Settings - Siemens SIMEAS R-PMU Manual

10.2.2

Settings

IP addresses are generally subdivided into different classes:
Table 10-1 SIMEAS R-PMU and network
Class
A 1.x.x.x to 126.x.x.x
B 128.0.x.x to 191.255.x.x
C 192.0.0.x to 223.255.255.x
SIMEAS R-PMU also supports Classless Inter-Domain Routing (CIDR). In the following
paragraphs, Class C IP addresses are used to explain the settings. Class C addresses can be
used to define a total of 254 subnetworks with 254 devices each. Existing SIMEAS R networks
with SIMEAS R V21.xx, 23.xx and V30.xx can be extended with SIMEAS R-PMU devices.
Please also note that the Internet Assigned Numbers Authority may have already assigned
several address ranges of the possible network numbers for public networks. The following
address ranges can be used freely:
Class A: 10.0.0.0 to 10.255.255.255
Class B: 172.16.0.0 to 172.31.255.255
Class C: 192.168.0.0 to 192.168.255.255
The numbers 255 and 0 are used as broadcast addresses in networks or as identifiers for the
complete subnetwork and being allowed to not be used.
In this example, the following IP addresses are used:
192.168.subnet.device (subnet: 1 to 254 and device: 1 to 254)
The following regulations for the assignment of IP addresses are made (see also figure 10-5):
Every network card in the DAKON, to which the SIMEAS R-PMU devices have been
connected, forms a separate subnetwork.
Every DAKON is assigned the device address 1.
Every router is always assigned the device address 2 within a subnetwork.
Every PDC is assigned the device address 3. The PDC is located in the same subnetwork
as the SIMEAS R-PMU.
All hubs/switches connected to a network card are located in the same subnetwork.
Device addresses between 100 and 200 must be assigned to the networked SIMEAS R-PMU
for every subnetwork.
If a router is used, the dynamically assigned addresses must be parameterized to the
addresses between 230 and 254 (router address band).
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
Range of network numbers
10
10.2 LAN Communication
Subnet mask
255.0.0.0
255.255.0.0
255.255.255.0
121