Modem Message Interval - Siemens Synco ZW775 V2.0 Commissioning Instructions

Modem message interval

Siemens Building Technologies
HVAC Products
5.3.3 Modem message interval
Do not confuse "Current repetition interval" with "Modem message interval". Data point
"Modem message interval" applies to all message receivers connected to a modem.
At data point "Modem message interval", set the time for modem connection that the
central communication unit must wait after a connection was aborted before it can
reestablish connection. This time ensures that the central communication unit can be
called by modem between 2 connections (e.g. from an external operator station).
The following process results at a modem message interval of 2 minutes, if several
message receivers are parameterized for the same messages and if the messages are
to be sent via modem interface:
2nd package
1st package
Sending
message
Message
pending
15 min
60 min
The message receiver that sends the pending message(s) is selected at random and
depends on internal processes at the central communication unit.
However, all 4 message receivers can send within 8 minutes. "Current repetition
interval" applies for unsent messages until the message receiver can send its message.
Commissioning instructions OZW775 V2.01
Further commissioning steps
3rd package 4th package
840 min
Message receiver 3
Message receiver 1
Message receiver 4
Message receiver 3
Modem message
interval 2 min
15 min
5th package
840 min
1st package
2nd package
CE1C5663en
22.06.2012
93/148