English (GB)
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16. Data communication
The CU 361 incorporates hardware that enables communication with external units, such as a computer, via an external GENIbus or
Ethernet connection.
Fig. 34
Data communication via external GENIbus and Ethernet connections
16.1 Ethernet
Ethernet is the most widely used standard for local networks
(LAN). The standardisation of this technology has created some
of the easiest and cheapest ways of creating communication
between electrical units, for instance between computers or
between computers and control units.
The web server of the CU 361 makes it possible to connect a
computer to the CU 361 via an Ethernet connection. The user
interface can thus be exported from the CU 361 to a computer so
that the CU 361 and consequently the RCME system can be
remotely monitored and controlled.
In order to use the web server, you must know the IP address of
the CU 361. All network units must have a unique IP address to
communicate with each other.
It is possible to change the factory-set IP address by
configuration or by activating a DHCP (Dynamic Host
Configuration Protocol), either directly in the CU 361 or via the
web server. See the example in fig. 35.
Fig. 35
Example of Ethernet setting
Dynamic assignment of an IP address for the CU 361 requires a
DHCP server in the network. The DHCP server assigns a number
of IP addresses to the electrical units and makes sure that two
units do not receive the same IP address.
Use a standard internet browser when connecting to the web
server of the CU 361.
If you want to use the factory-set IP address, no changes are
required in the display. Open the internet browser, and enter the
IP address of the CU 361.
In order to use dynamic assignment, the function must be
enabled. Click [ok] "Use DHCP". A tick shows that the function
has been enabled. Open the internet browser, and enter the
CU 361 "Host name" instead of the IP address (the host name is
stated at the top of display 4.5.5). The internet browser will now
try to establish connection to the CU 361.
This is the first display that appears when connecting to the
CU 361.
Fig. 36
Connecting to the CU 361
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41
45
1
1
CIM 270
CU 361
WWW
Ethernet
Note
We recommend that you protect the connection
to the CU 361 in consultation with the system
administrator according to your safety
requirements.
Di
spla
y_4
.5.5
Note
DHCP requires a host name.
The host name can only be changed by means of
a GSC file (configuration file) or via a web server.
See section Change of network setting, page 21.
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