Campbell NL200, Руководство пользователя

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Appendix C. NL200/201 Settings
C-2
CS I/O IP Interface Identifier
When the device is configured to operate in Bridge Mode, the datalogger will
address the device using this identifier. The datalogger can address up to two “CS
I/O IP” devices. The corresponding CS I/O IP Address settings in the datalogger
will control the interface. CS I/O IP Interface 1 uses SDC channel 3. CS I/O IP
Interface 2 uses SDC channel 1.
Bridge Mode Forward Code
When the device is configured for bridge mode, it forwards Ethernet packets to the
datalogger. Because the device is aware of the MAC address and IP address being
used by the datalogger, it is able to do some filtering on incoming packets and
only forward relevant packets. This decreases the amount of traffic on the
relatively bandwidth-limited CS I/O port and minimizes the amount of Ethernet
processing the datalogger needs to perform.
It may be desired to further reduce the amount of CS I/O traffic. This setting
allows the filtering by the device to be customized to some degree. The default
value of this setting is 65535 (0xFFFF hex) and will forward all packets that have
been determined to be relevant for proper datalogger IP communication. If
desired, other codes may be entered to filter out certain packet types.
A packet is forwarded to the datalogger if its corresponding bit is set in the
“Bridge Mode Forward Code.” It will not be forwarded if its corresponding bit is
cleared. Single bits or multiple bits may be cleared to accomplish custom
filtering. The following are example values of this code.
Forward Code Values
65535 (0xFFFF): Leave all bits set to forward all relevant packets.
65531 (0xFFFB): Clear bit 2 to forward all relevant packets except UDP
Broadcast packets. Filtering UDP broadcasts will disable the dataloggers ability
to respond to DevConfig discovery packets but in many cases will greatly reduce
the total number of forwarded packets.
65279 (0xFEFF): Clear bit 8 to forward all relevant packets except IPv6 packets.
Filtering these packets may be desired if the datalogger is on an IPv6-enabled
network but not required to respond to any IPv6-related traffic.
DHCP
Enable if the device should be configured to use DHCP (Dynamic Host
Configuration Protocol) to automatically acquire an IP address, subnet mask, and
gateway from the local DHCP server. After DHCP is enabled, the device will
reboot and it may take a few moments to acquire the IP settings. In order to see
the acquired settings you may have to refresh by pressing F5.
IP Address
The IP address uniquely identifies this node on an internet. If DHCP is enabled,
this is the IP address obtained from the DHCP server. If DHCP is disabled, a
static IP address must be obtained from your network administrator for use with
this device. (It is recommended to configure a static IP address.)