Glossary term
Backbone
topologieBasics
Definition
Top level of the topology, identified as "area 0" in ETS. Connects the areas via Area Couplers. Can be TP1 (Backbone TP) or IP (Backbone IP, recommended in modern commercial projects).
Questions using this term
- In an installation predating 2018, a maximum of 64 sensors, actuators, line couplers and backbone couplers can be connected to a TP main line.2. TP Topology · Offizielle Musterprüfung 4
- In KNXnet/IP Routing, several IP Routers on the same VLAN share traffic via multicast 224.0.23.12, forming an IP backbone with no master-slave hierarchy between the routers.1. Couplers · IP Routing vs. Tunneling
- PROFINET supports several physical topologies: star (via switches), line (daisy-chain through ports integrated in the devices) and ring (with MRP for redundancy), and they may be combined within the same network.3. Topology & cabling · Unterstützte Topologien
- PROFIBUS profiles (PROFIsafe, PROFIdrive, PA Profile) are identical between PROFIBUS and PROFINET, which lets you migrate the network infrastructure without having to re-certify the safety, drive or process application functions.10. Migration to PROFINET · Wiederverwendung der Profile
- A typical chemical plant uses PROFIBUS DP as backbone (DCS level 2) plus PROFIBUS PA segments for the transmitters located in Ex ia / ib zones (lower process layers), an architecture which will remain dominant against PROFINET-APL for another 5-10 years in process industry.21. Use cases · Anwendungsfall Chemieanlage
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