Siemens 3wl - Page 25

23
Siemens · 10/2014
3WL Air Circuit Breakers
3WL air circuit breakers/non-automatic air circuit breakers up to 6300 A (AC), IEC
General data
Communication with MODBUS RTU
The requirements for power distribution in terms of communica-
tion capability, data transparency, flexibility and integration are
constantly increasing. An integrated and modular communica-
tion architecture was designed for the 3WL circuit breaker to
ensure that it can satisfy these requirements.
The core component of this architecture is the CubicleBUS,
which links together all of the intelligent components within the
3WL circuit breaker and enables the easy and safe connection
of other additional external components to the circuit breaker.
The CubicleBUS is already incorporated and connected in all
complete circuit breakers with ETU45B and ETU76B trip units.
The high modularity of the system allows retrofitting of communi-
cation functions (e.g. metering function) at any time. Similarly,
the upgrade of a non-communication-capable 3WL circuit
breaker (e.g. changeover from ETU25B to ETU45B with
CubicleBUS) can be carried out easily on site in the plant.
All modules connected to the CubicleBUS can directly access
the existing source data of the circuit breaker, which guarantees
the quickest possible access to information and response to
events.
Furthermore, additional external modules (including digital
inputs and outputs, analog outputs) can be connected to the
CubicleBUS to provide cost-effective solutions for the automa-
tion of additional devices in the switchboard.
1 1 1 2 4
3
5
9
876 10
11
3VA Molded Case Circuit Breakers
3WL air circuit breaker
COM16 MODBUS module
3VL molded case circuit breaker
COM21 MODBUS module
COM800 breaker data server
1
2
3
4
5
6
COM100 breaker data server
7KM PAC4200 measuring device
7KM PAC3100 measuring device
7KM PAC3200 measuring device
powerconfig configuration software from V2.3
7
8
9
10
11
RS 485 with
MODBUS RTU
Ethernet MODBUS TCP
3VA-line
3VA-line
I201_19162
© Siemens AG 2015