# Heartbeat script having effects system wide

**URL:** <https://forum.inductiveautomation.com/t/heartbeat-script-having-effects-system-wide/21689>\
**Category:** Ignition\
**Created:** [January 4, 2019, 1:40pm UTC](https://forum.inductiveautomation.com/t/heartbeat-script-having-effects-system-wide/21689 "2019-01-04T13:40:19Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Matrix\_Engineering](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/matrix_engineering/32/19781_2.png) [@Matrix\_Engineering](https://forum.inductiveautomation.com/u/Matrix_Engineering)\
**Post date:** [January 10, 2021, 2:32pm UTC](https://forum.inductiveautomation.com/t/heartbeat-script-having-effects-system-wide/21689/3 "2021-01-10T14:32:31Z")

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> [@PLC Fault- Ignition HMI](http://forum.inductiveautomation.com/t/plc-fault-ignition-hmi/23968/2):
>
> 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.

Have the HeartBeat **generated** by the PLC and **monitored** by Ignition.

@pturmel

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