11/3/2021 11:07 PM | |
Posts: 257 Rating: (78)
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Hello SIOS forum community We would like to discuss the memory card on the S7-1200. You can use the memory card as a transfer card or as a program card. Transfer cards and program cards contain all code blocks and data blocks, all technology objects and the device configuration. Transfer cards and program cards do not contain, for example, force tables, observation tables or PLC variable tables. ● With a transfer card you copy a program into the internal load memory of the CPU without using STEP 7 for this. You can use an empty transfer card to access a password-protected CPU if you have lost or forgotten the password. ● You use a program card as external load memory for the CPU. You also use the memory card when you download firmware updates Attention! Do not use the Windows formatting program or any other formatting program to reformat the Memory Card. If a Siemens Memory Card is reformatted with the Windows formatter program, the Memory Card can no longer be used by an S7-1200 CPU. Further information may be found in the manual of the S7-1200 in chapter 5 PLC Basics from page 134 and in the FAQ: How can you use the memory card for the S7-1200 CPU? Note The procedure described in this article refers to the time when this article was written (status: November 2021). With kind regards SIMATIC International Technical Support Hub |
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