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6.3.3.2
Configuration 3: PCU/IPC with TCU on NCU
In this configuration, a switch is also required for the system network. All components are
connected using straight Ethernet cables.
On X120, the NCU occupies the fixed IP address 192.168.214.1 in its capacity as a DHCP
server (not used in this configuration). For this configuration on Eth 2, the PCU/IPC is
assigned a static IP address in the range 192.168.214.241 – 192.168.214.249 with a subnet
mask 255.255.255.0 . The DHCP server of the NCU supplies the TCU with an IP address and
serves as a boot server for the TCU.
The observations made for configuration 2 apply here with regard to the connection to the
company network. The connection to a switch on the company network is made via a patch
cable for Ethernet.
To connect one TCU to both HMI systems you must create an additional connection to the
NCU for the TCU.
TCU 30.3
Equipment Manual, 03/2023, A5E40874197B AD
Networking
6.3 Network configuration
55
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