HEIDENHAIN iTNC 530 HSCI - The Ethernet Interface of the Itnc; SMB Signing; X26, X116: Ethernet Interface RJ45-Port (100 Baset)

July 2013 10.2 The Ethernet Interface of the iTNC 1863
10.2 The Ethernet Interface of the iTNC
General
information
You can integrate the iTNC into your plant’s intranet or use a transposed cable
to connect directly with a PC. The data transfer rate is dependent on the
amount of traffic at the time on the net. For information on the pin layout: See
"X26, X116: Ethernet interface RJ45-port" on page 325.
The iTNC requires an NFS server (Network File System) or a Windows PC
(SMB = Server Message Block) as the remote station. It must operate
according to the TCP/IP protocol principle.
Before networking, the TNC must be properly configured. Please discuss the
required settings with your network supervisor.
SMB signing HEIDENHAIN does not support SMB signing, which is a further development
from Microsoft as part of the CIFS (Common Internet File System). It is a
method for authentication, and is intended to thwart a "Man in the middle"
attack. In such an attack, computer C intrudes into a connection between
computers A and B. It then forces computer A to send all packages intended
for B to C instead, where the packages are modified before being passed on
to B.
The CIFS is not included with the HEIDENHAIN SMB driver. HEIDENHAIN
supports SMB, in the version familiar from Windows 2000, but not SMB
signing.
X26, X116: Ethernet
interface RJ45-port
(100BaseT)
 Maximum cable length:
• Unshielded: 100 m
• Shielded: 400 m
 Network topology: Star configuration
This means a hub serves as a central node that establishes the connection to
the other participants.
OSI 7-layer model iTNC
7 Application layer NFS, SMB
6 Presentation layer
5 Communications layer
4 Transport layer TCP protocol
3 Network layer IP protocol
2 Data link layer Ethernet card
1 Physical layer
Danger
The Ethernet interfaces of the MC 6xxx comply with the requirements of
PELV ("low voltage electrical separation") according to EN 61800-5-1 and are
powered internally by 24 V NC. All devices connected to these Ethernet
interfaces must comply with the requirements of SELV or PELV according
to EN 61800-5-1.