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Communication
2.6 Application Examples for Communication with Subdevices
2.6.2
Communication of the SICAM Q100 Devices with the SICAM I/O Units
(subdevices) via External Ethernet Switches and Modbus UDP
When using external Ethernet switches, you can connect the devices SICAM Q100 and SICAM I/O Unit
7XV5673 with each other. Furthermore, control system devices can be connected to the external Ethernet
switches. The following diagram shows a device wiring example and the possible transmission protocols.
SCADA
Modbus TCP/ IEC 61850
Ethernet
Switches
Modbus TCP/
IEC 61850,
HTTP , NTP,
Modbus UDP
SICAM Q100
Inputs/Outputs Q100
AC Inputs:
3x Voltage
4x Current
2 Binary outputs
2 Binary inputs
Figure 2-12
NOTE
During a firmware update of the SICAM Q100, the communication between SICAM Q100 and the SICAM sub-
devices is stopped.
96
NTP Server
NTP
further Ethernet devices
Modbus UDP
between
SICAM Q100 and
Subdevice
SICAM I/O-Unit
Inputs/Outputs I/O Unit
6 Binary inputs
6 Binary outputs
Connecting the SICAM Q100 with the SICAM I/O Unit and the Control System via External
Ethernet Switch
Diagnosis/
Configuration
HTTP
further Ethernet devices
Modbus UDP
Modbus TCP/
between
IEC 61850,
SICAM Q100 and
HTTP, NTP,
Subdevice
Modbus UDP
SICAM I/O-Unit
SICAM Q100
SICAM Q100, 7KG95xx, System Manual
E50417-C1040-C522-A8, Edition 09.2020
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