【多选题】ACOPOS是全数字智能型伺服驱动器,有紧凑的模块式结构,它可以与PLC组成运动控制系统。这种运动控制系统具有什么功能?
C.
实现点对点运动控制、速度控制、扭矩控制、电子齿轮、电子凸轮仿形、横切、飞锯、色标控制、鼓序列发生器、套色纠偏等控制任务。
D.
驱动器为核心运动控制系统中,控制器位于 ACOPOS 伺服驱动的中心,驱动器经 CAN 总线相连并互相保持同步,从而实现了除简单的点对点运动控制以外的复杂运动控制。
【多选题】CAN网络的特点:( )
A.
CAN 主要负责车辆内的数据交换,即各控制单元之间的信息共享。 CAN 网络的数据传输,有很多特点,主要包括多主结构、双绞线传输、压差驱动、高速传输和容错特性等。
B.
CAN 总线系统有多个控制单元组成,每个控制单元均可收发数据,该原理称为广播。
D.
CAN 总线上的控制单元在诊断仪中有独立的诊断地址。 事件触发。
【判断题】444齿轮齿条式转向机构的转向输入为与转向轴相连的从动小齿轮,转向齿条与横拉杆相连带动车轮偏转。
【单选题】听力原文:W: You are always working around the house on Saturday, painting and doing repairs. You must enjoy it. M: Not really. I'd rather relax or go fishing, but Saturday is the only day I have to get an...
【简答题】听下面一段材料,回答第1至3小题。 1. What's the man doing? A. Selling the house. B. Looking for a house. C. Asking for a job. 2. Why does the woman want to sell the house? A. She wants to move to the countryside. B. ...
【单选题】What are the children doing on Halloween? They are having “_______” from house to house.
【单选题】听力原文:W: You're always working around the house on Saturday, painting and doing repairs! You must enjoy it. M: Not really, I'd rather relax or go fishing, but Saturday is the only day I have to get any...
D.
He works on his house.