Status delay Modbus.

[Long]

It won't be much faster at higher bitrate. Modbus is not meant for fast communication due to polling.
As a work-around you can map an event script to the control object to update the status immediately.

Thanks admin!
I can write it directly in 6.1.2 as the on/off control address for state updates:
if event.getvalue()
  then
grp.write('6/1/1', true) --Status on/off
  else
grp.write('6/1/1', false) --Status on/off
end
Admin have any better ideas?