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General information and networking
1.4 Networking
If the company network offers a low level of administration (in the worst case scenario the
network has only one DHCP server that assigns the addresses from a predefined address
range) the NCU receives an IP address that is initially unknown.
Configuration 4: NCU and PCU with direct OP
Description
The NCU and PCU are connected via a crossed Ethernet cable.
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 Eth 2 configuration, the PCU is assigned a fixed
IP address in the range 192.168.214.241 – 192.168.214.249 with a subnet mask
255.255.255.0 .
The observations made for configuration 3 also apply here in relation to the connection to the
company network. The connection to a switch on the company network is made via a non-
crossed Ethernet cable.
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Operator panel front: OP 010
Manual, 07/2018, A5E36371538B
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