
6 Connection Principle and Applications
6.4 Application Examples SICAM MMU with SICAM I/O Unit 7XV5673
73
SICAM MMU 7KG9663, Device Manual
E50417-H1040-C514-A3, Edition 01.2016
6.4.3
Creating a Device Combination via an External Ethernet Switch and
Connection to the Control Center
You can use an external Ethernet switch to connect the SICAM MMU with the SICAM I/O Unit 7XV5673. In this
case, the internal Ethernet switch of the SICAM I/O Unit 7XV5673 is not used. Furthermore, you can connect
this device combination to the control center using the external Ethernet switch. The following figure illustrates
the cabling of the devices and the possible transmission protocols.
Fig. 6-15
Creating a Device Combination via an External Switch and Connection to the Control Center
SICAM MMU
SICAM I/O Unit
IEC 60870-5-104,
HTTP, NTP, Modbus UDP
IEC 60870-5-104
NTP
HTTP
Ethernet
Switch
IEC 60870-5-104
3~ V/I Input,
2 Binary Outputs
6 Binary Inputs,
6 Binary Outputs
Modbus UDP
between SICAM MMU
and SICAM I/O Unit
NTP Server
Diagnosis/
Configuration
Redundant
IEC 60870-5-104
Master
Primary
IEC 60870-5-104
Master
SICAM-MMU_7KG9663_US.book Page 73 Monday, December 7, 2015 12:22 PM