Enter Key; Pf Keys; Blank Keys - IBM 3270 Operator's Manual

Data Entry Keyboard
ENTER Key
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PF Keys
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Blank Keys (in Numeric Mode)
Pressing the ENTE R key tells the program that you have
completed your message and are ready for the information on
the screen to be entered into the computer.
While your display station is signaling the program, the
INPUT INHIBITED indicator comes on, making your keyboard
inactive. Most programs, when acting on an ENTE R key signal,
will turn off this indicator. This is up to the program, however,
and you must refer to the appropriate Program User's Guide to
determine what action will occur. If the INPUT INHIBITED
indicator remains on for an abnormally long time after use of the
ENTER key, press the RESET key to turn it off.
The keys labeled PF1-PF5 are Program Function keys. As their
name implies, their purposes are determined by the particular
program that you're working with. Each key sends a unique
signal to the computer, which the program can detect. While
your display station is signaling the program, the INPUT
INHIBITED indicator comes on, making your keyboard inactive.
Most programs, when replying to these keys, wi II turn off this
indicator. However, this is up to the program. To find the
purposes and operations of these keys, refer to the User's Guide
for the Application Program with which you are working.
When the keyboard is in Numeric Mode and the cursor is in an
input field, three keys (@,
#, and D) generate a space when
pressed. The top portion of the key face on these keys is blank.
By now, you should be quite familiar with your display
station. If there is any area that you're still not sure about, turn
back and reread the section that discusses it. Press the key or
keys in question, and watch the result. If you still have
questions, now is the time to get them answered. Ask your
supervisor or an experienced operator for an explanation.
For examples of the work normally done on 3270 display
stations and further discussions of errors and correction of
operator errors, turn to page 90.