PLC的軟件編程

    A-B PLC 5/40處理器隨機(jī)提供6200系列編程軟件，但在實(shí)際編程中采用了Rockwell軟件公司的Logic 5軟件對(duì)PLC進(jìn)行編程。Logic 5是基于Windows的應(yīng)用程序，相對(duì)于6200編程軟件具有直觀、易用、功能強(qiáng)大的特點(diǎn)。該軟件運(yùn)行于PC機(jī)上，通過(guò)RS 232串行口對(duì)PLC進(jìn)行編程。由于程序復(fù)雜，故將程序分為若干個(gè)子程序進(jìn)行編程。這些子程序塊依次是，加電初始化模塊、主從處理器同步模塊、人機(jī)界面通信模塊、模擬量高/低報(bào)警判斷模塊、Fire ESD/ESD/PSD/USD信號(hào)產(chǎn)生模塊以及關(guān)停動(dòng)作執(zhí)行模塊。經(jīng)后來(lái)的系統(tǒng)調(diào)試實(shí)踐證明，這種模塊化的編程方式對(duì)安裝調(diào)試提供了很大的方便，

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