Siemens SINUMERIK 840D sl TCU 30.3 Equipment Manual

6.3 Network con󹪝guration
6.3.1 Permissible network topologies
Ethernet connection
A SINUMERIK 840 D sl can only be operated as a network within which the individual
components communicate with one another via Ethernet connections. This network must be set
up.
The individual components are factory-set so that the most frequently occurring standard
con󹪝gurations can be operated without changing the settings related to the network.
Division into system network and company network
On the SINUMERIK solution line, the components are generally split into a company network on
the one hand and a system network on the other.
The connection to the company network provides access to the network drives, for example.
On the system network, process data communication and image transmission runs from the
components with operator software to the display units of the respective TCU.
This separation is performed via the following speci󹪝ed use of the Ethernet interfaces on the
components:
• A TCU is connected exclusively to the system network.
• An NCU is always connected to the system network via X120.
• Ethernet interface Eth 2/X2 of the PCU/IPC is precon󹪝gured for connection to the system
network; while Ethernet interface Eth 1/X1 is used for connection to the company network.
• An NCU is connected to the company network via X130.
Meaning of the connections:
○ Eth 1/X1 as DHCP client
● Eth 2/X2 as DHCP server
■ Eth 2/X2 with 󹪝xed IP address
Green connection Uncrossed Ethernet cable
Gray connection Crossed Ethernet cable (crossover)
Networking
6.3Network con󹪝guration
TCU 30.3
52 Equipment Manual, 03/2023, A5E40874197B AD

Siemens SINUMERIK 840D sl TCU 30.3 Specifications

General

Brand	Siemens
Model	SINUMERIK 840D sl TCU 30.3
Category	Security Sensors
Language	English