Subnet 1
0100 1000=48h =72
Subnet 2
0100 1001=49h =73
Subnet mask
1111 1110=FEh =254
Subnet mask
1111 1100=FDh =252 (Next possible
alternative)
The next possible alternative mask address allows also a wider range of IP
addresses to have access to subnet 1 and 2. It means that also other computers
can have access to them.
In the example, it would allow the 3rd IP address identifier 48h;49h;4ah;4bh
which is in decimal 72;73;74;75.
6.4.7.
Examples of communication system addressing
Communication system addressing should be based on the following network
design rules:
*
The router and REF 542plus devices belonging to the LAN plant have to
have the same subnet mask address.
*
The default gateway address configured in each REF 542plus has to be
equal to the IP address of the router.
*
The IP addresses of REF 542plus have to be consecutive.
42
REF 542plus
Multifunctional Protection and Switchbay
Control Unit
Installation Manual for Web Interface
Installation manual
1MRS755865
