# Source Timestamp in SFB33 Siemens block

**URL:** <https://forum.inductiveautomation.com/t/source-timestamp-in-sfb33-siemens-block/117511>\
**Category:** Ignition\
**Tags:** opcua, ignition83, siemens\
**Created:** [October 16, 2026, 8:01am UTC](https://forum.inductiveautomation.com/t/source-timestamp-in-sfb33-siemens-block/117511 "2026-10-16T08:01:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![alberto.vazquez](https://avatars.discourse-cdn.com/v4/letter/a/34f0e0/32.png) [@alberto.vazquez](https://forum.inductiveautomation.com/u/alberto.vazquez)\
**Post date:** [October 16, 2026, 8:01am UTC](https://forum.inductiveautomation.com/t/source-timestamp-in-sfb33-siemens-block/117511/1 "2026-10-16T08:01:16Z")

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Hi,

Just throwing a bottle to the sea. I have a Siemens S7-400 with an SFB33 block that natively stores the timestamp at which it was activated. You can recover this data via a WinCC supervision, and in AVEVA via the siemens driver, however there is no clear way to get the data with the siemens driver as it is not an "output" of the block.

Does anyone had any luck accessing the timestamp of such blocks via the siemens driver ?

Thanks !