# Connection between PLC and OPC

**URL:** <https://forum.inductiveautomation.com/t/connection-between-plc-and-opc/68682>\
**Category:** General Discussion\
**Created:** [January 17, 2023, 6:12pm UTC](https://forum.inductiveautomation.com/t/connection-between-plc-and-opc/68682 "2023-01-17T18:12:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Miguel\_Alferez](https://avatars.discourse-cdn.com/v4/letter/m/dfb087/32.png) [@Miguel\_Alferez](https://forum.inductiveautomation.com/u/Miguel_Alferez)\
**Post date:** [January 17, 2023, 6:12pm UTC](https://forum.inductiveautomation.com/t/connection-between-plc-and-opc/68682/1 "2023-01-17T18:12:32Z")

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Regards

_IP PLC: 192.168.0.1 6ES7 511-TK01-0AB0_  
_IP OPC 192.168.0.3_  
It was verified that PLC and OPC are in the same network, using CMD and ping.

In the Tia portal operations tree, you can see the components that are networked with the PLC including it.  
however, the OPC just doesn't show up.

![arbol](https://us1.discourse-cdn.com/inductiveautomation/original/3X/9/b/9bd84adc4a16c243111b27cceebacfa6a8d3dbc2.jpeg)  
if we try to download the hardware from the PLC to the OPC, in the Tia portal it indicates that the component does not respond, referring to the OPC.

 ![sin conexion](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/0/40e362eb93564125d25638d84f1e8df3f6786132.jpeg)  
For the connection between the PLC and the OPC, the GSD pc System is used, with the S7 connection.  
 ![s7 conection](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/7/b762b10dfd9706475338395b7f74e09fa98f8d8e.jpeg)

Does anyone have a solution to this problem that they can share with me?  
Thanks!

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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:** [January 19, 2023, 12:14pm UTC](https://forum.inductiveautomation.com/t/connection-between-plc-and-opc/68682/2 "2023-01-19T12:14:36Z")

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How does this question corellate to Ignition?

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**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:** [January 19, 2023, 1:18pm UTC](https://forum.inductiveautomation.com/t/connection-between-plc-and-opc/68682/3 "2023-01-19T13:18:45Z")

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It's in the general discussion category... General automation topics are fine here. (I don't have an answer, though.)

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**Author:** ![zxcslo](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/zxcslo/32/61610_2.png) [@zxcslo](https://forum.inductiveautomation.com/u/zxcslo)\
**Post date:** [January 19, 2023, 6:03pm UTC](https://forum.inductiveautomation.com/t/connection-between-plc-and-opc/68682/4 "2023-01-19T18:03:35Z")

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What are you trying to do?  
Which OPC server do you refer to? Simatic NET OPC Server?  
Or PLCs onboard OPC server?

You can't "download" HW config to the OPC server... OPC server is not PLC...