Trailing Characters
In some applications, CRC, Checksum, or other trailing characters follow the end-of-sequence
character; this option helps to adapt frame transmission to the frame boundary. The default
setting is
00
(none).
Send Characters
If
2-Byte Send Character Sequence
is enabled, the unit interprets the sendchars as a 2-byte
sequence; if this option is not enabled, the unit interprets them independently. The default
setting is
0
(disabled).
If
Send Immediately After Characters
is
not
set, any characters already in the serial buffer are
included in the transmission after a "transmit" condition is found. If this option is set, the unit
sends immediately after recognizing the transmit condition (sendchar or timeout). The default
setting is
0
.
A transmission might occur if status information needs to be exchanged or an acknowledgment
needs to be sent.
DisConnTime (Inactivity Timeout)
Use this parameter to set an inactivity timeout. The unit drops the TCP connection to the local
port if there is no activity on the serial line before the set time expires. Enter time in the format
mm:ss
, where
m
is the number of minutes and
s
is the number of seconds.
DisConnTime (00:00) ?:
To disable the inactivity timeout, enter
00:00
. Range is 0 (disabled) to 5999 seconds (99 minutes,
59 seconds). Default setting is
0
.
Send Characters
Enter up to two characters in hexadecimal representation in sendchar.
SendChar 1 (00) ? _
SendChar 2 (00) ? _
If the unit receives a character on the serial line that matches one of these characters, it sends
the character immediately, along with any awaiting characters, to the TCP connection. This action
minimizes the response time for specific protocol characters on the serial line (for example, ETX,
EOT). Setting the first sendchar to
00
disables the recognition of the characters. Alternatively, the
unit can interpret two characters as a sequence (see
Error! Reference source not found.
). The
default setting is
00.
Telnet Terminal Type
This parameter displays only if you enabled the terminal type option in Disconnect Mode. With
this option enabled, you can use the terminal name for the Telnet terminal type. Enter only one
name.
With terminal type option enabled, the unit also reacts to the EOR (end of record) and binary
options, useful for applications like terminal emulation to IBM hosts.
Summary of Contents for NetDirect
Page 1: ...NetDirect User Guide ...
