1756-PA72
1756-PA72
PLC可接收計數脈沖，頻率可高達幾k到幾十k赫茲。可用多種方式接收這脈沖，還可多路接收。有的PLC還有脈沖輸出功能，脈沖頻率也可達幾十k。有了這兩種功能，加上PLC有數據處理及運算能力，若再配備相應的傳感器（如旋轉編碼器）或脈沖伺服裝置（如環形分配器、功放、步進電機），則*可以依NC的原理實現種種控制。
高、中檔的PLC，還開發有NC單元，或運動單元，可實現點位控制。運動單元還可實現曲線插補，可控制曲線運動。所以，若PLC配置了這種單元，則*可以用NC的辦法，進行數字量的控制。
新開發的運動單元，甚至還發行了NC技術的編程語言，為更好地用PLC進行數字控制提供了方便。
3.4用于數據采集
隨著PLC技術的發展，其數據存儲區越來越大。如德維森公司的PLC，其數據存儲區（DM區）可達到9999個字。這樣龐大的數據存儲區，可以存儲大量數據。
◆ 企業名稱：廈門泰尼電氣有限公司
◆ 企業性質： 有限責任公司
◆ 主營業務：DCS,PLC
◆ 經營模式： 貿易
◆ 貿易地區： 全國
◆ ： 小廖女士）
◆ ：
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◆ :
◆ （備注“01008”收）
◆ ：
◆ 郵政編碼： 361026
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