Entering Numerical Values - Siemens simatic hmi op7 Equipment Manual

3.2.1

Entering Numerical Values

Entering via
system keys
Possible values
Right-justified
input
Limit-value check
Decimal places
Equipment Manual OP7, OP17
Release 04/99
You enter numerical values character-by-character (digit-by-digit) via the
input keys of the system keyboard. If the field already contains a value, this
entire value is deleted from the field as soon as you enter the first new char-
acter. Once you have begun entering a value, you can no longer quit this field
until you have confirmed or canceled your input.
The following values can be entered in numerical input fields:
Possible values
Decimal value
Hex value
Digital value
In numerical fields, input initially is normally right-justified. Digits that have
already been entered are moved to the left (pocket calculator format).
Exception:
Input fields for tags in KM format – for instance, when calling the functions
Status/Force Var – are changed to left-justified. When input begins, the old
value does not disappear from the display completely but its bit pattern is
overwritten one character at a time. You move the cursor in this type of field
by pressing or
You can configure limit values for numerical input fields. In this type of
field, a limit-value check takes place, i.e. the entered values are applied only
if they lie within the configured limits. If a value outside these limits is en-
tered, a system message is displayed and, after it has been canceled, the old
value is restored in the field.
If a numerical field has been configured with a certain number of decimal
places and too many have been entered, they are ignored; if too few have
been entered, the field is padded with zeroes.
Keys
The input keys of the system key-
0 9
...
pad belong to the numerical key
assignment.
+/– .
,
To enter characters A...F, the input
F
A
...
keys must be switched over to the
alphanumerical key assignment.
... 9
0
The input keys belong to the nume-
0
1
rical key assignment.
,
with activated Shift Lock mode.
Description
3-7