chand345 Posted June 28, 2019 Report Share Posted June 28, 2019 Hey, We have a 128 GB SD card that we are trying to get working with our PLC HMI panel. We want to save csv files of data to the SD card, but the PLC is not recognizing the card. We tried formatting the card using the SD Card Suite but that also didn't fix the problem. Are there any other steps we are missing to get the PLC to recognize the card? Thanks. Quote Link to comment Share on other sites More sharing options...
MVP 2023 Flex727 Posted June 28, 2019 MVP 2023 Report Share Posted June 28, 2019 Have you tried a lower capacity card? Quote Link to comment Share on other sites More sharing options...
chand345 Posted June 28, 2019 Author Report Share Posted June 28, 2019 What capacity should we use that you think is optimal? Quote Link to comment Share on other sites More sharing options...
MVP 2023 Flex727 Posted June 28, 2019 MVP 2023 Report Share Posted June 28, 2019 It's not a matter of optimal - it's a matter of the PLC being able to handle such a large capacity card. I haven't checked to see what the limit might be for the UniStream hardware, but I would be certain that it would handle 32GB or lower. Just grab a 32 or 16GB card and see if you can get it to work. They're cheap and it would be an easy test. Is there some reason why you must use a 128GB card? You can also check with support@unitronics.com to see if they see any problem with a 128GB card. 1 Quote Link to comment Share on other sites More sharing options...
chand345 Posted June 28, 2019 Author Report Share Posted June 28, 2019 We found a 16GB card and it worked! Thanks for helping, not sure why we were using a 128GB it's just what we were given to use. Quote Link to comment Share on other sites More sharing options...
MVP 2023 Flex727 Posted June 28, 2019 MVP 2023 Report Share Posted June 28, 2019 Good to hear! Thanks for letting us know. 1 Quote Link to comment Share on other sites More sharing options...
AlexUT Posted June 30, 2019 Report Share Posted June 30, 2019 Just to update all of you: There are number of Articles at Unitronics Help Center: - Open in Internet Browser next page: https://support.unitronics.com/ Search for SD, and read articles. To summarize: - SD Card should be formatted as FAT32 with only one partition This limits SD card capacity to 32GB. Good to save anything. Hope this information helps to eliminate errors. B.R. Quote Link to comment Share on other sites More sharing options...
MVP 2023 Flex727 Posted June 30, 2019 MVP 2023 Report Share Posted June 30, 2019 11 hours ago, AlexUT said: This limits SD card capacity to 32GB. Thanks @AlexUT. The limitation is not a Unitronics limit, but is a function of FAT32 addressing. There are workarounds in Windows, but not in PLCs. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.