# Unable to Connect to Omron PLC Using FINS/TCP in Ignition

**URL:** <https://forum.inductiveautomation.com/t/unable-to-connect-to-omron-plc-using-fins-tcp-in-ignition/116994>\
**Category:** Ignition\
**Created:** [September 4, 2026, 12:25pm UTC](https://forum.inductiveautomation.com/t/unable-to-connect-to-omron-plc-using-fins-tcp-in-ignition/116994 "2026-09-04T12:25:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![umasankar27406](https://avatars.discourse-cdn.com/v4/letter/u/4bbf92/32.png) [@umasankar27406](https://forum.inductiveautomation.com/u/umasankar27406)\
**Post date:** [September 4, 2026, 12:25pm UTC](https://forum.inductiveautomation.com/t/unable-to-connect-to-omron-plc-using-fins-tcp-in-ignition/116994/1 "2026-09-04T12:25:34Z")

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Hi everyone,

I am trying to connect an **Omron PLC** to **Ignition 8.1.44** using the **Omron FINS/TCP protocol** , but I am unable to establish communication.

The PLC is reachable on the network, but the FINS/TCP connection from Ignition is not connecting.

I have checked the following:

- PLC IP address
- Network connectivity / ping
- FINS/TCP configuration
- PLC network settings
- Ignition device configuration
- FINS node/network/address settings

However, the connection is still not successful.

Could someone please guide me on:

1. What are the **required FINS/TCP settings in the Omron PLC**?
2. What settings should be configured in **Ignition's Omron FINS/TCP driver**?
3. How can I verify whether the PLC is actually listening on the **FINS/TCP port (9600)**?
4. Are there any specific **FINS Network Number, Node Number, or Unit Number** settings that need to match between Ignition and the PLC?
5. Is there any recommended way to **troubleshoot FINS/TCP communication from Ignition**?

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<div class="post-metadata">

**Author:** ![smcfarlane](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/smcfarlane/32/42150_2.png) [@smcfarlane](https://forum.inductiveautomation.com/u/smcfarlane)\
**Post date:** [September 4, 2026, 1:44pm UTC](https://forum.inductiveautomation.com/t/unable-to-connect-to-omron-plc-using-fins-tcp-in-ignition/116994/2 "2026-09-04T13:44:36Z")

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Being able to ping the device does not mean that the port is open. Make sure you have a firewall rule for port 9600.

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**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [September 4, 2026, 2:29pm UTC](https://forum.inductiveautomation.com/t/unable-to-connect-to-omron-plc-using-fins-tcp-in-ignition/116994/3 "2026-09-04T14:29:23Z")

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Also, knowing what PLC model you're trying to connect to may help.

Here is a working config to a CJ1:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/e/1e683d8f9ddd1fe0f4c981e627f10bbbaadd2ff1.png)

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<div class="post-metadata">

**Author:** ![umasankar27406](https://avatars.discourse-cdn.com/v4/letter/u/4bbf92/32.png) [@umasankar27406](https://forum.inductiveautomation.com/u/umasankar27406)\
**Post date:** [September 7, 2026, 9:28am UTC](https://forum.inductiveautomation.com/t/unable-to-connect-to-omron-plc-using-fins-tcp-in-ignition/116994/4 "2026-09-07T09:28:07Z")

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I was trying to connect Omron PLC Model: CP1L -E