# Gateway Tag Change Script Triggered with no Reason **URL:** \ **Category:** Ignition\ **Created:** [September 11, 2020, 4:46pm UTC](https://forum.inductiveautomation.com/t/gateway-tag-change-script-triggered-with-no-reason/38602 "2020-09-11T16:46:51Z")\ **Posts on this page:** 3\ **Page:** 2
**Author:** ![vasilevdim](https://avatars.discourse-cdn.com/v4/letter/v/7ba0ec/32.png) [@vasilevdim](https://forum.inductiveautomation.com/u/vasilevdim)\ **Post date:** [September 12, 2020, 6:40pm UTC](https://forum.inductiveautomation.com/t/gateway-tag-change-script-triggered-with-no-reason/38602/21 "2020-09-12T18:40:58Z")
Possibly. But the weird is that most of the time the values of the previous and the current values are correct. And the script works. ---
**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 12, 2020, 6:43pm UTC](https://forum.inductiveautomation.com/t/gateway-tag-change-script-triggered-with-no-reason/38602/22 "2020-09-12T18:43:29Z")
Naturally. The phenomenon is rare–occurs when Ignition’s subscription read of those registers falls on the same moment the count is updating in the PLC, and the low word rolls over in the middle of the 32-bit read. ---
**Author:** ![vasilevdim](https://avatars.discourse-cdn.com/v4/letter/v/7ba0ec/32.png) [@vasilevdim](https://forum.inductiveautomation.com/u/vasilevdim)\ **Post date:** [September 12, 2020, 6:46pm UTC](https://forum.inductiveautomation.com/t/gateway-tag-change-script-triggered-with-no-reason/38602/23 "2020-09-12T18:46:16Z")
Now already it makes more sense to me. Many thanks for your time and help, pturmel. [Previous page](https://forum.inductiveautomation.com/t/gateway-tag-change-script-triggered-with-no-reason/38602.md?page=1)