# Connection with tag **URL:** \ **Category:** Ignition\ **Created:** [July 22, 2022, 6:47am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197 "2022-07-22T06:47:01Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![stefano.sforna](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@stefano.sforna](https://forum.inductiveautomation.com/u/stefano.sforna)\ **Post date:** [July 22, 2022, 6:47am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/1 "2022-07-22T06:47:01Z")
Goodmorning, sometimes, when open client, some control that use PLC tag, have a green icon, as if the tag of control don’t communicate with Siemens PLC: control don’t work properly. But in the gateway, Siemens PLC connection is ok and database connection is ok. what may be the reason??? Thank you Bye ![1658471660213](https://us1.discourse-cdn.com/inductiveautomation/original/3X/9/9/99b27b6e73b84bf1fab3a7821c24ebd244d8ce67.jpeg) ![1658471660253](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/2/32b8d7ab01ed2bd3016a7ea968fbcac52383ed6d.jpeg) ---
**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Post date:** [July 22, 2022, 9:08am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/2 "2022-07-22T09:08:56Z")
Hi, You use for PLC connection Ignition Siemens driver (not optimized db abslute) or opcua Siemens server (optimezed db symbolic)? ---
**Author:** ![stefano.sforna](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@stefano.sforna](https://forum.inductiveautomation.com/u/stefano.sforna)\ **Post date:** [July 22, 2022, 9:31am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/3 "2022-07-22T09:31:51Z")
I use Ignition Siemens driver (not optimized db abslute) ---
**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Post date:** [July 22, 2022, 10:24am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/4 "2022-07-22T10:24:26Z")
This green icon represents UNCERTAIN value like table: ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/2/f28242dc758c400e399214e201af51f85dbb2559.png) Check the browser tag list to check the diagnostics of each tag, or there must be something on the network that is causing to lose communication to PLC. Have you checked that the communication of the Client to PLC is always active and that no packets are lost? ---
**Author:** ![stefano.sforna](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@stefano.sforna](https://forum.inductiveautomation.com/u/stefano.sforna)\ **Post date:** [July 22, 2022, 11:29am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/5 "2022-07-22T11:29:20Z")
I only verified that gateway is connected with PLC Siemens in Device connection. I don’t have checked that the communication of the Client to PLC is always active and that no packets are lost ---
**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Post date:** [July 22, 2022, 11:44am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/6 "2022-07-22T11:44:00Z")
Sorry not client to plc, but gateway to plc, and client to gateway (if client and gateway are not same PC) ---
**Author:** ![stefano.sforna](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@stefano.sforna](https://forum.inductiveautomation.com/u/stefano.sforna)\ **Post date:** [July 22, 2022, 12:04pm UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/7 "2022-07-22T12:04:07Z")
Communication between Gateway and PLC is ok in Device Connection. Client and gateway stay in the same pc ---
**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Post date:** [July 22, 2022, 12:07pm UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/8 "2022-07-22T12:07:45Z")
Issue is SOMETIMES, but connection is restabilished after a time ? Only when you launch runtime client? Or also during runtime ? What version ignition you use ? ---
**Author:** ![stefano.sforna](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@stefano.sforna](https://forum.inductiveautomation.com/u/stefano.sforna)\ **Post date:** [July 22, 2022, 12:14pm UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/9 "2022-07-22T12:14:32Z")
Sometimes, not always, when switch on OC and so switch on gateway, there is this problem. Then, I restart Gateway and communication is OK, problem solved. Version of Ignition is 8.1.16. ---
**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Post date:** [July 22, 2022, 3:52pm UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/10 "2022-07-22T15:52:38Z")
> [@stefano.sforna](#): > > Sometimes, not always, when switch on OC and so switch on gateway, there is this problem I don't understand "switch to OC and switch on gateway" ... in runtime ? Without restarting gateway , communication is not reestablished after a time? ---
**Author:** ![stefano.sforna](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@stefano.sforna](https://forum.inductiveautomation.com/u/stefano.sforna)\ **Post date:** [July 24, 2022, 7:47am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/11 "2022-07-24T07:47:32Z")
No, is not restablished after a time ---
**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Post date:** [July 25, 2022, 5:41am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/12 "2022-07-25T05:41:30Z")
> [@m.pelagatti](#): > > “switch to OC and switch on gateway” What you mean ? ---
**Author:** ![stefano.sforna](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@stefano.sforna](https://forum.inductiveautomation.com/u/stefano.sforna)\ **Post date:** [July 25, 2022, 5:44am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/13 "2022-07-25T05:44:09Z")
Nothing, my error ---
**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Post date:** [July 25, 2022, 5:45am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/14 "2022-07-25T05:45:05Z")
Have you a screenshot? ---
**Author:** ![stefano.sforna](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@stefano.sforna](https://forum.inductiveautomation.com/u/stefano.sforna)\ **Post date:** [July 25, 2022, 5:46am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/15 "2022-07-25T05:46:20Z")
at the beginning of this form, I published two photo ---
**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Post date:** [July 25, 2022, 5:48am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/16 "2022-07-25T05:48:33Z")
OK i see, i don’t understand OC what you mean ? ---
**Author:** ![stefano.sforna](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@stefano.sforna](https://forum.inductiveautomation.com/u/stefano.sforna)\ **Post date:** [July 25, 2022, 5:52am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/17 "2022-07-25T05:52:07Z")
It’s my error, really is PC, personal computer ---
**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Post date:** [July 25, 2022, 6:00am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/18 "2022-07-25T06:00:22Z")
Ah ok, if you launch runtime from designer, PLC tags in tag browser , what quality code have ? ---
**Author:** ![stefano.sforna](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@stefano.sforna](https://forum.inductiveautomation.com/u/stefano.sforna)\ **Post date:** [July 25, 2022, 6:06am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/19 "2022-07-25T06:06:02Z")
I don’t see quality code of tags, but value of tags were written in italics, in different way ---
**Author:** ![m.pelagatti](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/m.pelagatti/32/68595_2.png) [@m.pelagatti](https://forum.inductiveautomation.com/u/m.pelagatti)\ **Post date:** [July 25, 2022, 6:21am UTC](https://forum.inductiveautomation.com/t/connection-with-tag/62197/20 "2022-07-25T06:21:34Z")
Ok , italic is when lost connection. In Gateway/logs have you seen what error come out? [Next page](https://forum.inductiveautomation.com/t/connection-with-tag/62197.md?page=2)