siemens存儲(chǔ)卡的選擇-資料下載頁(yè)
2025-05-27 22:09本頁(yè)面
【正文】 perty of data blocks.A data block with the property NonRetain is not stored in the remanence memory in a CPU 317 2DP and is thus reset to the original load values at each power OFF/ON or each STOPRUN transition of the CPU.A data block with the NonRetain property occupies RAM space as usual, but no remanence memory space. Note:The CPU 3172DP has a RAM of 512 KB, but only 256 KB of data can be retained返 回QUESTION 7 : 我如何將一些系統(tǒng)文件或是項(xiàng)目相關(guān)的文件存儲(chǔ)到MMC上？ Can I also save other files that belong to the project or system on the MC/MMC? ANSWER: You can save any file connected with the system on the MC/MMC.Procedure: Slot the memory card or micro memory card into the PG. Open the SIMATICManager. Go to File S7Memory Card Open. Then go to PLC Save to Memory Card .... Fig. 1: SIMATIC Manager S7 memory card In the left file explorer you select the required file and mark it for saving with the button. If you want to remove files again from the selection, use the button. Click OK to save the selected data to the memory card or micro memory card. You receive an acknowledgment once the data has been saved. Then the data transferred is displayed in the S7 Memory Card window. Fig. 3: View of data in memory card window Note:You can only use this function for an S7300 Micro Memory Card and S7400 Flash EPROM card. 返 回QUESTION 8 : 我想將我的STEP7項(xiàng)目完整地保存在MMC卡上，該選擇多大的MMC？How can I determine the size of the MMC so that I can store my plete STEP 7 project on it? ANSWER: In order to choose the appropriate MMC for your project you need to know the overall size of the project and the size of the blocks to be loaded. You can determine the size of the project as described below: First archive your STEP 7 project. Then open the archived project in Windows Explorer and determine its size (select and rightclick). This gives you the size of the archived file. Fig. 1: File properties Load your blocks into the CPU. Now you still have to select PLC Module Information Memory. There, in Load memory RAM + EPROM, you can see the size of the assigned load memory. Fig. 2: Load memory You must add this value to the size of the archived project you have already determined. This gives you the overall amount of memory required to store your plete project on an MMC.返 回QUESTION 9 : 我對(duì)插入MMC卡的S7300PLC進(jìn)行了加密，但我忘記了密碼，如何才能對(duì)MMC解密， 或刪除MMC卡上的密碼？答： 如果您忘記了您在S7300CPU Protection屬性中所設(shè)定的密碼，那么您只能夠采用siemens的編程器PG（6ES77980BA000XA0）上的讀卡槽或采用帶USB接口的讀卡器（USB prommer 6ES77920AA000XA0），選擇SIMATIC Manager界面下的菜單 File224。S7 Memory Card224。delete 選項(xiàng)刪除MMC卡上原有的內(nèi)容，這樣MMC就可以作為一個(gè)未加密的空卡使用了，但無(wú)法對(duì)MMC卡進(jìn)行解密，讀取MMC卡中的程序或數(shù)據(jù)。返 回
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