基于ADAM-5550KW PAC的多通道同步采集系统软件设计

Software design for multichannel synchronous data acquisition system based on ADAM-5550KW PAC

以ADAM-5550KW可编程自动化控制器(PAC)为硬件核心,配以ADAM-5017s I/O模块,设计了一套多通道同步采集系统软件。采用双机架构,作为下位机的ADAM-5550KW PAC负责实时数据的采集,作为上位机的工业控制机负责数据的分析、参数计算和图形输出等工作。双机通过网线连接,采用TCP/IP协议将数据由下位机传送到上位机。综合利用ADAM-5550KW PAC装置内置的2块CPU,底层ARM7-CPU负责从ADAM-5017s I/O模块读取数据;上层AMD-CPU负责在下位机中的缓存以及将数据传送到上位机。以Modbus/TCP协议为程序间的通信手段,实现了运行在不同CPU和不同平台下的多个程序间的协同工作。按照所提出的方案设计的发动机励磁以及同期系统测试仪器,实际应用效果良好。

The software of a multi-channel synchronous data acquisition system is designed,which takes ADAM-5550KW PAC（Programmable Automation Controller） as its core and applies ADAM-5017s I/O module.The dual computer configuration is adopted：the subordinate computer ADAM-5550KW PAC is in charge of the real-time data acquisition and the superordinate industrial control computer is in charge of the data analysis,parameter calculation,graphics output,etc.Data are sent from the subordinate computer to the superordinate computer via network with TCP/IP protocol.Both CPUs of ADAM-5550KW PAC are used：the bottom ARM7 CPU acquires data from ADAM-5017s I/O module and the top AMD CPU stores and sends data to the superordinate computer.Modbus/TCP protocol is applied as the means of communication to coordinate different programs operating in different CPUs and platforms.The designed system is successfully applied to the generator excitation and the tester for synchronization system.