# Error read/write Siemens Tag **URL:** \ **Category:** Ignition\ **Tags:** ignition81\ **Created:** [February 13, 2023, 11:11am UTC](https://forum.inductiveautomation.com/t/error-read-write-siemens-tag/69769 "2023-02-13T11:11:22Z")\ **Posts on this page:** 3\ **Page:** 2
**Author:** ![indenkleefj](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/indenkleefj/32/10961_2.png) [@indenkleefj](https://forum.inductiveautomation.com/u/indenkleefj)\ **Post date:** [September 14, 2023, 2:39pm UTC](https://forum.inductiveautomation.com/t/error-read-write-siemens-tag/69769/21 "2023-09-14T14:39:46Z")
Thank you for the help. If Ignition will be the only application writing the values (in the future). Is there a way to correct the values in the PLC without opening the actual PLC program? For example, if we first empty the string and then start writing them with Ignition. ---
**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 14, 2023, 2:50pm UTC](https://forum.inductiveautomation.com/t/error-read-write-siemens-tag/69769/22 "2023-09-14T14:50:09Z")
I’d expect writing new string values from Ignition to correct the issue as long as whatever other process that wrote incorrect values doesn’t do it again. ---
**Author:** ![indenkleefj](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/indenkleefj/32/10961_2.png) [@indenkleefj](https://forum.inductiveautomation.com/u/indenkleefj)\ **Post date:** [September 15, 2023, 2:33pm UTC](https://forum.inductiveautomation.com/t/error-read-write-siemens-tag/69769/23 "2023-09-15T14:33:48Z")
I can confirm that writing an empty string will resolve the problem. [Previous page](https://forum.inductiveautomation.com/t/error-read-write-siemens-tag/69769.md?page=1)