控制。
    （2）系统可靠性高。
    （3）采用CRT操作站有良好的人机界面。
    （4）软硬件采用模块化积木式结构。
    （5）系统容易开发。
    （6）用组态软件，编程简单，操作方便。
    （7）有良好的***。

编程方便：PLC内部虽然没有什么实际的继电器、时间继电器、计数器，但它通过程序（软件）与系统内存，这些器件却实实在在地存在着。其数量之多是继电器控制系统难以想象的。即使是小型的PLC，内部继电器数都可以千计，时间继电器、计数也以百计。而且，这些继电器的接点可***次地使用。PLC内部逻辑器件之多，用户用起来已不感到有什么限制。考虑的只是入出点。而这个内部入出点即使用得再多，也无关紧要。大型PLC的控制点数可达万点以上，哪有那么大的现实系统？若实在不够，还可联网进行控制，不受什么限制。PLC的指令系统也非常丰富，可毫不困难地实现种种开关量，以及模拟量的控制。PLC还有存储数据的内存区，可存储控制过程的所有要保存的信息。……总之，由于PLC功能之强，发挥其在控制系统的作用，所受的限制已不是PLC本身，而是人们的想象力，或与其配套的其它硬件设施了。

                                                    产品英文详情资料：

Characteristics of DCS

(1) Strong control function. It can achieve complex control laws, such as cascade, feedforward, decoupling, adaptive, and nonlinear control. Sequential control can also be achieved.

(2) High system reliability.

(3) The CRT operation station has a good human-machine interface.

(4) The software and hardware adopt a modular building block structure.

(5) The system is easy to develop.

(6) Using configuration software, programming is simple and operation is convenient.

(7) Having good * * *.

Programming convenience: Although there are no actual relays, time relays, or counters inside the PLC, these devices actually exist through the program (software) and system memory. The number of them is unimaginable for relay control systems. Even for small PLCs, the number of internal relays can be counted in thousands, while time relays and counts can also be counted in hundreds. Moreover, the contacts of these relays can be used * * * times. There are so many internal logic devices in PLC that users no longer feel any restrictions when using them. All that is considered is the entry and exit points. And it doesn't matter how much internal entry and exit points are used. The control points of a large PLC can reach over ten thousand, how can there be such a large real-world system? If it is not enough, it can be controlled online without any restrictions. The instruction system of PLC is also very rich, which can easily achieve control of various switching values and analog quantities. The PLC also has a memory area for storing data, which can store all the information to be saved during the control process In short, due to the strong functionality of PLC, its role in the control system is no longer limited by the PLC itself, but by people's imagination or other hardware facilities associated with it.

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