Siemens 7XV5673 Device Manual page 136

8 Communication
8.1 Communication Features
Reception of the Network Configuration from the DHCP Server
The network configuration can also be obtained from an external server. Using the DHCP protocol, the device
is integrated into an already existing network.
If the IP address 0.0.0.0 is configured (see chapter 6.3.3.6), the device sends a query to the external DHCP
server requesting the network configuration immediately after booting. Having received the network configura-
tion, the device launches the Ethernet services.
If no DHCP server is available, you have to disconnect the device from the network and start it using the default
IP address (see chapter 4.7.2) and assign a permanent IP address.
8.1.1.3 Ethernet Interface with internal Ethernet Switch
SICAM I/O Unit is equipped with an Ethernet interface. The data are exchanged via the RJ45 Ethernet plug
connector located on the top side of the device.
Ethernet
connector
RJ45
Figure 8-2
Since the SICAM I/O Unit is provided with an internal Ethernet switch, 2 devices with Ethernet interface can be
connected (cascaded) via a Y cable.
The Ethernet interface is characterized by the following parameters:
• Transmission rate:
• Protocol:
• Connection:
• Connecting cable:
136
RJ45 Ethernet Plug Connector
10/100 Mbit/s
IEEE802.3
100BaseT (RJ45), pin assignment according to DIN EN 50173,
Automatic patch/crossover cable recognition
100 Ω to 150 Ω STP, CAT5 (shielded twisted-pair cable), max. 100 m if well
installed
SICAM I/O Unit, 7XV5673, Device Manual
E50417-H1040-C484-A3, Edition 05.2012