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文章介绍了由多台可编程控制器 ( PL C)、CA N智能变送器 (计数器 )作为前沿智能单元组成的码头货运现场总线控制系统。利用现场总线作为前沿自动化设备与控制室微机间的数据通讯链路 ,实现现场设备与控制室微机之间的实时数据传输 ,使所有的数据汇集到控制室微机集中处理。文章还介绍了系统的软硬件设计及实现。系统的实际运行效果验证了系统的设计和实现的正确。
The paper introduces a terminal freight fieldbus control system composed of multiple programmable controllers (PL C) and CA N intelligent transmitters (counters) as the leading intelligent unit. Using the field bus as the data communication link between the frontier automation equipment and the control room microcomputer, the real-time data transmission between the field equipment and the control room microcomputer is realized and all the data are collected to the control room microcomputer for centralized processing. The article also introduced the system hardware and software design and implementation. The actual operation of the system validated the design and implementation of the system.