Siemens SENTRON 3WA System Manual page 14

System description
2.2 The CubicleBUS² bus system
You can find a detailed description of the components including the technical specifications
in the 3WA Equipment Manual; see Chapter Reference documents (Page 5).
Data exchange between CubicleBUS
Data is exchanged internally via CubicleBUS
fieldbus interfaces.
The CubicleBUS
CubicleBUS
lines are not permitted.
The first CubicleBUS
the circuit breaker.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
12
nodes
2
is a serial bus and is looped through from one module to the next. The
2
must be terminated at the final module with a 120 Ω terminating resistor. Spur
2
module is connected to secondary disconnect terminals X8-1 to X8-4 of
2
CubicleBUS modules on the circuit breaker
2
External CubicleBUS modules
2
DIN rail
120 Ω terminating resistor of the CubicleBUS
CubicleBUS
2
3WA air circuit breaker
Guide frame of the 3WA air circuit breaker (optional)
and output at the local interface, I/O modules, or
2
2
3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02