| PLC与显示器、打印机接口技术的研究 |
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| 引用本文： | 王拥军,陈万忠,张文泰. PLC与显示器、打印机接口技术的研究[J]. 控制工程, 2004, 0(Z1) |
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| 作者姓名： | 王拥军 陈万忠 张文泰 |
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| 作者单位： | 吉林大学通信工程学院 吉林长春130025(王拥军，陈万忠)，吉林大学通信工程学院 吉林长春130025(张文泰) |
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| 摘 要： | 设计了PLC与LED显示器、打印机的接口电路。硬件上采用光电耦合器来实现逻辑电平的转换;软件上利用PLC丰富的计数器使PLC扫描时序满足外设接口时序的要求,将所需数据传送出去。从而使PLC同时具有实时显示和打印输出功能,以便随时监测并记录现场运行参数,避免因人工记录数据出现的错误。经实际操作证明,该方案较易实现,具有很强的实用性。
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| 关 键 词： | PLC 显示器 打印机 接口 |
Research on the Interface Technology for Connecting PLC with Display and Printer |
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| WANG Yong-jun,CHEN Wan-zhong,ZHANG Wen-tai. Research on the Interface Technology for Connecting PLC with Display and Printer[J]. Control Engineering of China, 2004, 0(Z1) |
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| Authors: | WANG Yong-jun CHEN Wan-zhong ZHANG Wen-tai |
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| Abstract: | It is designed the interface circuit, which is used to connect the PLC with LED and printer, adopting opto-isolator to finish the logic level conversion at hardware, and utilizing the counter of PLC to make the scan time sequence of PLC meet the time sequence request of outside set up interface. So we can make it not only display but also print in real time, in order to detect and write down the run-time parameters at any time, avoiding the mistake that comes from the artificial record. It has been proved that has realizing nature and very strong practibility that the better one can. |
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| Keywords: | PLC display printer interface |
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