FBM15 系统模块 Foxboro

FBM15  系统模块 Foxboro

FBM15  系统模块 Foxboro

IO的采样数据经CPU转换后变为整形数据或实形数据，在操作级网络（层网络）上传输。

因此操作级网络可以采用数据吞吐量适中、传输速度快、连接方便的网络标准，同时因操作级网络一般布置在控制室内，对抗干扰的要求相对较低。

因此采用标准以太网是佳选择。TCP/IP协议是一种标准以太网协议，一般我们采用100Mbit/s的通讯速度。

FBM15  系统模块 Foxboro

The sampled data of I/O is converted to shape data or real data by the CPU and transmitted on the operation-level network (layer network).

Therefore, the operation-level network can adopt the network standard of moderate data throughput, fast transmission speed and convenient connection, and because the operation-level network is generally arranged in the control room, the requirement of countering interference is relatively low.

So using standard Ethernet is the best choice. TCP/IP protocol is a standard Ethernet protocol, generally we use 100Mbit/s communication speed.