Siemens SENTRON VL Series System Manual page 17

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