# Cirrus Link Transmission

**URL:** <https://forum.inductiveautomation.com/t/cirrus-link-transmission/84422>\
**Category:** Ignition\
**Created:** [January 18, 2024, 1:07am UTC](https://forum.inductiveautomation.com/t/cirrus-link-transmission/84422 "2024-01-18T01:07:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ritchie\_Rocha](https://avatars.discourse-cdn.com/v4/letter/r/91b2a8/32.png) [@Ritchie\_Rocha](https://forum.inductiveautomation.com/u/Ritchie_Rocha)\
**Post date:** [January 18, 2024, 1:07am UTC](https://forum.inductiveautomation.com/t/cirrus-link-transmission/84422/1 "2024-01-18T01:07:14Z")

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Was wondering if anyone has come across this issue with the Transmission module where it is sending data in what seems to be an unparsed format. If I script the payload, it transmits correctly to HiveMQ.

Data just looks like.

�����1

Tag3�����1 8JP(

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/7/6752e61eb59f62a98b80552397ccf5be1bb0f4d5.png)

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**Author:** ![Horacio\_Cornejo](https://avatars.discourse-cdn.com/v4/letter/h/f14d63/32.png) [@Horacio\_Cornejo](https://forum.inductiveautomation.com/u/Horacio_Cornejo)\
**Post date:** [June 5, 2024, 9:06pm UTC](https://forum.inductiveautomation.com/t/cirrus-link-transmission/84422/2 "2024-06-05T21:06:54Z")

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The SparkplugB specification states that payloads need to be encoded with Google Protocol Buffers (ProtoBuf). Check out the specification for more details: [Sparkplug Topic Namespace and State ManagementV2.2-with appendix B format - Eclipse.pdf](https://www.eclipse.org/tahu/spec/Sparkplug%20Topic%20Namespace%20and%20State%20ManagementV2.2-with%20appendix%20B%20format%20-%20Eclipse.pdf)