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CPU 312 non-volatile memory

Created by: Yonas at: 8/15/2013 8:09 AM (6 Replies)

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8/15/2013 8:09 AM	Rate (0)
Yonas Posts: 5 Rating: (0)	Hello, Will be the program in CPU312-1AE13-0AB0 lost after a long time power off (more than 4 months) if MMC slot is empty? Thank you very much!
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8/15/2013 8:16 AM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	Hello, The program is stored on the MMC, without MMC the CPU will not work. From manual: The load memory is located on the SIMATIC Micro Memory Card. The size of the load memory corresponds exactly to the size of the SIMATIC Micro Memory Card. It is used to store code blocks, data blocks and system data (configuration, connections, module parameters, etc.). Blocks that are identified as not relevant for the execution are stored exclusively in the load memory. You can also store all the configuration data for your project on the SIMATIC Micro Memory Card. Note You must have inserted a SIMATIC Micro Memory Card into the CPU to enable the download of user programs and operation of the CPU. Regards, Marcjan
	Last edited by: Marcjan at: 8/15/2013 8:19 AM Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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8/15/2013 8:30 AM	Rate (0)
Yonas Posts: 5 Rating: (0)	Thank you very much for you quickly answer! And one more: ... [snip]
Yonas Posts: 5 Rating: (0)	Last edited by: CS Moderator at: 8/16/2013 11:49 AM new question split to a seperate thread with the subject /tf/WW/en/Posts/96527#bottom
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8/26/2013 4:20 PM	Rate (0)
Yonas Posts: 5 Rating: (0)	So, without MMC card CPU 312 won't run even if i want to load program by MPI cable, right?
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8/27/2013 7:57 AM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	Hello, The program is loaded to the MMC, so yu can't download if there is no MMC. Only the older CPU 300 have own memory and backup battery. These CPU's have a mutch bigger slot for a flash memory card. Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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8/27/2013 1:47 PM	Rate (0)
Yonas Posts: 5 Rating: (0)	Sorry, but I want to load the program to this CPU by MPI interface, but not from CPU. Is it possible?
Yonas Posts: 5 Rating: (0)
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8/27/2013 2:30 PM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 9/4/2024 Posts: 4620 Rating: (707)	Hi Yonas, Have a look: Without MMc Is it possible to run a plant

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