Operating the TP 170A
4-5
TP 170A Equipment Manual
Release 12/99
Meanings of buttons
Table 4-1
Significance of buttons
Button
Function
Purpose
...
Enter digits
Enter digits
0
to
9
.
...
Enter characters
Enter the characters
A
to
F
.
Change sign
Change sign from
+
to
–
and
back.
Enter decimal point
Enter decimal point or
comma. The assignment
and labeling of this button is
language–dependent.
Move input position
to the left
Move current input position
one character to the left.
Move input position
to the right
Move current input position
one character to the right.
Cancel (Escape)
Discard input and close the
system keyboard.
Delete character
Delete the character to the
left of the input position.
Enter
Confirm input and close the
system keyboard.
Enter value
Characters entered are aligned to the right. On entering a new character, all those
already entered are shifted one position to the left (pocket calculator format).
On exceeding the maximum number of characters, the last character entered is
overwritten.
Limit values
Limit values can be configured for numeric input fields. In this case, values
entered are only accepted when they lie within the limits configured.
Note:
If an attempt is made to enter a value which is outside the configured limit values,
the system keyboard is closed and the original value reinserted. In addition, a
system message is triggered.