PLC控制三路抢答器系统设计
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摘 要:详细介绍了PLC控制三路抢答器控制系统硬件软件设计,选用西门子PLC S7-226 CPU为核心控制芯片,共三路抢答器,分别与PLC的Q0.1-Q0.3相连,由主持人控制抢答启动按钮,主持人未启动抢答按钮之前,抢答席按钮被锁。
关键词:抢答器;西门子;PLC硬件设计
中图分类号:TP311.52 文献标志码:A 文章编号:2095-2945(2021)09-0131-03
Abstract: This paper introduces in detail the hardware and software design of the PLC control system of three-way answering device. Siemens PLC S7-226 CPU is selected as the core control chip. Three-way answering device is connected with PLC Q0.1-Q0.3 respectively, and the starting button of answering device is controlled by the presenter. Before the presenter starts the answering button, it is locked.
Keywords: answering device; Siemens; PLC hardware design
引言
抢答器是各类竞赛中的必备设备,广泛应用于各种知识竞赛、文娱活动等场合。(剩余2101字)
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