Campbell NL241, Instruction Manual

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Appendix C. NL241 Settings
C-11
RS-232 TCP Serial Client Port
This setting specifies the TCP port of the outgoing TCP Serial Client
connection (range 1 to 65535).
C.4 CS I/O Tab
CS I/O Configuration
This setting controls which process will be associated with the CS I/O port.
The following values are defined:
TCP Serial Server
The device will listen for an incoming TCP connection from a remote
client. The port number of the listening connection is specified in the CS
I/O Service Port setting. Data received on the TCP connection will be
forwarded to the CS I/O port, and data received on the CS I/O port will be
forwarded to this TCP connection.
PakBus
This port uses the PakBus® protocol.
Modbus/TCP gateway
The device will listen for incoming MODBUS/TCP connections from a
remote client. The port number of the listening connection is specified in
the CS I/O Service Port setting. The device will convert incoming
MODBUS/TCP frames to MODBUS/RTU and forward them to the CS
I/O port. The device will wait for a response from the MODBUS/RTU
device and forward the response back to the remote MODBUS/TCP client
over the established TCP connection.
Disabled
This port will not be used.
CS I/O Service Port
This setting is used when the CS I/O Configuration is set to 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 serial server is set. Typically, it is not necessary
to change this entry from its default (range 1 to 65535).
SDC Address
Communication with the datalogger via the CS I/O port is done using SDC
(Synchronous Device Communication). The datalogger will address the
devices with which it wishes to communicate using an SDC address. The CS
I/O port can be configured to respond to SDC address 7, 8, 10, or 11.