Design pattern to modify an epoch timestamp on modbus tcp
I've a modbus slave talking to mango 2.8.8 , I want to show on the web interface an epoch coming from the slave, I've done this using the datapoint rendering
but this is not a clean solution because:
- I can't show the right time including locale without showing the locale itself
- to modify the value on the slave I've to send to it an epoch and not a formatted date
What is the cleanest way to obtain this behaviour (modify an epoch on a modbus slave)?
Is there some example for this?
Using a Meta Data Source I think could be possible to format the date as I need but how I can then map to an epoch as required when the user for example change the hour?