EDLT Non-Volatile Memory

Discussion in 'C-Bus Wired Hardware' started by Ks04, Jan 12, 2021.

  1. Ks04

    Ks04

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    Hi Team,

    I read on another thread that the DLTs have a limited write of 100,000 label changes in the non-volatile memory before they max out. Does the same limitation apply to the newer eDLTs? Wondering if I need to be conscious about updating the temperature so frequently or if these are safer.

    Thanks
     
    Ks04, Jan 12, 2021
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  2. Ks04

    chromus

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    There has been a reply to a similar question saying that this was no longer an issue as the type of memory in use has orders of magnitude more writes.

    FWIW I am 7 years in and have had temps on mine for all of that time and no issues.
     
    chromus, Jan 12, 2021
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  3. Ks04

    Ks04

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    Can anyone confirm the handling of labels on the EDLT and number of writes? I'm now using quite a few label updates (Door Status, Alarm, Temperatures, AC-Status) and don't want to cause anything untoward by doing so.

    I've read ranging comments on the older DLTs (10,000; 100,000; 1,000,000)... there must be some way to confirm this?
     
    Ks04, Sep 8, 2022
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  4. Ks04

    Wonkey

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    You may be lucky and get an answer from SE, but I to can confirm that after years of temperature, and power values being continually displayed on my eDLT I have never had a problem. As previously mentioned the number of rewrites is not a problem.
     
    Wonkey, Sep 8, 2022
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  5. Ks04

    Ks04

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    Got an answer from SE incase others are interested...

    Dynamic Labels along with other data for eDLTs gets written to EEPROM. The device used is good for at least 1,000,000 writes. This equates to more that 130 writes to each location every day for 20 years.​
     
    Ks04, Sep 14, 2022
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  6. Ks04

    chromus

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    I had some of the first batch of EDLTs in the wild, I have had temps updated every 60 secs for 8 years and they are fine.

    60 writes per hour
    x 24 hours
    x 365 days
    x 8 years
    = > 4million and counting.
     
    chromus, Sep 22, 2022
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