Lte Telegrams Via Couplers And Ip Routers - Siemens Synco 700 Series Basic Documentation

Block all
Recommendation
Notes
Zones
Building Technologies
HVAC Products
All LTE telegrams with zone addresses 1...31 are communicated only within the
line concerned.
Z'addr.
1...31
8.2.4

LTE telegrams via couplers and IP routers

When using Siemens area/line couplers and IP routers in conjunction with
Synco devices, it is recommended that no more than 15 devices be
configured with the same zone (e.g. heat distribution zone) and the same
zone address (see the addresses highlighted in green in section 8.2.2).
The reason for this recommendation is that the area/line couplers and IP routers
have limited buffers.
The aim is to prevent the transmission of too many LTE telegrams (e.g. heat
demand signals from more than 15 devices) in the same cycle.
If it is possible in a given plant to ensure that only a small number of LTE telegrams
is transmitted in the same cycle or that the telegrams are short, then it is
acceptable to configure more than 15 devices with the same zone and zone
address. However, observing the recommendation ensures reliable data
communication at all times.
The "Block all" filter setting prevents all data communication via the area/line
couplers and IP routers. In this case, the recommendation can be ignored.
The above recommendation is not relevant for all zones, only for those listed below
(see also the table in section 8.2.2).
• Geographical zones
• Heat distribution zones
• Refrigeration distribution zones
• DHW zone
• Air distribution zone
• Boiler sequencing zone
Basic documentation: Communication via the KNX bus
Large plants
Block all
Z'addr.
1...31
Z'addr.
1...31
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CE1P3127en
30.08.2007