Omron NT21 Series, Справочное руководство

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2-12 Section Inputting Numeric Values
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2-12 Inputting Numeric Values
2-12-1 Numeric Key Type (Numeral Input)
Numeric key type numeral setting input fields are input fields for inputting numer-
ic values on the screen.
The numeric values input into a numeral setting input field using touch switches
are written to a numeral memory table.
The values can be input either in decimal or hexadecimal format.
The input field functions as a numeral display when it is not receiving inputs.
Outline of Operation
The basic operation of a numeric key type numeral setting input field is shown
below.
1, 2, 3... 1. A numeric value is input into a numeral setting input field using touch
switches.
Input
1 2 3
4 5 6
7 8 9
1 2 3 4
PT
Numeric value displayed in
the numeral setting input field
Input the numeric value with the numeric
keys on the screen.
2. On confirming the input numeric value with the ENT key or touch switch it
is written to a numeral memory table.
At this time, the occurrence of change in the contents of the numeral
memory table is notified to the host via the PT status notify area.
Input
1 2 3
4 5 6
7 8 9
1 2 3 4
NT31/NT31C
PT
Data writing
Numeral memory table
Notification
Host
On pressing the key, the input value is written to
the numeral memory table and the change is notified
to the host at the same time.
1 2 3 4
Restrictions
•
A maximum combined total of 256 of the following elements can be registered
for one screen. (Same for window screen) Even in the case of an overlapping
screen with eight child screens, it is only possible to register numeral setting
input fields on one of the child screens.
Numeral setting input field (numeric key type),
Numeral setting input field (thumbwheel type)
There is no restriction on the number of input fields that can be registered for
one screen data file: any number can be registered as long as the data file
capacity is not exceeded. However, if a large number of elements are regis-
tered, check that the restrictions on element display are complied with by
referring to Display Restrictions (page 425).
•
It is not possible to set input from more than one numeral setting input field (nu-
meric key type or thumbwheel type) on the same screen to one numeral
memory table.
In cases where values at the host must be input both in decimal and hexadeci-
Function Outline
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