Siemens SENTRON VL Series

3WL air circuit breakers
3.1 Introduction and overview
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
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① PLC, e.g. SIMATIC S7 data acquisition and processing
② PC with Switch ES Power SENTRON 3WL/3VL parameterization and visualization tool via
PROFIBUS DP
③ Digital input module
④ Analog output module
⑤ Digital output module, configurable
⑥ Digital output module, relay, configurable
⑦ Digital output module
⑧ Digital output module, relay
⑨ ZSI module
⑩ Metering function PLUS
⑪ ETU
⑫ BSS
⑬ COM15
⑭ Output device, e.g. notebook with browser
⑮ BDA PLUS
⑯ Ethernet/intranet/Internet (only BDA PLUS)
Figure 3-2 System architecture of the SENTRON WL
3.1.2 Communications capability of electronic trip units (ETU)
The electronic trip units ETU45B and ETU76B are both capable of communication. The
CubicleBUS is brought out at the terminals X8:1 to X8:4 in the circuit breaker.