# \[BUG ?\] Ignition 8.0.5 - udt parameter in opcItemPath with caracter :

**URL:** <https://forum.inductiveautomation.com/t/bug-ignition-8-0-5-udt-parameter-in-opcitempath-with-caracter/29188>\
**Category:** Ignition Early Access\
**Tags:** ignition80\
**Created:** [October 18, 2019, 10:15am UTC](https://forum.inductiveautomation.com/t/bug-ignition-8-0-5-udt-parameter-in-opcitempath-with-caracter/29188 "2019-10-18T10:15:21Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**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:** [October 18, 2019, 10:15am UTC](https://forum.inductiveautomation.com/t/bug-ignition-8-0-5-udt-parameter-in-opcitempath-with-caracter/29188/1 "2019-10-18T10:15:21Z")

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With Ignition **8.0.5** :

opcItemPath in an udt if composed as follow:

opcItemPath value = {opcDebut}[{opcDevice}]TABLE:1.3.6.1.2.1.25.3.3.1.2  
udt parameters:  
opcDebut value = ns=1;s=  
opcDevice value = ESX\_1

if I suppress the **" : "** after TABLE,  
opcItemPath value = {opcDebut}[{opcDevice}]TABLE1.3.6.1.2.1.25.3.3.1.2  
opcItemPath value is correct = [ESX\_1]TABLE:1.3.6.1.2.1.25.3.3.1.2  
(…after restarting Ignition, opcItemPath is wrong again ???)

With Ignition **7.9.12** , the **" : "** is allowed  
ns=1;s=[ESX\_1]TABLE:1.3.6.1.2.1.25.3.3.1.2

**Is it intentional in V8.0 for the parameter computation ?**

As a side note, if I directly put the string opcItemPath value = [ESX\_1]TABLE:1.3.6.1.2.1.25.3.3.1.2,  
It’s OK, the opc item return the good value !

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<div class="post-metadata">

**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:** [October 25, 2019, 2:48pm UTC](https://forum.inductiveautomation.com/t/bug-ignition-8-0-5-udt-parameter-in-opcitempath-with-caracter/29188/2 "2019-10-25T14:48:31Z")

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@awalker  
I’ve upgrade to the last 8.0.6 nightly and I still have this issue.

7.9

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/5/50590010c0b7ce7955d29d9e78e00a2fed7eed87.png)

8.0.6  
the replace of udt parameter value is not done…

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/a/a77443c590e531dbcbd2032181abefa7b3d1fc93.png)

When I edit the UDT:  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/e/e128db9c1660e57351a5cd2b5c090ba4bbcf805d.png)

I commit

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/1/172d6e79f01287e7b969713dc8b4fcbbf1456671.png)  
Apply

When I open again the udt def, the binding is broken:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/b/bcc513f9cb180949326c938ab478d580d2151a60.png)

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<div class="post-metadata">

**Author:** ![awalker](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/awalker/32/6874_2.png) [@awalker](https://forum.inductiveautomation.com/u/awalker)\
**Post date:** [October 28, 2019, 6:38pm UTC](https://forum.inductiveautomation.com/t/bug-ignition-8-0-5-udt-parameter-in-opcitempath-with-caracter/29188/3 "2019-10-28T18:38:53Z")

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Hi @mazeyrat, I’m going to have someone look in to this and get back to you as soon as possible.

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<div class="post-metadata">

**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:** [October 28, 2019, 6:48pm UTC](https://forum.inductiveautomation.com/t/bug-ignition-8-0-5-udt-parameter-in-opcitempath-with-caracter/29188/4 "2019-10-28T18:48:53Z")

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I’ve found a mistake in the Json file used to import udt definition.  
OPC item path was string instead of a binding.  
After deleting and recreating udt and instances, it is OK.