# Siemens Word.Bit addressing clarity

**URL:** <https://forum.inductiveautomation.com/t/siemens-word-bit-addressing-clarity/80850>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [October 23, 2023, 2:11pm UTC](https://forum.inductiveautomation.com/t/siemens-word-bit-addressing-clarity/80850 "2023-10-23T14:11:59Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mjohnson0238](https://avatars.discourse-cdn.com/v4/letter/m/4bbf92/32.png) [@mjohnson0238](https://forum.inductiveautomation.com/u/mjohnson0238)\
**Post date:** [October 23, 2023, 2:11pm UTC](https://forum.inductiveautomation.com/t/siemens-word-bit-addressing-clarity/80850/1 "2023-10-23T14:11:59Z")

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Good day all. I have read a few posts and whatnot regarding bit addressing for words. To make sure I am clear, it would be like this correct?

ns=1;s=[Feritte Box Tester - Boardroom]DB900,W208.2

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [October 23, 2023, 2:14pm UTC](https://forum.inductiveautomation.com/t/siemens-word-bit-addressing-clarity/80850/2 "2023-10-23T14:14:41Z")

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No. Should be:

```plaintext
ns=1;s=[Feritte Box Tester - Boardroom]DB900,X208.2

```

[https://docs.inductiveautomation.com/display/DOC81/Siemens#Siemens-AddressSyntax](https://docs.inductiveautomation.com/display/DOC81/Siemens#Siemens-AddressSyntax)

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<div class="post-metadata">

**Author:** ![mjohnson0238](https://avatars.discourse-cdn.com/v4/letter/m/4bbf92/32.png) [@mjohnson0238](https://forum.inductiveautomation.com/u/mjohnson0238)\
**Post date:** [October 23, 2023, 2:16pm UTC](https://forum.inductiveautomation.com/t/siemens-word-bit-addressing-clarity/80850/3 "2023-10-23T14:16:41Z")

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OK, even though its a word, since I am reading bit level, I need to use the "X" to define that. Thanks

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<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [October 23, 2023, 2:18pm UTC](https://forum.inductiveautomation.com/t/siemens-word-bit-addressing-clarity/80850/4 "2023-10-23T14:18:09Z")

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But it isn't a word. Data blocks are just bytes. They are interpreted otherwise by code when addressed as something else, but they are just bytes to the protocol. That's why the offset is always a byte offset.

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<div class="post-metadata">

**Author:** ![mjohnson0238](https://avatars.discourse-cdn.com/v4/letter/m/4bbf92/32.png) [@mjohnson0238](https://forum.inductiveautomation.com/u/mjohnson0238)\
**Post date:** [October 23, 2023, 2:18pm UTC](https://forum.inductiveautomation.com/t/siemens-word-bit-addressing-clarity/80850/5 "2023-10-23T14:18:45Z")

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I understand now. Thank you sir!