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LOGO!8 V8.4 Unexpected Problem with SD Card

Created by: Kantaphat_1247 at: 7/15/2024 7:44 AM (8 Replies)

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7/15/2024 7:44 AM	Rate (0)
Kantaphat_1247 Joined: 7/19/2023 Last visit: 9/30/2025 Posts: 2 Rating: (1)	Hi All I've my LOGO!8 12/24 RCE Version 8.4. (MFLB: 6ED1052-1MD08-0BA2) . I tried to used an SD Card with LOGO!8 but SD Card can't be detected by LOGO!8 Here is my SD Card information Capacity (Size) : 32 GB File System: FAT32 Allocation unit Size : 64 kilobytes the following SD Card information can be used with LOGO!8 12/24 RCE V8.3 (MFLB: 6ED1052-1MD08-0BA1) with ease What I've tried are as following Try to format without using Quick Format option using windows formatter keep formatting with Quick Format Option Enabled while repeatedly do both of the method somehow that SD Card miraculously work. So I want to know why that SD Card is working with only LOGO!8 V8.3 not V8.4? and are there anything that I should know about how to use SD Card with LOGO!8 Thanks in Advance

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7/15/2024 7:57 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 12/24/2025 Posts: 36369 Rating: (4543)	For the LOGO! 8.4 you can also formatting the SD card with exFAT.

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7/15/2024 8:28 AM	Rate (1)
Kantaphat_1247 Joined: 7/19/2023 Last visit: 9/30/2025 Posts: 2 Rating: (1)	Already Tried it but still not works

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7/15/2024 9:17 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 12/24/2025 Posts: 36369 Rating: (4543)	Then I can't help you, maybe a other user. I have LOGO!s 0BA8 from the first hour, 0BA8.Standard, LOGO! 8.2, LOGO! 8.3 and LOGO! 8.4. I have tried many SD cards from different manufacturer, different classes, different capacities. I never had any problems. All cards are FAT32 formatted. Only with a 64 GB (or more) card is the capacity a problem. I must create a 32 GB FAT32 partition. After made that, there are also no problem.

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7/15/2024 10:21 PM	Rate (0)
JdZ Advanced Member Joined: 10/26/2013 Last visit: 5/17/2025 Posts: 63 Rating: (7)	AutoGen_3412849 Already Tried it but still not works Delete all the existing partitions on the SD. Then make one new whith a FAT32 partition. You can use MiniTool Partition Wizard Free for that.

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11/2/2024 2:56 PM	Rate (0)
AutoGen_6352527 Joined: 10/19/2024 Last visit: 12/5/2024 Posts: 5 Rating: (0)	Hi, could you say you are lucky to have a functional LOGO? Because I took a LOGO 8.4 without a display and I didn't make any card work in it. And I tried several manufacturers, different SD card capacities and both exFAT and FAT32 formatting. Always the same result - the card is not presented. So I returned the LOGO to the seller, because I can't start the WEB server without the SD card. Otherwise, there was no problem even with a 64G card in LOGO 8.0. It wouldn't hurt if siemens paid more attention to the SD card in the manuals. And it would also be good if Siemens would recommend the manufacturer, capacity and format of the SD card with which LOGO will work 100%. Best regards Vladimir

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11/2/2024 3:01 PM	Rate (0)
AutoGen_6352527 Joined: 10/19/2024 Last visit: 12/5/2024 Posts: 5 Rating: (0)	Hi, what would you like to delete partitions for? Formatting (not quick) will delete them all. Best regards Vladimir

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11/2/2024 3:02 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 12/24/2025 Posts: 36369 Rating: (4543)	ixo65 Then I can't help you, maybe a other user. I have LOGO!s 0BA8 from the first hour, 0BA8.Standard, LOGO! 8.2, LOGO! 8.3 and LOGO! 8.4. I have tried many SD cards from different manufacturer, different classes, different capacities. I never had any problems. All cards are FAT32 formatted. Only with a 64 GB (or more) card is the capacity a problem. I must create a 32 GB FAT32 partition. After made that, there are also no problem. As I wrote, I have used various SD cards from various manufacturers with different capacities and have never had any problems. Why should Siemens specify manufacturers? The current specifications in the manual are completely sufficient.

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11/2/2024 9:17 PM	Rate (0)
JdZ Advanced Member Joined: 10/26/2013 Last visit: 5/17/2025 Posts: 63 Rating: (7)	U_20031743-92c2-447c-b5d1-67cd2d4357c6 Formatting (not quick) will delete them all. No, it doesn't. Learn about partitioning and about the start sectors.

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