基于RS485总线的DSP网络控制系统设计

DSP network control system based on RS485

为了使工业生产计算机控制系统中多种数据之间有可靠通讯,满足过程实时控制的要求,提出了一种基于DSP的网络控制系统的设计方案,介绍了DSP网络控制系统的总体设计思路,运用RS485总线技术对现场控制节点进行硬件设计并对RS485通讯软件的实现进行了详细地分析,实现了上位机与底层控制器之间的RS485数据的可靠通讯,通过生产现场调试验证了网络控制指标.

To make reliable communication between multiple industrial production data in a computer control system, and to achieve real time control, the RS485 network control system is proposed in this paper based on TMS320LF2407A. The design of DSP network control system is introduced. The hardware of field control note was designed using RS485 bus, and the detailed software implementation is described. The RS485 reliable data communications is achieved between the PC and the bottom of the controller＇s. It verified their network con- trol targets through the production site.