NI PXI-2598 PXI轉換開(kāi)關(guān)模塊
品牌：NI
型號：NI PXI-2598
產(chǎn)品說(shuō)明：PXI轉換開(kāi)關(guān)模塊
NI PXI-2598 PXI轉換開(kāi)關(guān)模塊中文資料：
NI PXI-2598 PXI轉換開(kāi)關(guān)模塊內存地址和昵稱(chēng)的區別%符號用于區分內存地址和別名。例如，%I17（或%I000017）是內存地址。類(lèi)似的術(shù)語(yǔ)I17（沒(méi)有%符號）被PLC視為昵稱(chēng)，可用于大多數內存地址。例如，如果您的工廠(chǎng)中有一臺名為“17號進(jìn)料”的電機，工廠(chǎng)中的人通常將其稱(chēng)為“I17”，您可能希望使用I17作為啟動(dòng)該電機的輸出線(xiàn)圈（%Q11）的昵稱(chēng)。允許您這樣做是因為PLC可以區分昵稱(chēng)I17（您對內存地址%Q11的昵稱(chēng)）和內存地址%I17。NI PXI-2598 用戶(hù)內存引用類(lèi)型下表中提到的用戶(hù)引用在Series 90-30 PLC CPU指令集參考手冊GFK-0467.160（安裝16點(diǎn)模塊的最大物理I/O）中進(jìn)行了解釋?zhuān)蛔疃?20個(gè)，安裝32點(diǎn)模塊。只能用手持式編程器查看（參見(jiàn)GFK-0402《手持式編程儀用戶(hù)手冊》）；可以不在用戶(hù)的邏輯程序中引用。NI PXI-2598
英文資料
Difference Between a Memory Address and a Nickname The % symbol is used to distinguish memory addresses from nicknames. For example, %I17 (or %I000017) is a memory address. The similar term, I17 (it has no % sign), is viewed by the PLC as a nickname and could be used with most memory addresses. For example, if you had a motor in your plant called “Infeed No. 17,” and it was commonly referred to as ”I17” by the people in your plant, you might wish to use I17 as the nickname for the output coil (%Q11) that turns on that motor. You are allowed to do so because the PLC can distinguish between the nickname, I17 (your nickname for memory address %Q11), and memory address %I17.User Memory Reference Types The user references referred to in the following tables are explained in the Series 90-30 PLC CPU Instruction Set Reference Manual, GFK-0467.160 physical I/O maximum with 16 point modules installed; 320 maximum with 32 point modules installed. May be viewed only with a Hand-Held Programmer (see the Hand-Held Programmer User’s Manual, GFK-0402) ; may not be referenced in a user’s logic program.NI PXI-2598
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