# OPC alarms

**URL:** <https://forum.inductiveautomation.com/t/opc-alarms/8222>\
**Category:** Ignition\
**Created:** [March 26, 2014, 7:57pm UTC](https://forum.inductiveautomation.com/t/opc-alarms/8222 "2014-03-26T19:57:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![cdafonseca](https://avatars.discourse-cdn.com/v4/letter/c/c6cbf5/32.png) [@cdafonseca](https://forum.inductiveautomation.com/u/cdafonseca)\
**Post date:** [March 26, 2014, 7:57pm UTC](https://forum.inductiveautomation.com/t/opc-alarms/8222/1 "2014-03-26T19:57:52Z")

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Hi Guys!  
I’m working on a Ignition based HMI which have to to display alarms and allow to commands like Ack. The core system is implemented in inherited wonderware technology. Does Ignition 7.6.4 support subscribing to alarms and event tags? I’m successfully communicating by OPC-DA to this inherited system but the HMI alarms section are pending… any recommendation will be usefull!

Thank you

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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:** [March 26, 2014, 8:22pm UTC](https://forum.inductiveautomation.com/t/opc-alarms/8222/2 "2014-03-26T20:22:00Z")

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Unfortunately we don’t have support for either DA-based or UA-based alarms.

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**Author:** ![cdafonseca](https://avatars.discourse-cdn.com/v4/letter/c/c6cbf5/32.png) [@cdafonseca](https://forum.inductiveautomation.com/u/cdafonseca)\
**Post date:** [March 26, 2014, 8:46pm UTC](https://forum.inductiveautomation.com/t/opc-alarms/8222/3 "2014-03-26T20:46:37Z")

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Thank you for your answer