Siemens SENTRON VL Series

Introduction and overview
1.2 Bus systems
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
17
5
1
19
20
17
2
18
12 13 14 15 16 6
7
1
3
8
9
10
11
4
PROFIBUS
Ethernet
CubicleBUS
① 3VL molded-case circuit breaker ⑪ Metering function PLUS
② Electronic trip unit LCD ETU ⑫ ZSI module
③ Electronic trip unit ETU ⑬ Digital output module with relay contacts
④ COM20 PROFIBUS module
1
from Release 2 including ZSI ⑭ Digital output module with relay contacts,
configurable
⑤ COM20 PROFIBUS module
1
including ZSI ⑮ Analog output module
⑥ BDA PLUS with Ethernet interface ⑯ Digital input module
⑦ 3WL air circuit breaker ⑰ Software tool, e.g.
Switch ES Power on PC
⑧ COM15 PROFIBUS module
2
⑱ PLC, e.g. SIMATIC S7
⑨ Breaker Status Sensor (BSS) ⑲ HMI, e.g. PCS7 Faceplates
⑩ Electronic trip unit ETU ⑳ PAC power monitoring devices
1
The COM21 module is required for a Modbus RTU connection.
2
The COM16 module is required for a Modbus RTU connection.
Figure 1-2 System architecture of the SENTRON circuit breakers