摘要
为快速建立数控机床工作台运动监测系统,缩短开发周期,使用西门子S7-1214 PLC的高速计数器对编码器计数,并通过PROFINET接口将计数值发送给上位机;上位机在VC＋＋开发环境中采用Winsock控件实现与PLC间的的TCP通信,获取各编码器的计数值,并换算成数控机床X、Y轴丝杠的位移,从而拟合其实际运动轨迹,通过实际运动轨迹与理想运动轨迹的比较即可实现机床运动的在线监测。
In the vision of public cultural services, the Public Library is the important institutions of public cultural services. In this paper, we start from the network to the challenges of the Public Library ,to analyze the problems of public libraries facing and solutions.
出处
《职业时空》
2012年第7期15-16,共2页
Career Horizon
关键词
运动监测
PLC通信
WINSOCK
public library
public cultural service
management concept
