# IEC61850 data change time 10 second over! **URL:** \ **Category:** Ignition\ **Created:** [July 15, 2024, 7:46am UTC](https://forum.inductiveautomation.com/t/iec61850-data-change-time-10-second-over/93215 "2024-07-15T07:46:29Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![KIM\_JINGEUN](https://avatars.discourse-cdn.com/v4/letter/k/e19adc/32.png) [@KIM\_JINGEUN](https://forum.inductiveautomation.com/u/KIM_JINGEUN)\ **Post date:** [July 15, 2024, 7:46am UTC](https://forum.inductiveautomation.com/t/iec61850-data-change-time-10-second-over/93215/1 "2024-07-15T07:46:29Z")
We are communicating with the device through the iec61850 module. When changing data on the device, it takes more than 10 seconds for the value to change in the "ignition". I would like to change the settings so that I can read in real time. What should I do? ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/c/2/c246e294f350853b4ada8c2e6a984e2943091330.png) ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/8/f/8f846c689e36ace30fce5142eb8d385c65df6279.png) ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/c/3c938e5d598cc01dbcbd55d203ead3a184d8a183.png) This is the currently set screen. ---
**Author:** ![victordcq](https://avatars.discourse-cdn.com/v4/letter/v/f6c823/32.png) [@victordcq](https://forum.inductiveautomation.com/u/victordcq)\ **Post date:** [July 15, 2024, 9:14am UTC](https://forum.inductiveautomation.com/t/iec61850-data-change-time-10-second-over/93215/2 "2024-07-15T09:14:25Z")
i personally arent really involved with tags that much but, from my understanding there is no "real time" with plc's (usually because the plcs dont over this themselves (?)) You can set how the tag is read with execution mode property, you can lower the poll rate to be a bit faster, but dont go to crazy with the speeds... If you have to read a lot of different things from the same plc or have many such tags you probably should try to look to collect as much data in one call as possible. ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/9/9/99f57efa39b74e0d6c2db3dc3cd71afe4aeaa7a5.png) > **[Tag Properties | Ignition User Manual](https://docs.inductiveautomation.com/docs/8.1/platform/tags/tag-properties#value-properties)** > > Tags are points of data and may have static values or dynamic values that come from an OPC address, an Expression, or a SQL query. The values can be used on screens and in Transaction Groups. Additionally, tags offer a core set of features above and... ---
**Author:** ![justinedwards.jle](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/justinedwards.jle/32/37854_2.png) [@justinedwards.jle](https://forum.inductiveautomation.com/u/justinedwards.jle)\ **Post date:** [July 15, 2024, 1:03pm UTC](https://forum.inductiveautomation.com/t/iec61850-data-change-time-10-second-over/93215/3 "2024-07-15T13:03:09Z")
> [@victordcq](#): > > you can lower the poll rate to be a bit faster This seems correct to me, so the only thing I have to offer is clarification on this point: > [@victordcq](#): > > no "real time" with plc PLCs have a scan time that is usually a fraction of a second. Perhaps, technically, it's not real time, but I would say it's fairly close. ---
**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:** [July 15, 2024, 1:08pm UTC](https://forum.inductiveautomation.com/t/iec61850-data-change-time-10-second-over/93215/4 "2024-07-15T13:08:38Z")
61850 data points are not meant to be polled, they are supposed to come in via the reporting mechanism. Check the settings on that report block and make sure e.g. the buffer time isn't set to something like 10 seconds. The outstation is responsible for sending these reports to us, we don't request them.