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LON技术基于LonWorks遵从LonTalk通信规约 ,用LON技术可以研制出符合“过程管理”概念的FCS系统.该文阐明LON与LonWorks技术、LonTalk、LonMark间的关系 ,以及用LON技术开发FCS系统的目标和实现“防爆”、“冗余”和“互操作”的观点.该文还构划了一个这类FCS的软、硬件系统概貌.“,”This paper introduces a microcomputer-controlled small scale sale system which is based on IC card. The system supports two working modes:individual and networks. The structure, feature and theory of the lowersets is introduced. In the end, the design of RS485 net-based linking is introduced as well.