Hardware
2--16
1070 072 196-101 (00.06) GB
IP-Table
Normally, the IP table is not necessary. In an IP table, the references be-
tween the IP address, the module name and the Ethernet address can be
established; compare to routing table.
By specifying this table the message load can be reduced, the module name
on COM-E can be determined, and the Ethernet address for this module can
be defined anew.
The table is constructed in the following way:
IP Address Module
Name
Ethernet Address
[hex]
Comment
123.20.2.123 Controller_2 00-60-34-00-80-44 ; In the back of the
; hall to the left
123.20.2.165 Controller_8 00-60-34-00-81-77 ; Main control
. IPaddress,modulename,andEthernetaddressaredivided byTABsor
spaces, and entered in this notation and order!
The Ethernet address can be followed by a comment, divided by a semico-
lon.
The module name may have a maximum of 31 characters. The module
name is accepted as a COM-E name if the IP address of the system table
matches the IP address of the IP table.
. A maximum of 64 entries is permitted!
IP-Lifetime
Default: 120 ; 120 seconds
The connection with a communication partner is set up via the IP address.
The assignment between the IP and the physical Ethernet address is done
via ARP messages. This assignment is not determined anew before each
data exchange, but will be valid as long as the time set in the IP Lifetime. A
data exchange within this timeframe retriggers this timer.
Example for an entry in the configuration file:
IP-Lifetime: 200 ; 200 seconds
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