TRICONEX 3201数据通信模块

TRICONEX  3201数据通信模块

TRICONEX  3201数据通信模块系统创造性地采用了交换机拓扑式控制网络结构（Mesh Control Network）作为I/A系统的通讯平台。Mesh网络融合了市场上进的交换机技术和全光纤通讯线缆设计，极大地提高了网络通讯的冗余度和抗电磁干扰的能力。Mesh网络可同时容纳1920个控制站（对）和工作站一起工作，可以在全工厂范围达到控制信息的互传共享而没有网关网桥的限制。在Mesh网络中，交换机与交换机之间均可以达到1Gb/s的通讯速率；所有设备的接入均可为100Mb/s的通讯速率；并且，网络中的通讯可以并发进行，通讯效率得到了极大的提高。另外，Mesh网络布置灵活方便，可以根据用户工厂的地理分布和控制室集中分散原则给出相应的网络拓扑。

TRICONEX  3201数据通信模块第二级网络是控制器之间的通讯，把完成不同任务的三种控制器连在一条总线上，称为控制总线。在控制总线上的不同控制器的数量不受限制。在这一条总线上除三种不同的控制器模件以外，还有DCS网络的接口模件。在控制总线上，控制器之间可以调用数据。使得模拟量和开关量之间的结合很好。控制总线不是每一种DCS系统都有的，可以把各种控制器分别连到DCS网络上。控制器之间的数据调用要通过DCS网络。控制总线的速率情况与I/O总线的情况相类似。通常是几十K到几兆之间。当CPU和存储器的能力比较强时，把开关量的逻辑运算和模拟量的采集功能都在一个控制器中完成。在控制总线上就只有一种形式的控制器。其协议采用载波监听，广播发送，类似以太网的协议。

TRICONEX  3201数据通信模块

The TRICONEX 3201 data communication module system creatively uses the Mesh Control Network structure as the communication platform of the I/A system. Mesh network integrates the market advanced switch technology and all-fiber communication cable design, which greatly improves the redundancy of network communication and the ability to resist electromagnetic interference. The Mesh network can accommodate 1920 control stations (pairs) and workstations working together at the same time, and can achieve the mutual transmission and sharing of control information across the plant without the restriction of gateway Bridges. In Mesh network, the communication rate between switches can reach 1Gb/s. Access to all devices can be 100Mb/s communication rate; In addition, the communication in the network can be carried out concurrently, and the communication efficiency has been greatly improved. In addition, the Mesh network layout is flexible and convenient, and the corresponding network topology can be given according to the geographical distribution of the user's factory and the centralized and decentralized principle of the control room.

The second level network of the TRICONEX 3201 data communication module is the communication between controllers, and the three controllers that complete different tasks are connected to a bus, called the control bus. The number of different controllers on the control bus is not limited. In addition to three different controller modules on this bus, there are interface modules for the DCS network. On the control bus, data can be called between controllers. The combination between analog and switching quantity is very good. The control bus is not available in every DCS system, and various controllers can be connected to the DCS network separately. Data calls between controllers are made through the DCS network. The rate situation of the control bus is similar to that of the I/O bus. Usually between tens of Kelvin and megabytes. When the ability of CPU and memory is relatively strong, the logic operation of switching quantity and the acquisition function of analog quantity are completed in one controller. There is only one form of controller on the control bus. Its protocol uses carrier monitoring, broadcast transmission, similar to Ethernet protocol.

TRICONEX  3201数据通信模块