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TN3270—Cursor Select Key
The existing Cursor Select key is disabled if you choose to emulate the Cursor
Select key. The Cursor Select key is emulated if you specify one of the following
parameters for the STRTCPTELN command:
Parameter Value
Page Up (Roll Down) key *CSRSLT
Page Down (Roll Up) key *CSRSLT
Cursor Select key *F-key (specify a function key *F1 to *F24)
TN3270—Messages
Several types of error messages may be displayed when you are using Telnet 3270
full-screen mode.
v Key entry errors appear as flashing 4-digit numbers on the lower left corner of
the display. Press the Help key or F1 (Help) to obtain more information about the
message. See the
System Operation
book if you cannot correct the error.
v System messages include Telnet messages and are issued from the AS/400
system.
v For information on messages sent from the remote system, see the remote
system documentation.
TN3270—Handling Null Characters
All null characters are removed when a data stream is sent from a 3270 display
station. Specify one of the following values for the handle nulls (NULLS) parameter
on the STRTCPTELN command:
*REMOVE
Removes beginning and embedded null characters
*BLANK
The default value; changes beginning and embedded null characters to blanks
Trailing null characters are always removed for both values. For example, assume
the data consists of the following (0 indicates a null):
0x0yz000
The data stream sent from a 5250 display station running Telnet 3270 full-screen
with the default *BLANK would contain the following:
xyz
The data stream sent from a 3270 display station or from a 5250 display station
running a Telnet 3270 full-screen session when the value *REMOVE is specified
would contain the following:
xyz
The value *REMOVE is valid for the following devices:
v Any locally attached display
v Displays attached to a remote 5394 controller
v Personal computer displays using the workstation function
162 OS/400 TCP/IP Configuration and Reference V4R4