# How to connect TCP driver device

**URL:** <https://forum.inductiveautomation.com/t/how-to-connect-tcp-driver-device/67770>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [December 19, 2022, 3:45am UTC](https://forum.inductiveautomation.com/t/how-to-connect-tcp-driver-device/67770 "2022-12-19T03:45:45Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Lina\_Su](https://avatars.discourse-cdn.com/v4/letter/l/7ba0ec/32.png) [@Lina\_Su](https://forum.inductiveautomation.com/u/Lina_Su)\
**Post date:** [December 19, 2022, 3:45am UTC](https://forum.inductiveautomation.com/t/how-to-connect-tcp-driver-device/67770/1 "2022-12-19T03:45:45Z")

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I am trying to connect one of my device which is support TCP/IP and SCPI Language, which is Standard Commands for Programmable Instruments) is an ASCII-based instrument command language.  
I created the connection using TCP driver , and it shows devices is connected.  
And I go to OPC quick client with Subscription , I can see value in "MessageBytes" is updating, though I can't Parse the byte to what I real need, but at least something is coming in, but nothing displays at "Message" address.

And when I import the tags into designer, and I can see a "Array[0]" shows at "MessageBytes" .

Can anyone guide me on how this can work. There is very limited technical document I can find in user manual and university videos, thanks in advance.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/5/7/570f283a258ff36548f618455116593c2d347ee5.png)  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/3/e3e3534d4a115618b27b42cd57d9e5727327574a.png)  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/4/e4698f1608d390ee46fb6c8cd6a54b75340dcdd9.png)

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**Author:** ![plo](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/plo/32/33875_2.png) [@plo](https://forum.inductiveautomation.com/u/plo)\
**Post date:** [December 21, 2022, 8:09pm UTC](https://forum.inductiveautomation.com/t/how-to-connect-tcp-driver-device/67770/2 "2022-12-21T20:09:52Z")

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Hello Lina\_Su,

Are you able to confirm that your TCP Device is sending a message properly? A wireshark may help troubleshoot here.

But I would recommend opening up a support ticket with us so that a Support Engineer can help you troubleshoot this further. [https://inductiveautomation.com/support/home/](https://inductiveautomation.com/support/home/)

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**Author:** ![John\_John](https://avatars.discourse-cdn.com/v4/letter/j/8797f3/32.png) [@John\_John](https://forum.inductiveautomation.com/u/John_John)\
**Post date:** [March 14, 2023, 10:34am UTC](https://forum.inductiveautomation.com/t/how-to-connect-tcp-driver-device/67770/3 "2023-03-14T10:34:15Z")

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I am also facing same issue. Any update on this?

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<div class="post-metadata">

**Author:** ![Lina\_Su](https://avatars.discourse-cdn.com/v4/letter/l/7ba0ec/32.png) [@Lina\_Su](https://forum.inductiveautomation.com/u/Lina_Su)\
**Post date:** [March 15, 2023, 12:17am UTC](https://forum.inductiveautomation.com/t/how-to-connect-tcp-driver-device/67770/4 "2023-03-15T00:17:24Z")

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I did not work it out yet, but I find project shared by other guys, should be helpful, you can study, we can discuss.

[Ignition Exchange | Inductive Automation](https://www.inductiveautomation.com/exchange/2303/overview)