# OPC Quick Client and Designer

**URL:** <https://forum.inductiveautomation.com/t/opc-quick-client-and-designer/22035>\
**Category:** Ignition\
**Created:** [January 22, 2019, 12:36pm UTC](https://forum.inductiveautomation.com/t/opc-quick-client-and-designer/22035 "2019-01-22T12:36:41Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![mbrali00](https://avatars.discourse-cdn.com/v4/letter/m/4bbf92/32.png) [@mbrali00](https://forum.inductiveautomation.com/u/mbrali00)\
**Post date:** [January 22, 2019, 12:36pm UTC](https://forum.inductiveautomation.com/t/opc-quick-client-and-designer/22035/1 "2019-01-22T12:36:41Z")

</div>

I connected Ignition to a OPC-DA Server but it is not working in Desgner.  
In Quick Client I can read Heartbeat (Status: GOOD\_DATA, Quality: Good) but when I try to read Heartbeat in Designer it is not working, there is green question mark on the tag