8: Setup Mode: Channel Configuration
XPress™ DR+ Industrial Device Server User Guide
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Flow
Flow control sets the local handshaking method for stopping serial input/output. The default
setting is 00.
Flow (00) ? _
Use the following table to select flow control options:
Table 8-3. Flow Control Options
Flow Control Option
Hex
No flow control
00
XON/XOFF flow control
01
Hardware handshake with RTS/CTS lines
02
XON/XOFF pass characters to host
05
Port Number
The setting represents the source port number in TCP connections. It is the number that identifies
the channel for remote initiating connections.
Port No (10001) ? _
The default setting for port 1 is
10001
. The default setting for Port 2 is
10002
. The range is 1-
65535, except for the following reserved port numbers:
Table 8-4. Reserved Port Numbers
Warning:
We recommend that you not use the reserved port numbers for this
setting as incorrect operation may result.
Use Port
0
for the outgoing local port to change with each connection. The port range is 50,000 to
59,999. Each subsequent connection increments the number by 1 (it wraps back around to
50,000).
Only use this automatic port increment feature to initiate a connection using TCP. Set the port to
a non-zero value when the unit is in a passive mode or when using UDP instead of TCP.
Port Numbers Reserved for
1 – 1024
Reserved (well-known ports)
9999
Telnet setup
14000-14009
Reserved for Redirector
30704
Reserved (77F0h)
30718
Reserved (77FEh)
