Download - Little, Big Racing

R&S Business Unit Automotive
Via L.Romagnoli, 24 - 41033 Concordia sulla Secchia (Modena) Italy
Tel.: +39 0535 57711 (r.a.) - Fax.: +39 0535 54550
Uffici amministrativi: Via G. Brodolini, 35 - Fax.: +39 0535 54533
Email : guest@digitek.it - Internet : http://w w w .digitek.it
DATAVIEW Pg. 10/133
1.6 Communication – Ethernet
To activate any communication session between a logger and your PC it is first necessary to have both the PC and
the logger working within a similar IP network group.
The default IP setting of your data logger will be written on the documentation, which is sent with it. To change your
computer IP setting, select: Start/settings/network connections – select the Local Area Connection / Internet
Protocol TCP/IP to display the IP properties as shown here.
You only need to change the IP address and the Subnet mask, all other properties are unnecessary. Press Ok to
accept the changes. The IP shown in this picture is only an example and should not be copied.
For users who need to change the IP of the data logger to suit a fixed network IP, we have specific re-programming
tools for this purpose, contact your dealer.
Understanding IP addresses.
There are 3 significant lines to the IP Address.
• Top line is the IP Address which has 4 sets of 8bit values separated by a dot eg: 196.168.10.10
• Middle line is the Subnet mask which is typically 255.255.0.0 or 255.255.255.0
• The default gateway is unimportant.
The IP Address is split up into 2 sections known as the Network IP and the Host. To determine which part of the IP
Address relates to which section (Network IP or Host) it is necessary to look at the subnet mask.
Subnet mask Example 1
A Subnet mask of 255.255.0.0 means that the first 2 parts of the IP address are Network IP and the second 2
parts are Host
Subnet mask Example 2
A Subnet mask of 255.255.255.0 means that the first 3 parts of the IP address are Network IP and only the last
part is the Host
For PC’s or loggers to communicate freely on the same local network the Network IP and the Subnet mask must
be the same. Individual data loggers or PC identity is defined by the value of the Host.
The Value of the Host is an 8 bit number which is 0-255. In reality you are only able to use numbers from 1 to 254.
Examples.
Address – 192.168.10.18
Subnet – 255.255.0.0
To add a logger to this Network group you can program the logger with the following:
Address – 192.168.10.1 to 254 as long as it is not 18 or
Address – 192.168.1 to 254 as long as it is not 10.18
Basically you are using the same Network IP and only making a change to the Host to define individual identity.
You will see that a subnet mask of 255.255.255.0 gives a maximum possible number of hosts of only 255. A
subnet mask of 255.255.0.0 gives a maximum number of hosts of 255 x 255 = 65,000.
data view_std_manual v1.4.doc Digitek Spa Digitek Spa