QuercusVL Programming Manual
This process will keep on until configured retries are exceeded, the central system answers
with an ACK, or message version reach the minimum able for the unit to manage (usually
zero). The following messages sent by the unit will contain the message version already set.
This process will be repeated at every unit start up.
Example:
On the other hand, when the unit receives a request message from the central system, always
tries to answer with the same message version, or NAK type 6 (Incorrect version) if it is not
able to understand the message version.
Example:
Quercus Technologies
128
1st Event (v2)
Unit
Central system
NAK(6)
1st Event (v1)
NAK(6)
2nd Event (v0)
ACK
End retries