系统通讯
操作员级和过程控制级之间通信使用TCP/IP协议系统总线(基于以太网)，您可以选择不同的传输介质例如AUI、双绞线、光纤或同轴电缆。Freelance OPC服务器用于连接更高-级的操作员站(800xA) 或其他OPC客户端。Freelance控制 系统中的实时过程值和报警可以通过OPC进行访问。我们同时提供一个C语言编程接口嵌入到外部基于Windows操作系统应用程序中，适用于实现用户使用非标准OPC通信，即DMS-API 软件包。
Freelance 800f process control level
At the process control level, the Freeland 800f system can be composed of many process control stations connected to i/o units. You can choose this
These process stations are in redundant mode (CPU redundancy, fieldbus module redundancy) or non redundant mode. Modular pluggable I / O module
The block can be freely selected and used according to the type and quantity of system process signals. AC800F controller connects remote i/o or field devices through fieldbus.
