Campbell NL200, Руководство пользователя

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Appendix C. NL200/201 Settings
C-5
Disabled
This port will not be used.
RS-232 Serial Server Port Number
This setting is used when the RS-232 port is configured as a Serial Server or
MODBUS/TCP gateway. To communicate with a TCP/IP server, the client
application must open a socket to that server. The socket of a specific server is
uniquely identified by an IP address of the host where the server is running and a
port number associated with the server application on that host. This entry is
where the port number of the server is set. Ensure that the client application is set
to use the same port number as configured here. Most MODBUS/TCP
applications use port 502. (range 1..65535)
RS-232 Baud Rate
This setting specifies the baud rate of the RS-232 port. The connected device
must be set to communicate at the same baud rate.
RS-232 RTS
The NL200/201 asserts the RTS and DTR lines when doing RS-232
communications. This setting allows the user to disable the RTS line if needed so
that it will not be asserted. Some hardware will not function if the RTS line is
asserted, but typically, it is not necessary to change this setting from its default
(enabled).
RS-232 TCP Timeout
This setting will determine how fast the device will timeout on the open TCP
connection. For Serial Server and MODBUS/gateway configurations the device
will close the TCP connection if no activity is detected for the timeout period. For
the TCP Client configuration the device will close the TCP client connection if no
activity is detected and then immediately open another connection with the remote
server. This behaviour helps to ensure that the connection is functional as the
device does not know the frequency or nature of the expected data. Set to 0 for no
timeout (not recommended). (range 0..999) (seconds)
RS-232 PakBus Beacon Interval
This setting, in units of seconds, governs the rate at which the NL200/201 will
broadcast PakBus messages on the associated port in order to discover any new
PakBus neighbouring nodes. It will also govern the default verification interval if
the value of the Verify Interval setting for the associated port is zero.
RS-232 PakBus Verify Interval
This setting specifies the interval, in units of seconds, that will be reported as the
link verification interval in the PakBus hello-transaction messages. It will
indirectly govern the rate at which the NL200/201 will attempt to start a hello
transaction with a neighbour if no other communication has taken place within the
interval.
Port Neighbours Allowed Settings
Example: (129,129) (1084,1084)
In the example above, nodes 129 and 1084 are assigned as neighbours to the
NL200/201.