Grundfos Control DDD Montage- Und Betriebsanleitung Seite 63

8.8.1 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 electric units, for instance between computers or
between computers and control units.
The webserver of CU 354 makes it possible to connect a
computer to CU 354 via an Ethernet connection. The user
interface can thus be exported from CU 354 to a computer so that
CU 354 and consequently the system can be monitored and
controlled externally.
We recommend that you protect the connection to
CU 354 according to your safety requirements in
consultation with the system administrator.
In order to use the webserver, you must know the IP address of
CU 354. All network units must have a unique IP address to
communicate with each other. The IP address of CU 354 from
factory is 192.168.0.102.
Alternatively to the factory-set IP address, it is possible to use a
dynamic assignment of IP address. This is possible by activating
a DHCP (Dynamic Host Configuration Protocol) in CU 354 or via
the webserver. See the example in fig. 126.
Fig. 126 Example of setting of Ethernet
Dynamic assignment of an IP address for CU 354 requires a
DHCP server in the network. The DHCP server assigns a number
of IP addresses to the electric units and makes sure that two units
do not receive the same IP address.
A standard internet browser is used for connection to the
webserver of CU 354.
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 CU 354.
If you want to use dynamic assignment, you must enable the
function by selecting "Use DHCP" and clicking [OK]. A check
mark shows that the function has been enabled.
Open the internet browser and enter the host name of CU 354
instead of the IP address. The internet browser will now try to
connect to CU 354. The host name can be read in the display, but
can only be changed by either a GSC file (configuration file) or via
a webserver. See Change of network setting
A host name is required to use DHCP.
This is the first display shown when connecting to CU 354.
Fig. 127 Connection to CU 354
Factory setting
User name: admin
Password:
When you have entered user name and password, a Java
Runtime Environment application starts up in CU 354, provided
that it has been installed on the computer. If this is not the case,
but the computer is connected to the internet, then use the link on
the screen to download and install the Java Runtime Environment
application.
Fig. 128 Display with link to the JavaScript
The Java Runtime Environment application will then export the
CU 354 user interface (including display and operating panel) to
the computer screen. It is now possible to monitor and control CU
354 from the computer.
on page 64.
Fig. 129 Network setting
admin
®
application
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