# \#readuserblock

**URL:** https://forums.digi.com/tag/readuserblock/1505.md

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## [How to safely read/write from UserBlock for RCM4100](https://forums.digi.com/t/how-to-safely-read-write-from-userblock-for-rcm4100/13330)

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**Author:** [@DBurghard](https://forums.digi.com/u/DBurghard)\
**Replies:** 3\
**Last updated:** [July 18, 2014, 3:16pm UTC](https://forums.digi.com/t/how-to-safely-read-write-from-userblock-for-rcm4100/13330 "2014-07-18T15:16:00Z")

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I’m using an RCM4100 or RCM4200. I have an array of 100 floating point user setpoint numbers that I would like to store in the User Block area. This is my first program with this type of processor. I currently have my…