# Show If PLC Is Connected \[Micro 820\]

**URL:** <https://forum.inductiveautomation.com/t/show-if-plc-is-connected-micro-820/58854>\
**Category:** Ignition\
**Created:** [April 26, 2022, 8:46am UTC](https://forum.inductiveautomation.com/t/show-if-plc-is-connected-micro-820/58854 "2022-04-26T08:46:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![tzbh1234](https://avatars.discourse-cdn.com/v4/letter/t/c67d28/32.png) [@tzbh1234](https://forum.inductiveautomation.com/u/tzbh1234)\
**Post date:** [April 26, 2022, 8:46am UTC](https://forum.inductiveautomation.com/t/show-if-plc-is-connected-micro-820/58854/1 "2022-04-26T08:46:23Z")

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Hi, I have Ignition 7.9 and micro820 PLC with Kepware OPC Server  
I want to show on screen if the PLC has connection so I search a bit of this indication.  
I Browse tags in ignition OPC tag path and show the folders in the picture:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/8/1/81c5ff6b8f53d5fddebcec60b2918e778717d8bc.png)

which tag I need to choose if I want check PLC communication?  
Thanks.

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<div class="post-metadata">

**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [April 26, 2022, 3:40pm UTC](https://forum.inductiveautomation.com/t/show-if-plc-is-connected-micro-820/58854/2 "2022-04-26T15:40:09Z")

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I would imagine Error/NoError.

I usually set up a heatbeat tag in the PLC, then monitor for no change.