# Ignition HMI indicators flash to 0 **URL:** \ **Category:** Ignition\ **Created:** [April 15, 2024, 2:35pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819 "2024-04-15T14:35:31Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Le\_Thien\_Nam\_Nguyen1](https://avatars.discourse-cdn.com/v4/letter/l/9f8e36/32.png) [@Le\_Thien\_Nam\_Nguyen1](https://forum.inductiveautomation.com/u/Le_Thien_Nam_Nguyen1)\ **Post date:** [April 15, 2024, 2:35pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819/1 "2024-04-15T14:35:31Z")
I used TIA V.18 from Siemens With Simatic S7-1500 as PLC. For HMI , I used Ignition Platform V 8.1.18. I used OPC-UA for communication between S7-1500 and Ignition. The problem I have is the numbers flash to zeros, even though the values from PLC did not change. I used trap to test this. ---
**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:** [April 15, 2024, 2:43pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819/2 "2024-04-15T14:43:14Z")
Please add the `vision` or `perspective` tag to your question. The answer may depend on which you are using. > The problem I have is the numbers flash to zeros, even though the values from PLC did not change. I used trap to test this. What sort of trap? Did you monitor these on Designer's Tag Browser? Is there any error overlay on the Ignition Vision or Perspective HMI? ---
**Author:** ![lrose](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lrose/32/62724_2.png) [@lrose](https://forum.inductiveautomation.com/u/lrose)\ **Post date:** [April 15, 2024, 3:16pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819/3 "2024-04-15T15:16:37Z")
> [@Le\_Thien\_Nam\_Nguyen1](#): > > I have is the numbers flash to zeros When do they flash to zero? In some circumstances this is expected behavior. ---
**Author:** ![Le\_Thien\_Nam\_Nguyen1](https://avatars.discourse-cdn.com/v4/letter/l/9f8e36/32.png) [@Le\_Thien\_Nam\_Nguyen1](https://forum.inductiveautomation.com/u/Le_Thien_Nam_Nguyen1)\ **Post date:** [April 15, 2024, 3:27pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819/4 "2024-04-15T15:27:50Z")
It is random and I can not predict. Sometimes only 1 flashes and sometimes all of them flash. ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/e/1e94a2e703b36f829f9fc5afb5b967a697097cb9.png) ---
**Author:** ![lrose](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lrose/32/62724_2.png) [@lrose](https://forum.inductiveautomation.com/u/lrose)\ **Post date:** [April 15, 2024, 3:29pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819/5 "2024-04-15T15:29:42Z")
Does this happen when you first open the window, or while the window has already been open? ---
**Author:** ![Le\_Thien\_Nam\_Nguyen1](https://avatars.discourse-cdn.com/v4/letter/l/9f8e36/32.png) [@Le\_Thien\_Nam\_Nguyen1](https://forum.inductiveautomation.com/u/Le_Thien_Nam_Nguyen1)\ **Post date:** [April 15, 2024, 3:33pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819/6 "2024-04-15T15:33:04Z")
it happens when the window has already been open ---
**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\ **Post date:** [April 15, 2024, 3:37pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819/7 "2024-04-15T15:37:16Z")
You should share how your tags are configured. ---
**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:** [April 15, 2024, 3:42pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819/8 "2024-04-15T15:42:07Z")
> [@Transistor](#): > > Please add the `vision` or `perspective` tag to your question. We are still waiting for this. It looks like Vision. ---
**Author:** ![Le\_Thien\_Nam\_Nguyen1](https://avatars.discourse-cdn.com/v4/letter/l/9f8e36/32.png) [@Le\_Thien\_Nam\_Nguyen1](https://forum.inductiveautomation.com/u/Le_Thien_Nam_Nguyen1)\ **Post date:** [April 15, 2024, 3:46pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819/9 "2024-04-15T15:46:18Z")
Please let me know how can I show that ---
**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:** [April 15, 2024, 3:48pm UTC](https://forum.inductiveautomation.com/t/ignition-hmi-indicators-flash-to-0/88819/10 "2024-04-15T15:48:25Z")
Click the pencil icon beside your question title. There are dropdowns for the tags.