TSXAEY800
TSXAEY800
詢價(jià)QQ;1093230189
PCC的應(yīng)用程序由多任務(wù)模塊構(gòu)成,給項(xiàng)目應(yīng)用軟件的開發(fā)帶來很大的便利。因?yàn)檫@樣可以方便地按照控制項(xiàng)目中各部分不同的功能要求,如運(yùn)動(dòng)控制、數(shù)據(jù)采集、報(bào)警、PID調(diào)節(jié)運(yùn)算、通信控制等,分別編制出控制程序模塊(任務(wù)),這些模塊既獨(dú)立運(yùn)行,數(shù)據(jù)間又保持一定的相互關(guān)聯(lián),這些模塊經(jīng)過分步驟的獨(dú)立編制和調(diào)試之后,可一同下載至PCC的CPU中,在多任務(wù)操作系統(tǒng)的調(diào)度管理下并行運(yùn)行,共同實(shí)現(xiàn)項(xiàng)目的控制要求。 PCC在編制不同的單個(gè)任務(wù)模塊時(shí),具有靈活選用不同編程語言的特點(diǎn),這就意味著不僅在常規(guī) PLC上一直為人們所熟悉的梯形圖、指令表語言可在PCC上繼續(xù)沿用,而且用戶還可采用更為高效直觀的高級(jí)語言(PL2000),它是一套完全面向控制的文本語言,熟悉BASIC的技術(shù)人員會(huì)對它的語法有種似曾相識(shí)的感覺,它對于控制要求的描述非常簡便、直觀。除此之外,PCC的應(yīng)用軟件開發(fā)還具有集成“C”語言程序的能力,從而提供了強(qiáng)大的數(shù)據(jù)運(yùn)算和處理能力。 在硬件結(jié)構(gòu)方面,PCC的特點(diǎn)是很顯著的。在其核心的運(yùn)算模塊內(nèi)部,PCC為其CPU配備了數(shù)倍于常規(guī) PLC的大容量存儲(chǔ)單元(100K?16M),這無疑為強(qiáng)大的系統(tǒng)和應(yīng)用軟件提供了監(jiān)視的硬件基礎(chǔ)。PCC在硬件上的特點(diǎn),還體現(xiàn)在它為工業(yè)現(xiàn)場的各種信號(hào)設(shè)計(jì)了許多專用的接口模塊,如高頻脈沖、增量式編碼器、溫度、稱重信號(hào)及超聲波信號(hào)接口模塊等。它們將各種形式的現(xiàn)場信號(hào)十分方便的聯(lián)入以PCC為核心的數(shù)字控制系統(tǒng)中,用戶可按需要對應(yīng)用系統(tǒng)的硬件I/O通道以單路、十余路或數(shù)十路為單位模塊,進(jìn)行數(shù)十點(diǎn)至數(shù)百點(diǎn)上千點(diǎn)的擴(kuò)展與聯(lián)網(wǎng)。 PCC在工業(yè)控制中強(qiáng)大的功能優(yōu)勢,體現(xiàn)了可編程控制器與工業(yè)控制計(jì)算機(jī)及DCS(分布式工業(yè)控制系統(tǒng))技術(shù)互相融合的發(fā)展潮流,雖然這還是一項(xiàng)較為年輕的技術(shù),但在其越來越多的應(yīng)用領(lǐng)域中,它正日益顯示出不可低估的發(fā)展?jié)摿Α?
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