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1基金会现场总线是什么?基金会现场总线是专门设计用于过程控制应用的实时数字通信网络。它取代了模拟4~20mA和开关信号,用于将变送器、分析仪器、控制阀定位器和开关阀等仪表接至集散控制系统(DCS)、可编程逻辑控制器(PLC)、远程终端设备(RTU)和其他自动化系统。基金会现场总线支持从接线盒到现场的长电缆连接以及设备用长支线。基于现场总线的控制系
1 What is FOUNDATION fieldbus FOUNDATION fieldbus is a real-time digital communications network designed for process control applications. It replaces the analog 4-20mA and switching signals used to connect transmitters, analyzers, control valve positioners and on-off valves to distributed control systems (DCS), programmable logic controllers (PLCs), remote terminals Equipment (RTU) and other automation systems. FOUNDATION fieldbus supports long cable connections from the junction box to the field as well as long extensions for equipment. Fieldbus based control system