48
10.8 Data communication
CU 351 is equipped with a hardware enabling communication
with external units, such as a computer, via an external GENIbus
or Ethernet connection.
Fig. 76
Data communication via external GENIbus and Ethernet connection
10.8.1 Ethernet
Ethernet is the most widely used standard for local networks
(LAN). The standardization of this technology has created some
of the easiest way of creating communication between electrical
units, for instance between computers or between computers and
control units. The web server of the CU 351 makes it possible to
connect a computer to the CU 351 via an Ethernet connection.
The user interface can thus be exported from the CU 351 to a
computer so that the CU 351 and consequently the Hydro MPC
booster set can be monitored and controlled externally.
In order to use the web server, you must know the IP address of
the CU 351. All network units must have a unique IP address in
order to communicate with each other. The IP address of CU 351
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) either directly in
the CU 351 or via the web server. See the example in fig. 77.
Fig. 77
Example of setting of Ethernet
Dynamic assignment of an IP address for the CU 351 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.
A traditional Internet browser is used for connection to the web
server of the CU 351.
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 351.
In order to use dynamic assignment, the function must be
activated. Click
Use DHCP
in the menu line. A check mark
next to the menu line shows that activation has been made.
After activation in the display, open the Internet and enter the
host name of the CU 351 instead of the IP address. The Internet
browser will now try to connect to the CU 351. The host name can
be read in the display, but can only be changed by either a .gsc-
file (configuration file) or via a web server, see
on page 49.
This is the first display shown when connecting to the CU 351.
TM
03
20
44
35
05
Grundfos
G100
gateway
Intranet
Internet
Third-party
gateway
External GENIbus connection
Ethernet connection
External
GENIbus module
P/N 96086146
T
M
03
22
98
40
05
Note
To use DHCP, a host name is required.
www.motralec.com / [email protected] / 01.39.97.65.10
