# Ignition Perspective Modbus Tag errors toggling controls

**URL:** <https://forum.inductiveautomation.com/t/ignition-perspective-modbus-tag-errors-toggling-controls/29628>\
**Category:** Ignition\
**Created:** [November 4, 2019, 6:27am UTC](https://forum.inductiveautomation.com/t/ignition-perspective-modbus-tag-errors-toggling-controls/29628 "2019-11-04T06:27:35Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sac](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/sac/32/11370_2.png) [@sac](https://forum.inductiveautomation.com/u/sac)\
**Post date:** [November 4, 2019, 6:27am UTC](https://forum.inductiveautomation.com/t/ignition-perspective-modbus-tag-errors-toggling-controls/29628/1 "2019-11-04T06:27:35Z")

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I have connected a device to Ignition 8 using Modbus RTU over TCP. Whenever there is an error in a tag due to communication failure, the control to which I have assigned it to is toggling.  
For example, if I have connected an ON/ OFF tag with a toggle button, it keeps toggling between On and Off whenever there is a communication failure!  
How can I avoid this?  
Is there a way to avoid ignition from automatically toggling the controls when there is an error in the bound tag?