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?
This is the currently set screen.
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.
This seems correct to me, so the only thing I have to offer is clarification on this point:
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.
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.
