Visara 1481 - Manual (Page 51)

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Operating Procedures
Numeric Lock Mode
Numeric Lock mode is set or reset in Offline Setup. The Numeric Lock feature allows
fields to be defined to accept only the entry of the digits 0 through 9, Period (.),
Minus (-), and Dup keys (and comma [,] on some international keyboards). When
the cursor enters a numeric field, the NUM symbol appears on the operator status
row, and only the permitted characters can be entered. If you attempt to enter
nonnumeric characters in a numeric field, the keyboard locks. Locking the keyboard
turns off the keyboard click if it was on, and turns the keyboard click on if it was off.
Press the Reset key to restore normal operation.
On Typewriter keyboards, the display station goes into lowercase mode when the cursor
enters a numeric field. On Data Entry keyboards, the display station goes into upper-
case mode when the cursor enters a numeric field.
Nonnumeric characters can be entered in numeric fields by doing the following:
For Data Entry keyboards and Typewriter keyboards, press the Shift key ( ) to enter
uppercase characters in a numeric field.
For Data Entry keyboards only, press the Alpha key ( ) to enter any lowercase char-
acter in a numeric field.
Note that using the Shift Lock key does not override the Numeric Lock feature.
See “Numeric Lock” on Page 3-9 for information on how to set the Numeric Lock.
Cursor Select Data Entry
The Cursor Select key, Cr Sel (Cursr Sel for 88-key keyboards), can be used to select
certain data fields from a formatted screen. The application program must define
selectable fields by writing the appropriate attribute. These data fields are read by
the application program for additional processing.
Each selectable data field is preceded by an appropriate field attribute character and a
designator character. Designator characters precede one of two types of fields: selection
fields and attention fields. Items in a selection field can be selected with the Cursor
Select key and the program can be notified of the selection by selecting an attention
field.
A nonselected selection field is preceded by a question mark (?) that changes to a
greater than symbol (>) when the field is selected. Attention fields are preceded by an
ampersand (&) or a space. These symbols do not change when an attention field is
selected.