Hi Majid,
No, opendnp3 does not implement the optional "hold time" configuration parameter in 1815-2012 section 4.6.2.2. It immediately sends
an unsolicited response if event data is loaded into the outstation that:
1) produces an event AND
2) matches the currently enabled unsolicited event classes (1/2/3)
You'd have to implement such behavior in the application (by buffering events outside the stack) if this is desired.
-Adam