1746-OV16
1746-OV16
4.3 过网关接口集成现场总线
这种集成方式通过专门设计的网关接口实现现场总线网络和DCS系统的完全双向连接,即DCS操作员站能访问现场设备中的所有信息,而现场总线也能获取DCS提供的各种信息 ,因此便于实现现场总线和DCS的协调控制。此外 ,在这种集成方式下,现场总线的控制功能更加独立,可以构成一个脱离DCS的完整的控制系统。
这种方式主要适用于规模较大的控制系统,能有效保护用户对DCS的先期投资。DCS负责监控、优化、先进控制、协调管理等较复杂的应用,是主控系统 ,而FCS负责现场设备层的数据采集和闭环控制并将设备的状态、诊断信息实时地传送至DCS 。
但是这种接口方式对网关接口技术要求很高,此接口要完成双向的协议转换,为DCS和现场总线提供透明的数据访问。
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现货,现货,降降降,火火火,火火火……
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