Visara 1481 - Manual (Page 56)

701408-002 4-11
Operating Procedures
Using the Light Pen to Select Data
You can use the optional light pen to select data from fields that are defined for light pen
operations. Ask your supervisor to tell you which fields on the panels you use are set up
for light pen selection.
Follow these steps to select an item with the light pen:
1) Press the light pen to the screen on the field you want to select.
2) If you have turned on the light pen click, a click occurs when the field is selected.
3) If the field is preceded by ?, the ? changes to > when the field is selected.
4) If the field is preceded with &, processing begins as soon as you select the item.
5) If necessary, complete the selection by pressing a keyboard key (for example,
Enter) or perform an additional light pen selection (like pointing to an End
command) to conclude.
Electronic Security Lock
To invoke the secure (locked) mode, the operator enters the Lock sequence (Right
Alt key, Right Shift key, and Enter key). The control unit displays
on the status
line and the terminal adds a 3 to act as a prompt for a user-definable three-key password
to “unlock” the terminal. To Unlock, type in the three-key password. Each key decre-
ments the prompt number. If the password does not match, the 3 redisplays on the
status line. When the password matches, the terminal is unlocked and the control
unit removes the
symbol.
Powering off the terminal while locked means it will be locked when powered on next
time. Upon power-up
is displayed, requiring all three password keys to be entered to
unlock the terminal. To change the password, see “Change KEYLESS Password” on
Page 3-10.