Non-3270 Functions - IBM 3174 Reference Manual

Using Your ASCII Terminal
• Ifthe current field spans more than one line of the screen, the insert operates
in the entire field.
Print: The Print function causes the current screen to be printed. See "Printing
Screen Images (Local Copy)" on page 3-21.
RESET: You can use the Reset function to recover from an inhibited local function
that has resulted in a keyboard-locked condition. The Reset function does not
reset a locked condition resulting from a command being executed for the terminal
(X ( ) on the status line). When your keyboard is locked, symbols appear in the
Operator Information Area (OIA) of the display. The Reset function also can be
used for the following:
• To clear IDENT
• To turn off Insert mode
• To remove a host descriptor.
If none of these conditions exists, pressing RESET clears any keystrokes
previously entered but not yet processed by the 3174.
SYS REQ (System Request): You can use the SYS REQ function to switch from
communication with your application program to communication with the host
control program (SNA only). On non-SNA attached terminals, X -f is displayed for
nonsupported terminals when SYS REQ is pressed. SYS REQ causes the screen to
be cleared.
You can log offyour application program using the SYS REQ function. Enter the
SYS REQ key sequence to communicate with the host control program and then
enter the logoff command.
See "Host Control Program Communication" on page 3-19 for a description of how
your terminal operates when you are communicating with the host control
program.
TEST: The TEST function starts and ends some problem determination functions.
Afterthe display screen is cleared, the cursor is placed in the first position of the
first line. Refer to 3174 Customer Problem Determination to acquire information
about the TEST function.
Non-3270 Functions
The following functions are available by entering key sequences. Although the
functions are not normal 3270 functions, they are provided by the 3174.
BREAK: The BREAK function allows you to disconnect from the controller. (The
disconnect process may take up to 5 seconds on switched connections.) Switched
connections must be re-established; nonswitched connections are re-established
immediately. A fresh autobaud and prompting sequence may be necessary for
nonswitched connections.
Refresh: The Refresh function causes the 3174 to clear your display screen and
send the screen image again. This function is most useful when you are using a
dial-in facility and communication errors cause incorrect characters to appear on
the screen.
Resume Print: The Resume Print function allows data to be sent to a shared
printer.
3-12 3174 Establishment Controller Terminal User's Reference for Expanded Functions