# Error writing opc-UA **URL:** \ **Category:** Ignition\ **Created:** [April 19, 2013, 4:24pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281 "2013-04-19T16:24:06Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\ **Post date:** [April 19, 2013, 4:24pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/1 "2013-04-19T16:24:06Z")
I use 7.6-beta5 I try to use Beckhoff OPC-UA Server. Tag reads are OK. But I have error on Tag writes. With the opcUA client from beckhoff tag write are OK. the message is : [[default]test2] Error writing to OPC address [[TC3]ns=4:s=GVL.test2]. Result code: Unknown Any idea ? ![:scratch:](https://us1.discourse-cdn.com/inductiveautomation/original/1X/76d1620bec252bfac07050c889ff5a91dc8a9c25.gif ":scratch:") How to activate extended wrie log ? ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/7/78721ecdf4608447b4bc8b6bba3b3d5910745952.PNG) ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/e/e9d9bd3c10fb6d1d3e65a3dd160f70e28535b522.PNG) ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/0/0cbcae29cf4246221602b2b6f1763e0f1e636235.PNG) ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [April 19, 2013, 4:26pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/2 "2013-04-19T16:26:46Z")
Search for a logger called “UAQuality”, turn it to DEBUG, and then try the write again. Then export your logs.bin.gz and attach it to this post or send it to the support email please 🙂 ---
**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\ **Post date:** [April 19, 2013, 4:33pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/3 "2013-04-19T16:33:27Z")
write logs is : [ERROR] 18:31:29 Provider[default] [[default]test2] Error writing to OPC address [[TC3]ns=4:s=GVL.test2]. Result code: Unknown (D) 18:31:29 UAQuality No DataQuality mapped for StatusCode: StatusCode[Severity=Bad, Subcode=Bad\_WriteNotSupported] ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [April 19, 2013, 4:55pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/4 "2013-04-19T16:55:31Z")
The Beckhoff server is not accepting the write for some reason - I don’t know why. All it’s saying is that the write is not supported. I’ve tested writing to tags on the UA sample server and am not having any issues, including a UInt16 and UInt32 tag which I suspected might have been the problem. Can you find some kind of logging to turn on for the server that might indicate why it’s not allowing the write? ---
**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\ **Post date:** [April 22, 2013, 7:20am UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/5 "2013-04-22T07:20:27Z")
Can’ fin some kind of oggingto tun on the server. I’ve tried another client (opua expert) reads and writes are both OK. A question, how to configure “Anonymous” opc user in Ignition for Authentification settings ? ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/e/e81fb0284a7423d88f08cccc8e45a03d46792dcb.PNG) ---
**Author:** ![gnguyen](https://avatars.discourse-cdn.com/v4/letter/g/41988e/32.png) [@gnguyen](https://forum.inductiveautomation.com/u/gnguyen)\ **Post date:** [April 22, 2013, 1:25pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/6 "2013-04-22T13:25:57Z")
Hi Lionel, Just leave blank the user name and password in opc connection\>Connection Settings. ---
**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\ **Post date:** [April 22, 2013, 1:44pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/7 "2013-04-22T13:44:06Z")
Thanks Gilles, But tag writes command from ignition return “unkwown” again there is a problem somewhere else… ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [April 22, 2013, 2:39pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/8 "2013-04-22T14:39:20Z")
Can you write to this tag on the Beckhoff server in Ignition 7.5 or is it just 7.6? ---
**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\ **Post date:** [April 22, 2013, 3:35pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/9 "2013-04-22T15:35:08Z")
I try a write request with another gateway in version : 7.5.6 (b1317) It’s OK ! The trouble is in the 7.6.0-beta5 (b1799) ![:scratch:](https://us1.discourse-cdn.com/inductiveautomation/original/1X/76d1620bec252bfac07050c889ff5a91dc8a9c25.gif ":scratch:") ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [April 22, 2013, 4:28pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/10 "2013-04-22T16:28:12Z")
[quote=“mazeyrat”]I try a write request with another gateway in version : 7.5.6 (b1317) It’s OK ! The trouble is in the 7.6.0-beta5 (b1799) ![:scratch:](https://us1.discourse-cdn.com/inductiveautomation/original/1X/76d1620bec252bfac07050c889ff5a91dc8a9c25.gif ":scratch:")[/quote] Alright, I’ll try and figure out what’s going on… ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [April 22, 2013, 6:28pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/11 "2013-04-22T18:28:58Z")
Just figured out what’s going on here at the interop today 🙂 Will be fixed for 1.6.0, hoping to sneak it into 1.5.7. ---
**Author:** ![gnguyen](https://avatars.discourse-cdn.com/v4/letter/g/41988e/32.png) [@gnguyen](https://forum.inductiveautomation.com/u/gnguyen)\ **Post date:** [April 22, 2013, 6:41pm UTC](https://forum.inductiveautomation.com/t/error-writing-opc-ua/6281/12 "2013-04-22T18:41:21Z")
Hey great.