IFM PDM360NG Series, System Manual

Page: 46 / 463

ifm System Manual ecomat mobile PDM360NG (CR1080, CR1081, CR9042) Target V01 2011-07-28
Configurations Programming interfaces
46
Configure the interface
7423
► For communication between the PDM and the computer note the IP address and the subnet mask
of the PDM!
Factory setting IP address: 192.168.082.247
Factory setting subnet mask: 255.255.255.0
► If your available network does not permit these settings, you have to adapt the IP address and the
subnet mask of the PDM:

Set the Ethernet interface
( → page 28 )
NOTE
In the Ethernet network every IP address MUST be unique. The following IP addresses, however, are
reserved for network-internal purposes and are therefore not allowed as addresses for participants:
xxx.xxx.xxx.0 and xxx.xxx.xxx.255.
Only network participants whose subnet mask is identical and whose IP addresses are identical with
respect to the subnet mask can communicate with each other.
Rule:
If part of the subnet mask = 255, the corresponding IP address parts must be identical.
If part of the subnet mask = 0, the corresponding IP address parts must be different.
Info
If the subnet mask = 255.255.255.0, 254 participants communicating with each other are possible in the
network.
If the subnet mask = 255.255.0.0, 256x254 = 65 024 participants communicating with each other are
possible in the network.
In the same physical network different subnet masks of the participants are allowed. They form different
groups of participants which cannot communicate with groups of participants having other subnet
masks.
Examples:
Participant A
IP address
Participant A
Subnet mask
Participant B
IP address
Participant B
Subnet mask
Communication of
participants possible?
192.168.82.247 255.255.255.0 192.168.82.10 255.255.255.0 yes, 254 participants possible
192.168.82.
247
255.255.255.0 192.168.82.
247
255.255.255.0 no (same IP address)
192.168.82.247 255.255.
255
.0 192.168.82.10 255.255.
0
.0 no (different subnet mask)
192.168.
82
.247 255.255.255.0 192.168.
116
.10 255.255.255.0 no (different IP address range:
82

116)
192.168.222.213 255.255.0.0 192.168.222.123 255.255.0.0 yes, 65 024 participants
possible
192.168.111.213 255.255.0.0 192.168.222.123 255.255.0.0 yes, 65 024 participants
possible
192.168.82.247 255.255.255.0 192.168.82.
0
255.255.255.0 no, the whole network is
disturbed because the IP
address xxx.xxx.xxx.0 is not
allowed