Siemens SINUMERIK ONE NCU 1740 Equipment Manual page 61

NCU communication services and port numbers
Device Interface Port
NCU17x0 X120
1)
X120
1)
X120
1)
X120
1)
X120 1)
X120 1)
X120
1)
X120
1)
X120
1)
X130
2)
X130 2)
X130 2)
X130
2)
Internal HMI network
1)
Company network
2)
Note: Note that the firewall X130 is closed as delivered.
NCU 1740
Equipment Manual, 09/2022, A5E51087503B AC
Protocol Function
22 TCP/UDP SSH NCU Linux
102 TCP S7 communication
3843 TCP Diagnostics server
5848 TCP SIUpdateService
5849 TCP tcu_hwsd
5850 TCP tcu_hwsd
5900 TCP/UDP VNC
5904 TCP VNC
5905 TCP VNC
22 TCP/UDP SSH NCU Linux
102 TCP S7 communication
4840 TCP/UDP OPC UA Protocol
5900 TCP/UDP VNC
8.2 Communication services and used port numbers
Description
Secure Shell or SSH refers to both a network protocol
and the associated programs, which can be used to
safely establish an encrypted network connection
with a remote device.
ISO on TCP (according to RFC 1006), SIMATIC
S7-1500 PLC communication
Proprietary protocol, diagnostic data
Proprietary protocol, SINUMERIK Operate update
service
Proprietary protocol, registration of USB devices of
TCUs on NCUs
Proprietary protocol, TCU hardware service, man‐
agement of various TCU functions (resolution
switchover, focus, light/dark switching, etc.)
Virtual Network Computing (VNC) is a software that
displays the screen content of a remote computer
(server) on a local computer (client), and in return
sends keyboard and mouse movements of the local
computer to the remote computer.
VNC according to RFC 6143, NCU service shell
VNC according to RFC 6143, display of local NCU log
files
Secure Shell or SSH refers to both a network protocol
and the associated programs, which can be used to
safely establish an encrypted network connection
with a remote device.
ISO on TCP (according to RFC 1006), SIMATIC
S7-1500 PLC communication
OPC UA (Unified Architecture) is a standardized, in‐
dustrial communication protocol for access to con‐
trol data, e.g. by higher-level control systems.
Virtual Network Computing (VNC) is a software that
displays the screen content of a remote computer
(server) on a local computer (client), and in return
sends keyboard and mouse movements of the local
computer to the remote computer.
Connecting
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