# DB reading from SIEMENS 1200-1500

**URL:** <https://forum.inductiveautomation.com/t/db-reading-from-siemens-1200-1500/113981>\
**Category:** Ignition\
**Created:** [February 16, 2026, 3:13am UTC](https://forum.inductiveautomation.com/t/db-reading-from-siemens-1200-1500/113981 "2026-02-16T03:13:19Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mehdi.sajjadi1](https://avatars.discourse-cdn.com/v4/letter/m/a4c791/32.png) [@mehdi.sajjadi1](https://forum.inductiveautomation.com/u/mehdi.sajjadi1)\
**Post date:** [February 16, 2026, 3:13am UTC](https://forum.inductiveautomation.com/t/db-reading-from-siemens-1200-1500/113981/1 "2026-02-16T03:13:19Z")

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Yesterday I asked about addressing TAGs when reading from TIA Portal, and with the help of others I was able to read and write them without any issues.  
Now I’m trying to read variables from a DB in Ignition, but I’m getting the following error:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/7/f7904da8409d6e549b0f92e21450f74f720ff86f.png)

My settings on TIA portal side are (Based on what I found from internet and Inductive Help):

DB:

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/8/b805e2c9b1e16bc66562a1b5706196dedd1c8378.png)

DB Settings:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/4/5/45e4d4cbc159a3c1eab9c481b1818efff5c73f15.png)

Assigning the OUTPUT to DB’s variable:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/7/a/7aeb95d6677f1552dd82c42220feafc0ddef274b.png)

Ignition side settings:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/8/1860b89df94a144d3ae38ad01fd2f3ab4444e4f0.png)

Am I missing or have done anything wrong?

Thanks in advance

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**Author:** ![Jasmine\_Quick](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jasmine_quick/32/80380_2.png) [@Jasmine\_Quick](https://forum.inductiveautomation.com/u/Jasmine_Quick)\
**Post date:** [February 16, 2026, 4:54am UTC](https://forum.inductiveautomation.com/t/db-reading-from-siemens-1200-1500/113981/2 "2026-02-16T04:54:01Z")

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Your OPC Item path could be QX0.0  
Note the comma between the DB and the offset, and the different way of determining the data type.

(Edit: re-read the question, edited suggested item path to target output 0)

> **[Siemens | Ignition User Manual](https://www.docs.inductiveautomation.com/docs/8.1/ignition-modules/opc-ua/opc-ua-drivers/siemens)**
>
> The Siemens drivers in Ignition support basic connections to S7 devices. Ignition connects to these PLCs via TCP/IP using the S7 protocol. Similar to Modbus and some Allen Bradley connections, the Siemens S7 devices do not support tag browsing. You...

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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:** [February 16, 2026, 12:57pm UTC](https://forum.inductiveautomation.com/t/db-reading-from-siemens-1200-1500/113981/3 "2026-02-16T12:57:31Z")

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Also note that the two checkboxes you highlight in the hardware config do not apply to the S7 protocol.

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**Author:** ![BRYAN\_MOBLEY](https://avatars.discourse-cdn.com/v4/letter/b/db5fbb/32.png) [@BRYAN\_MOBLEY](https://forum.inductiveautomation.com/u/BRYAN_MOBLEY)\
**Post date:** [February 16, 2026, 3:45pm UTC](https://forum.inductiveautomation.com/t/db-reading-from-siemens-1200-1500/113981/4 "2026-02-16T15:45:25Z")

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Make sure Full Access (no protection) is used and that “Permit access with PUT/GET” is checked on the PLC side.

For your path it should be “[SIEMENS-1500]DB1,X0.0”. If you wanted just the output then it would be “[SIEMENS-1500]QX0.0”.

I am responding to this with the assumption you are using 8.1.

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**Author:** ![umedranoespinosa](https://avatars.discourse-cdn.com/v4/letter/u/c37758/32.png) [@umedranoespinosa](https://forum.inductiveautomation.com/u/umedranoespinosa)\
**Post date:** [September 2, 2026, 3:47am UTC](https://forum.inductiveautomation.com/t/db-reading-from-siemens-1200-1500/113981/5 "2026-09-02T03:47:24Z")

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Maybe you have solved, but it for another partner have this trouble this is how I solved,[OPC\_Item]DB1,X0.0

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/7/1/7178d9a3f42a4bf8dfe11e3dfbe7f56e69dbcb61.png)