1756-PH75
很多人對Siemens的Work Memory和Load Memory不清楚有何區(qū)別，現(xiàn)初步區(qū)分一下，希望能對剛?cè)腴T的朋友有所幫助。
Work Memory是RAM，是程序被執(zhí)行的地方，如同PC機(jī)中的內(nèi)存條一樣，Work Memory的大小影響程序的處理速度，CPU模塊的指令處理速度一樣，但Work Memory大的CPU處理速度回快，另外Work Memory一般是不可擴(kuò)展的，各個(gè)CPU是固定的，隨著CPU型號越高檔Work Memory區(qū)域一般就越大。
Load Memory可以是FEEPROM（S7-300的MMC卡、S7-400的FLASH卡)，如同PC機(jī)中的硬盤，也可以是RAM(S7-400的內(nèi)置RAM或擴(kuò)展RAM卡),是程序裝載的地方，是可擴(kuò)展的。
程序從Load Memory拷貝到Work Memory后被執(zhí)行。
公司名稱：廈門潤星貿(mào)易有限公司
聯(lián)系人：吳偉杰
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