Settings Of The System Network - Siemens SINUMERIK 840D sl Commissioning Manual

Configuring the network

16.2 Settings of the system network

16.2 Settings of the system network
The configuration for the DHCP server, the routing, active protocols, for DNS servers and
other properties of the system network is performed in the Settings of the System Network
window.
Setting
DHCP activated
DHCP server synchronization mode
DHCP address range
294
Description
Activates or deactivates the DHCP mode for the
system network. This automatically assigns IP
addresses to the nodes in the system network.
Activates or deactivates the DHCP server
synchronization mode. If this setting is active,
then the DHCP servers synchronize themselves
in the system network (X120) so that only one of
them actively assigns addresses. This makes it
possible to operate multiple NCUs or PCUs
concurrently without having to adjust the network
settings.
The DHCP servers that are not active go into
"standby" mode; in this mode they regularly get
the current address data and TCU data from the
active server so that if the active server fails a
standby server can take over the active role
without data loss.
The Master priority setting influences the
•
synchronization so that the server with the
"Master" setting is always the active server (it
must be active in the network).
Deterministically the same control is then
always the DHCP server and the current
address and TCU data can be found there.
Master priority must only be set for a single
DHCP server in the system network.
The settings Low priority and High priority can
•
be used to specify which DHCP server is to
be preferably used as active server. A DHCP
server with low priority is then only used as
active server when a server with high priority
cannot be found in the network.
Default: High priority
Specifies the range for DHCP addresses. The
range starts at the address specified at Start and
ends at the address entered at End. The resulting
range of numbers has the following default
setting:
Start address = first address in the system
network
End address = start address + 10 or + 2 (if less
than 16 addresses are available)
Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
SINUMERIK Operate (IM9)