# S7 1500 Tags Writing Issue **URL:** \ **Category:** Ignition 8.3 Early Access\ **Tags:** perspective, ignition83\ **Created:** [September 5, 2025, 5:19pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416 "2025-09-05T17:19:20Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![ahmedsaeeed907](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@ahmedsaeeed907](https://forum.inductiveautomation.com/u/ahmedsaeeed907)\ **Post date:** [September 5, 2025, 5:19pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/1 "2025-09-05T17:19:20Z")
i connected the s7 1500 with ignition via s7 driver, and it’s successfully connected, So once o browsed for the tags and i am trying to write back on these tags nothing change at all. i tried to use toggle switch once i click it, it get back to its initial status. note: This is only happens with the boolean type ![Screenshot 2025-09-05 201737](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/7/f7abc00e769d615a238b09c66ba157e5ec1a4f0d.jpeg) ---
**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Post date:** [September 5, 2025, 5:24pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/2 "2025-09-05T17:24:42Z")
Please show your `start` and `stop` tag configuration. (One will do.) ---
**Author:** ![ahmedsaeeed907](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@ahmedsaeeed907](https://forum.inductiveautomation.com/u/ahmedsaeeed907)\ **Post date:** [September 5, 2025, 5:33pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/3 "2025-09-05T17:33:03Z")
![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/2/22bfbae25f1d0e04fa560f8a8e07ffa4d2134940.png)here it is ---
**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:** [September 5, 2025, 5:35pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/4 "2025-09-05T17:35:38Z")
You've cut off critical info, like the full OPC Item Path. ---
**Author:** ![ahmedsaeeed907](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@ahmedsaeeed907](https://forum.inductiveautomation.com/u/ahmedsaeeed907)\ **Post date:** [September 5, 2025, 5:38pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/5 "2025-09-05T17:38:56Z")
![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/8/b/8b7106bb7a8d33534ac0b0950d8d88f2c3c8480b.png)i only browsed the plc to get the tags without cutting anything. i can read and write from any other data types except for the boolean ---
**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:** [September 5, 2025, 5:41pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/6 "2025-09-05T17:41:31Z")
That's a symbolic OPC Item Path. Is this the new symbolic driver in v8.3? If so, this should be discussed in the early access topic. ---
**Author:** ![ahmedsaeeed907](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@ahmedsaeeed907](https://forum.inductiveautomation.com/u/ahmedsaeeed907)\ **Post date:** [September 5, 2025, 5:43pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/7 "2025-09-05T17:43:29Z")
> [@ahmedsaeeed907](#): > > i connected the s7 1500 with ignition via s7 driver, and it’s successfully connected, So once o browsed for the tags and i am trying to write back on these tags nothing change at all. i tried to use toggle switch once i click it, it get back to its initial status. > > note: This is only happens with the boolean type that’s right this is the ignition 8.3, in 8.1 i was able to write though, but here in the new version doesn’t work properly ---
**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:** [September 5, 2025, 5:45pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/8 "2025-09-05T17:45:08Z")
I moved the discussion to the right category so the right eyes at IA will see this. ~~Sure looks like a bug.~~ ---
**Author:** ![Cody\_Morgan](https://avatars.discourse-cdn.com/v4/letter/c/db5fbb/32.png) [@Cody\_Morgan](https://forum.inductiveautomation.com/u/Cody_Morgan)\ **Post date:** [September 5, 2025, 5:49pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/9 "2025-09-05T17:49:42Z")
Set some of the Siemens loggers to debug level, and try to write again. Then check the logs and share if there is anything relevant there. We have boolean tags that we test against, so we'll have to figure out what is different with your tags compared to ours. EDIT: Here's an example, leave DiagnoticsAddressSpace set to info, it will be unnecessarily noisy: ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/7/d/7d32bcd84c6c2dfd53ac5540917542bb0af20561.png) ---
**Author:** ![ahmedsaeeed907](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@ahmedsaeeed907](https://forum.inductiveautomation.com/u/ahmedsaeeed907)\ **Post date:** [September 5, 2025, 7:11pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/10 "2025-09-05T19:11:34Z")
![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/a/2ac138fce32d7ac3ee38c30887455b54163de80c.png)that what i see in the loggers btw, i tried to force the inputs in tia portal and i can see the designer read it properly but when i try to write from designer, it doesn’t work ---
**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:** [September 5, 2025, 7:22pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/11 "2025-09-05T19:22:54Z")
I’d expect inputs are read only to external clients and the driver should respond with a bad status. ---
**Author:** ![ahmedsaeeed907](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@ahmedsaeeed907](https://forum.inductiveautomation.com/u/ahmedsaeeed907)\ **Post date:** [September 5, 2025, 7:31pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/12 "2025-09-05T19:31:00Z")
kindly can you clarify this more becuase i couldn’t get how can i find these configs that will change that ---
**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:** [September 5, 2025, 7:37pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/13 "2025-09-05T19:37:20Z")
Most platforms do not allow "setting" the signals from physical inputs. You have to **force** them, which is usually available only in a programming tool like TIA Portal. ---
**Author:** ![ahmedsaeeed907](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@ahmedsaeeed907](https://forum.inductiveautomation.com/u/ahmedsaeeed907)\ **Post date:** [September 5, 2025, 7:39pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/14 "2025-09-05T19:39:55Z")
In Tia Portal i make the full access for the external Clients and i even checked PUT/GET When i access the DataBlock whatever boolean or integer value, it works properly ---
**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:** [September 5, 2025, 7:42pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/15 "2025-09-05T19:42:57Z")
If these aren't physical inputs, but are ordinary bits in a datablock's structure, then my comment wouldn't apply. ~~Seems like bug.~~ ---
**Author:** ![ahmedsaeeed907](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@ahmedsaeeed907](https://forum.inductiveautomation.com/u/ahmedsaeeed907)\ **Post date:** [September 5, 2025, 7:45pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/16 "2025-09-05T19:45:14Z")
The Issue here is about the Physical Inputs Of The PLC itself, not the datablock ---
**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:** [September 5, 2025, 7:45pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/17 "2025-09-05T19:45:37Z")
You can't write to physical inputs. ---
**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:** [September 5, 2025, 7:45pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/18 "2025-09-05T19:45:43Z")
Then you should not expect to be able to write to those. ---
**Author:** ![ahmedsaeeed907](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@ahmedsaeeed907](https://forum.inductiveautomation.com/u/ahmedsaeeed907)\ **Post date:** [September 5, 2025, 7:48pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/19 "2025-09-05T19:48:56Z")
Yeah omg that’s right, I think i lost my mind though while i am trying to change the physical Inputs really thankful for your time ---
**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:** [September 5, 2025, 7:55pm UTC](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416/20 "2025-09-05T19:55:50Z")
> [@Kevin.Herron](#): > > the driver should respond with a bad status. It wouldn't surprise me if the driver **is** writing to these, but the value is being immediately overwritten with the physical signal. Which wouldn't yield an error. In older platforms, I've seen input space that is writable when not mapped to hardware. I'm pretty sure Logix lets you write physical inputs when the physical connection is inhibited. So it may not even be wrong. 🤷‍♂️ [Next page](https://forum.inductiveautomation.com/t/s7-1500-tags-writing-issue/110416.md?page=2)