Siemens SINUMERIK 840DE SL - Page 82

Con󹪝guration 5: PCU with TCU on NCU
Description
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In this con󹪝guration, a switch is also required for the system network. All components are
connected using straight Ethernet cables.
In terms of address allocation and the settings that need to be made, this con󹪝guration
is identical to that of con󹪝guration 4. However, in this case, the DHCP server of the NCU
actually supplies the TCU with an IP address and serves as a boot server for the TCU.
The observations made for con󹪝guration 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
straight Ethernet cable.
To connect one TCU to both HMI systems you must create an additional connection to the
NCU for the TCU, as described in the following chapter:
General information and networking
4.3Networking
Handheld Terminal HT 8
82 Equipment Manual, 02/2024, A5E52918633B AA