# OPC tag not working

**URL:** <https://forum.inductiveautomation.com/t/opc-tag-not-working/54680>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [January 5, 2022, 3:03pm UTC](https://forum.inductiveautomation.com/t/opc-tag-not-working/54680 "2022-01-05T15:03:15Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![urvishmehta92](https://avatars.discourse-cdn.com/v4/letter/u/f475e1/32.png) [@urvishmehta92](https://forum.inductiveautomation.com/u/urvishmehta92)\
**Post date:** [January 5, 2022, 3:03pm UTC](https://forum.inductiveautomation.com/t/opc-tag-not-working/54680/1 "2022-01-05T15:03:15Z")

</div>

Hello Everyone,  
I am connecting ET200SP to ignition. I created OPC Server on PLC and connection is successful. Few days back I did this process and everything worked fine even today those tags are working but the one I created today in PLC are showing up on OPC and able to grab it but in ignition it’s showing error for configuration while tags are literally identical. One thing I noticed is that in diagnostic It’s showing Leased:False and in the working tag it’s true. Please see pictures.

Thanks!!

 ![bad tag](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/8/b82913bc944b4f0cf600a1deb530577ad71f3803.png)  
 ![good tag](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/3/d330e67e8b7496f155f14e7c4ba7889daada1eb0.png)

---

<div class="post-metadata">

**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:** [January 5, 2022, 3:16pm UTC](https://forum.inductiveautomation.com/t/opc-tag-not-working/54680/2 "2022-01-05T15:16:16Z")

</div>

In v8+, the tag browser itself doesn’t make a subscription to tags, so any tag in a leased group, if nothing “real” is viewing it (binding), won’t be polled.

Bind the tag to a label and see.

---

<div class="post-metadata">

**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:** [January 5, 2022, 3:17pm UTC](https://forum.inductiveautomation.com/t/opc-tag-not-working/54680/3 "2022-01-05T15:17:38Z")

</div>

(Did you change your default tag group to leased? Probably not a good idea.)

---

<div class="post-metadata">

**Author:** ![urvishmehta92](https://avatars.discourse-cdn.com/v4/letter/u/f475e1/32.png) [@urvishmehta92](https://forum.inductiveautomation.com/u/urvishmehta92)\
**Post date:** [January 5, 2022, 3:59pm UTC](https://forum.inductiveautomation.com/t/opc-tag-not-working/54680/4 "2022-01-05T15:59:01Z")

</div>

No. I haven’t changed that setting. It’s in Direct mode. I noticed that I am able to write values from Ignition to PLC but not able to read.

---

<div class="post-metadata">

**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:** [January 5, 2022, 4:19pm UTC](https://forum.inductiveautomation.com/t/opc-tag-not-working/54680/5 "2022-01-05T16:19:30Z")

</div>

I’d start looking for reasons in your S8–you are using its built-in OPC, so I’ve got nothing.