# OPC Connection to Siemens **URL:** \ **Category:** Ignition\ **Created:** [November 26, 2024, 3:21pm UTC](https://forum.inductiveautomation.com/t/opc-connection-to-siemens/99125 "2024-11-26T15:21:42Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![vrautomation](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/vrautomation/32/11155_2.png) [@vrautomation](https://forum.inductiveautomation.com/u/vrautomation)\ **Post date:** [November 26, 2024, 3:21pm UTC](https://forum.inductiveautomation.com/t/opc-connection-to-siemens/99125/1 "2024-11-26T15:21:42Z")
Hello everyone, I want to read data from a Siemens S7-1512 PLC using an OPC-UA connection directly to the PLC. The connection in Ignition is working: ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/d/4dbbd7ea4d5be8cbb944fa2ec780dbc43b5227d0.png) I can browse inside the server. I can read data like the serial number of the CPU. But I cannot find a way to browse inside the tags... ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/3/6362fcba43eba6a52e74ea9e683bca31331392f5.png) Can anyone help? Thanks. ---
**Author:** ![Arnaud\_Declerck](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/arnaud_declerck/32/44872_2.png) [@Arnaud\_Declerck](https://forum.inductiveautomation.com/u/Arnaud_Declerck)\ **Post date:** [November 26, 2024, 3:35pm UTC](https://forum.inductiveautomation.com/t/opc-connection-to-siemens/99125/2 "2024-11-26T15:35:26Z")
Hi @vrautomation, You should have something like that ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/7/4/74b2d16d88c2bbc1b3164a171dac07ae0becf636.png) Verify that those two options are enabled in your hardware configuration ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/8/b8de6eceba971eaa599bff4916c6506fe3b65f14.png) Regards ---
**Author:** ![vrautomation](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/vrautomation/32/11155_2.png) [@vrautomation](https://forum.inductiveautomation.com/u/vrautomation)\ **Post date:** [November 27, 2024, 6:49pm UTC](https://forum.inductiveautomation.com/t/opc-connection-to-siemens/99125/3 "2024-11-27T18:49:11Z")
We enabled the options you shown but can't find any relevant data in the server. Can you tell me where to find the data? I feel like I expant everything... ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/c/3cbc91bcd98708b288bfef6f60b00fa62f3b74db.png) ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [November 27, 2024, 6:50pm UTC](https://forum.inductiveautomation.com/t/opc-connection-to-siemens/99125/4 "2024-11-27T18:50:26Z")
Make sure you compile and download software/hardware changes. I haven't had much luck making OPC UA configuration changes online. ---
**Author:** ![vrautomation](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/vrautomation/32/11155_2.png) [@vrautomation](https://forum.inductiveautomation.com/u/vrautomation)\ **Post date:** [November 27, 2024, 6:55pm UTC](https://forum.inductiveautomation.com/t/opc-connection-to-siemens/99125/5 "2024-11-27T18:55:36Z")
We did it. No luck... ---
**Author:** ![Arnaud\_Declerck](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/arnaud_declerck/32/44872_2.png) [@Arnaud\_Declerck](https://forum.inductiveautomation.com/u/Arnaud_Declerck)\ **Post date:** [November 27, 2024, 7:30pm UTC](https://forum.inductiveautomation.com/t/opc-connection-to-siemens/99125/6 "2024-11-27T19:30:11Z")
You should see it under here ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/7/e/7ec9b62931b1933931359b3ec37fab17aa355ac7.png) Make sure of the following also: - Under your DB properties ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/6/16ca8d23108b0f34b88e5dea5e8480e45bca1ebe.png) - Inside your DB make sure the accessible and writable from HMI/OPC UA is enabled ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/7/e7a7871c7683728d5e16857a5397a21e4f87d004.png) Regards ---
**Author:** ![vrautomation](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/vrautomation/32/11155_2.png) [@vrautomation](https://forum.inductiveautomation.com/u/vrautomation)\ **Post date:** [November 27, 2024, 7:35pm UTC](https://forum.inductiveautomation.com/t/opc-connection-to-siemens/99125/7 "2024-11-27T19:35:17Z")
Ok we will try this tomorrow. Thanks a lot 🙂