6 Configure the Operation Modes
6.2.2.2.3 TCP Raw Client
Also as Raw Client the NetCom
+
requires very few parameters. The
client computer operates via the TCP/IP stack as in
6.2.2.2.2
, but now the computers waits for
incoming connections opened by the NetCom
+
. Using this mode several NetCom
+
may connect
to the same server software installation. The parameters of the serial port are defined on the
NetCom
+
, as given above (
3.1
). When the client computer is another NetCom
+
in TCP Raw
Server mode, this will virtually connect the devices attached to the serial port.
Mode
Raw Client
Destination
[192.168.1.5:2001 ]
Connect
Triggered
ShortHoldTime
[0
]
Figure 78: TCP Raw Client parameters
Under certain conditions the NetCom
+
establishes a Raw TCP connection to a pre-defined Des-
tination. The
Destination
can hold multiple hosts as targets for a connection. They are en-
tered as a comma separated list of DNS names or IP Addresses.
Each destination will have
a TCP port number, separated by a colon.
Instead of a single IP Address or DNS name, a
range of IP Addresses is also valid. This range must be followed by the TCP port number, as
in 192.168.254.12-192.168.254.17:2077.
The parameter
Connect
defines if NetCom
+
uses the connections as
Permanent
,
Triggered
or by
DSR
. With
Permanent
the NetCom
+
attempts to open the connection as soon as it is available. In
Triggered
mode any activity on the serial ports establishes the connection, inactivity of longer
than the
ShortHoldTime
cause NetCom
+
to close the connection. With
DSR
the TCP-connections
follow the state of the DSR signal at the NetCom
+
serial port. When it becomes active they are
established, until DSR becomes inactive. At that moment the connections are dropped.
September 2016
NetCom Plus User Manual
79
Summary of Contents for NetCom Plus 111
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