CE4005S2B1
CE4005S2B1
其實(shí)”醉生夢死“只不過是她跟我開的一個(gè)玩笑,
你越想知道自己是不是忘記的時(shí)候,你反而記得清楚。
所以說廈門莫格就是你”醉生夢死“的好地方,
這里有全國*的折扣,風(fēng)靡的價(jià)格,和的品質(zhì)
你還在等什么??!這個(gè)好地方,有莫格小祖帶你參觀
:祖巧麗
:
在實(shí)際運(yùn)用中,當(dāng)需要對PLC的規(guī)模作出評價(jià)時(shí),較為普遍的作法是根據(jù)輸入/輸出點(diǎn)數(shù)的多少或者程序存儲器容量(字?jǐn)?shù))的大小作為評價(jià)的標(biāo)準(zhǔn),將PLC分為小型、中型和大型(或小規(guī)模、中規(guī)模和大規(guī)模)三類,如表1所示。
表1 PLC的規(guī)模分類
存儲器容量的大小決定存儲用戶程序的步數(shù)或語句條數(shù)的多少。輸入/輸出點(diǎn)數(shù)與程序存儲器容量之間有內(nèi)在的。當(dāng)輸入/輸出點(diǎn)數(shù)增加時(shí),順序程序處理的信息量增大,程序加長,因而需加大程序存儲器的容量。
一般來說,數(shù)控車床、銑床、加工中心等單機(jī)數(shù)控設(shè)備所需輸入或輸出點(diǎn)數(shù)多在128點(diǎn)以下,少數(shù)復(fù)雜設(shè)備在128點(diǎn)以上。而大型數(shù)控機(jī)床,F(xiàn)MC、FMS、FA則需要采用中規(guī)模或大規(guī)模PLC。
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NUMATICS ACTUATOR PNEUMATIC VALVE REPAIR KIT, N98-2190 *NEW*
SMC 24VDC DOUBLE SOLENOID VALVE VQ7-6-FG-D-3Z
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