廈門市泰尼電器有限公司
主營產(chǎn)品: AB模塊PLC |
廈門市泰尼電器有限公司
主營產(chǎn)品: AB模塊PLC |
參考價 | 面議 |
IC693CBL303+++IC693CBL303
+++
而且所有這些編程語言,PCC都采用“符號變量"來標識外部I/O通道及內(nèi)部寄存器單元(例如用戶可用motor_run來代表某開關量輸出通道,button_down代表某開關量輸入通道)。這樣,軟件開發(fā)人員毋需熟知PCC內(nèi)部的硬件資源分布,而只須集中精力于項目本身的工藝要求,即可迅速編制出結(jié)構(gòu)清晰功能明確的控制程序來。
:張亮(工程師) 專線:
24小時移動專線: 【】
PCC在硬件上的特點,還體現(xiàn)在它為工業(yè)現(xiàn)場的各種信號和應用設計了許多的接口模塊和功能模塊,如溫度、張力、步進電機驅(qū)動、示波器、鼓序列發(fā)生、脈沖編碼,稱重、超聲波信號等等。它們將各種形式的現(xiàn)場信號十分方便的接入以PCC為核心的數(shù)字控制系統(tǒng)中,用戶可按需要對I/O通道進行數(shù)十點、數(shù)百點至數(shù)千點的擴展與聯(lián)網(wǎng)。在PCC模塊內(nèi)部,CPU的數(shù)據(jù)總線與IO總線分離,并配置有獨立的I/O處理器,*的時間處理單元(TPU)在不增加CPU負荷的前提下,高速處理無論簡單或復雜的定時任務,其基準計時頻率可高達6.29MHz,因此目前被廣泛應用于測頻測相及PWM等*精度的時間處理場合中。而其所有數(shù)字量輸入端都經(jīng)過了光電耦合隔離,模擬量輸入端也都經(jīng)過了RC濾波處理,因此具有很好的抗*力,其整體硬件平均*時間MTBF高達50萬小時。
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