# PLC Fault- Ignition HMI

**URL:** <https://forum.inductiveautomation.com/t/plc-fault-ignition-hmi/23968>\
**Category:** Ignition\
**Tags:** ignition79\
**Created:** [April 9, 2019, 7:55pm UTC](https://forum.inductiveautomation.com/t/plc-fault-ignition-hmi/23968 "2019-04-09T19:55:03Z")\
**Posts on this page:** 1\
**Showing post:** 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:** [April 9, 2019, 8:09pm UTC](https://forum.inductiveautomation.com/t/plc-fault-ignition-hmi/23968/2 "2019-04-09T20:09:18Z")

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Monitor the quality of the tags to pick up connection breakage. Some drivers expose a diagnostic tag you can monitor. Otherwise, you might need a rolling counter or other heartbeat in your PLC that would indicated continued code execution.

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