7/7/2021 10:15 PM | |
Joined: 9/27/2006 Last visit: 8/29/2024 Posts: 12280 Rating:
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Hello DSI; Read this presentation about the power supply you are checking out, it gives an explanation of the 20 ms buffering time parameter: https://www.totallyintegratedautomation.com/2017/08/power-buffer-reduces-downtime/ "The PS 60W 24/48/60V DC HF system power supply with buffer supports the power supply to the backplane of the S7-1500 CPU during power failures just long enough to make all of the CPU data retentive. This module – which has no battery and therefore requires no maintenance – provides a power buffer so the CPU has time to write current information into memory. This enables the CPU to store the entire work memory (data) to non-volatile memory so the program will restart in the same operating status." Hope this helps, Daniel Chartier |
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11/10/2023 12:12 AM | |
Joined: 3/30/2018 Last visit: 7/28/2024 Posts: 1 Rating:
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Hi Daniel, where can I find that presentation, seems that the page is no longer available, I just installed into my panel and it's working great!!! but I would like to understand how it actually works.
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11/18/2023 2:47 PM | |
Joined: 9/27/2006 Last visit: 8/29/2024 Posts: 12280 Rating:
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Hello M.I. Mauro Machuca; The artcle I presented (from totalyintegratedautomation.com) is no longer available, 2 years after it was published. The closest I can find now is the official manual from Siemens: - Power supply module PS 60W 24/48/60VDC HF (6ES7505-0RB00-0AB0 https://support.industry.siemens.com/cs/ca/en/view/109746400 The manual decribes the retentivity support function of ths power supply unit, but gives little description of the mechanism that allows this to operate, unfortunately. See the attached screenshot. Hope this helps, |
Last edited by: dchartier at: 11/18/2023 14:47:48 |
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