# OPC-UA is not working properly

**URL:** <https://forum.inductiveautomation.com/t/opc-ua-is-not-working-properly/89428>\
**Category:** Ignition\
**Tags:** opcua, ignition81\
**Created:** [April 25, 2024, 6:36am UTC](https://forum.inductiveautomation.com/t/opc-ua-is-not-working-properly/89428 "2024-04-25T06:36:29Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![lindeng\_chen](https://avatars.discourse-cdn.com/v4/letter/l/c67d28/32.png) [@lindeng\_chen](https://forum.inductiveautomation.com/u/lindeng_chen)\
**Post date:** [April 25, 2024, 6:36am UTC](https://forum.inductiveautomation.com/t/opc-ua-is-not-working-properly/89428/1 "2024-04-25T06:36:29Z")

</div>

Hi:

 ![the bad connection](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/6/f6a3dbef92d3f8294afa411143c8ba44458e3737.png)  
After the OPCUA device is connected, the gateway shows as connected, but in reality, the value inside shows bad. Setting the driver to disable and then switching to enable cannot solve this problem. How should I solve this problem? Thank you

---

<div class="post-metadata">

**Author:** ![Hayden\_Watson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/hayden_watson/32/48792_2.png) [@Hayden\_Watson](https://forum.inductiveautomation.com/u/Hayden_Watson)\
**Post date:** [April 25, 2024, 6:38am UTC](https://forum.inductiveautomation.com/t/opc-ua-is-not-working-properly/89428/2 "2024-04-25T06:38:53Z")

</div>

what device driver are you using?

---

<div class="post-metadata">

**Author:** ![lindeng\_chen](https://avatars.discourse-cdn.com/v4/letter/l/c67d28/32.png) [@lindeng\_chen](https://forum.inductiveautomation.com/u/lindeng_chen)\
**Post date:** [April 25, 2024, 6:56am UTC](https://forum.inductiveautomation.com/t/opc-ua-is-not-working-properly/89428/3 "2024-04-25T06:56:40Z")

</div>

Omron NJ Driver

---

<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:** [April 25, 2024, 12:09pm UTC](https://forum.inductiveautomation.com/t/opc-ua-is-not-working-properly/89428/4 "2024-04-25T12:09:53Z")

</div>

Have you look at its diagnostics page?

Have you loaded that specific tag into the driver configuration? (You must export tags from Sysmac Studio and load them into the driver. Only those tags will work.)

If you need a driver that auto-browses Omron NJ/NX devices, consider this alternate driver:

> [@Automation Professionals' EtherNet/IP Communication Suite V2](https://forum.inductiveautomation.com/t/automation-professionals-ethernet-ip-communication-suite-v2/68190):
>
> Automation Professionals is pleased to announce its latest EtherNet/IP Communications Suite driver module, a major upgrade to its EtherNet/IP Class1 Communications module, as a Public Beta. As of April 15, 2023, this is now a Production Release. The primary new feature is its new Generic EtherNet/IP Client Driver, a drop-in replacement for IA's Logix V21+ driver and its Omron NJ/NX driver. It does work with older Logix processors, and also works with Rockwell's MicroLogix 8xx family (ethernet…

/shameless plug

---

<div class="post-metadata">

**Author:** ![lindeng\_chen](https://avatars.discourse-cdn.com/v4/letter/l/c67d28/32.png) [@lindeng\_chen](https://forum.inductiveautomation.com/u/lindeng_chen)\
**Post date:** [May 13, 2024, 9:06am UTC](https://forum.inductiveautomation.com/t/opc-ua-is-not-working-properly/89428/5 "2024-05-13T09:06:20Z")

</div>

The PLC model we use is OmronNJ-501. We export the variable table from the Omron program, then create the omronNJ driver in the ignition gateway, and import the variables into the OmronNJ driver. Read the variables of the ignition gateway in the designer, and the value of the tag is always Bad. What’s the reason for the above problem?

 ![企业微信截图_17155897615948](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/e/2ef31d8f36cb0a3e5f7d7fbf3d7b8f2cf8740476.png)  
 ![企业微信截图_17155897781054](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/a/fa74dc450e5cb90ded9c6af5059eaf8f6e9bd2e9.png)  
 ![企业微信截图_17155898027523](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/b/4b5fe3758ed19f1ef834f0ac4d52b028f4b344d7.png)

---

<div class="post-metadata">

**Author:** ![bschroeder](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bschroeder/32/13260_2.png) [@bschroeder](https://forum.inductiveautomation.com/u/bschroeder)\
**Post date:** [May 13, 2024, 11:34am UTC](https://forum.inductiveautomation.com/t/opc-ua-is-not-working-properly/89428/6 "2024-05-13T11:34:36Z")

</div>

Does the tag diagnostics show anything for a tag that is bad?

---

<div class="post-metadata">

**Author:** ![lindeng\_chen](https://avatars.discourse-cdn.com/v4/letter/l/c67d28/32.png) [@lindeng\_chen](https://forum.inductiveautomation.com/u/lindeng_chen)\
**Post date:** [May 14, 2024, 1:41am UTC](https://forum.inductiveautomation.com/t/opc-ua-is-not-working-properly/89428/7 "2024-05-14T01:41:42Z")

</div>

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/6/b66d1a3710d57b18c347b36c46b78686ed2b9401.png)

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/4/e47428b5b3c57d214183afe0e9bc112a9bded640.png)