描述
同时可简化控制系统的设计。但由于显示器的高成本,限制了大尺寸显示屏的应用,因此该方法适合于紧凑型的PLC控制系统。随着计算机性能和可靠性进一步提高,”PC+PLC”模式的控制系统在工业控制领域得到广泛应用,PC机凭借丰富的软硬件资源,可实现PLC的在线监测,集中显示大量的PLC内部数据,能以图形化的方式显示控制设备的动态工艺流程和数据趋势曲线,使系统的人机界面直观友好。
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