TRICONEX MP3101S2 系统模块

TRICONEX MP3101S2 系统模块

TRICONEX MP3101S2现场总线是用于实时分布式控制的工业网络系统。这是在制造工厂中连接仪器的一种方式。现场总线的网络结构通常允许菊花链、星形、环形、树枝和树网络拓扑。以前，计算机通过以下方式连接RS-232（串行连接)只有两个设备可以通过它进行通信。这相当于目前使用的4–20mA通信方案这要求每个设备在控制器级有自己的通信点，而现场总线相当于电流局域网类型的连接，在控制器级别只需要一个通信点，并允许多个(数百个)模拟的和数字的要同时连接的点。这既减少了所需电缆的长度，也减少了所需电缆的数量。此外，由于通过现场总线通信的设备需要微处理器多个点通常由同一设备提供。一些现场总线设备现在支持控制方案，例如PID控制而不是强迫控制器去做处理。
TRICONEX MP3101S2使用现场总线的最重要的动机分布式控制系统是降低安装成本维护在不损失高度的情况下有效性和可靠性自动化系统。目标是使用双线电缆和简单的现场配置设备来自不同的制造商。根据应用的不同，传感器和执行器的数量从一台机器中的数百个到大型工厂中的数千个不等。现场总线的历史显示了如何实现这些目标。

TRICONEX MP3101S2 系统模块

TRICONEX MP3101S2 fieldbus is an industrial network system for real-time distributed control. This is a way to connect instruments in a manufacturing factory. The network structure of fieldbus usually allows daisy chain, star, ring, branch and tree network topology. Previously, computers were connected to RS-232 (serial connection) in the following ways, and only two devices could communicate through it. This is equivalent to the current 4–20 mA communication scheme, which requires each device to have its own communication point at the controller level, while the field bus is equivalent to the current LAN type connection. At the controller level, only one communication point is needed, and multiple (hundreds) analog and digital points are allowed to be connected at the same time. This not only reduces the length of required cables, but also reduces the number of required cables. In addition, because the devices communicating through the field bus need microprocessors, many points are usually provided by the same device. Some fieldbus devices now support control schemes, such as PID control instead of forcing the controller to do processing.

TRICONEX MP3101S2 The most important motive for using fieldbus is to reduce the installation cost and maintain the automation system of effectiveness and reliability without losing height. The goal is to use two-wire cables and simple field configuration equipment from different manufacturers. Depending on the application, the number of sensors and actuators varies from hundreds in a machine to thousands in a large factory. The history of Fieldbus shows how to achieve these goals.