# Alarms and historization

**URL:** <https://forum.inductiveautomation.com/t/alarms-and-historization/11026>\
**Category:** Module Development\
**Created:** [January 11, 2016, 3:05pm UTC](https://forum.inductiveautomation.com/t/alarms-and-historization/11026 "2016-01-11T15:05:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![PRAMANJ](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pramanj/32/66935_2.png) [@PRAMANJ](https://forum.inductiveautomation.com/u/PRAMANJ)\
**Post date:** [January 11, 2016, 3:05pm UTC](https://forum.inductiveautomation.com/t/alarms-and-historization/11026/1 "2016-01-11T15:05:10Z")

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Hi,  
How are Alarms and Historization translated from Ignition tag database to Ignition OPCUA server? Will the Alarm subscription and Historical data retrieval methods work properly on Ignition OPC US server?  
regards  
Prafull  
[http://www.pramanj.com](http://www.pramanj.com)

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [January 11, 2016, 3:45pm UTC](https://forum.inductiveautomation.com/t/alarms-and-historization/11026/2 "2016-01-11T15:45:28Z")

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No, the OPC-UA server does not support alarms or historical access.

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**Author:** ![PRAMANJ](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pramanj/32/66935_2.png) [@PRAMANJ](https://forum.inductiveautomation.com/u/PRAMANJ)\
**Post date:** [January 11, 2016, 5:19pm UTC](https://forum.inductiveautomation.com/t/alarms-and-historization/11026/3 "2016-01-11T17:19:36Z")

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Oh! I thought as much! Thanks for the confirmation.

best regards  
Prafull