Omron Programmable Terminals NT631, Инструкции по эксплуатации

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Input of Numeric Values and Character Strings
Section 8-7
S
Inputting operation using touch switches
A numeric value can be input in the same manner as when using an electronic
calculator by using the touch switch “input key – control”.
<Initial display>
When a numeral setting input field is displayed, the contents of a numeral
memory table where the input numeric value is written are displayed.
<Cursor frame>
If a “Cursor frame” is set for the numeral setting input field, the frame that en-
closes the input field is displayed while the field is accepting input.
1234
Input field
Cursor frame
<Inputting an integer part and a decimal fraction part>
In the integer part, numerals are input from the lowest digit position and the input
value is shifted to the left as new numerals are input. If the input value exceeds
the number of display digits of the integer part, the numeral at the highest digit
position is cleared.
After the input of a decimal point, the succeeding numeric input is regarded as a
decimal fraction. In the decimal fraction part, the numeral input first is displayed
in the first place. After that the input numerals are displayed to the right of the
preceding input. If the input value exceeds the display range, the numeral occu-
pying the first position to the right of the decimal point is cleared.
Key input Displayed numeric value
(Initial state) 1234.5678
9 0009.0000
0 0090.0000
. 0090.0000
4 0090.4000
5 0090.4500
<Display of a sign>
If the numeral setting input field is assigned the “signed value” setting, the sign (+
and
−
) toggles each time the
"
key is pressed.
<Confirming the input numeric value>
After inputting a numeric value, always press the ENT key or key to confirm
the input. When the input is confirmed, the input numeric value is written to the
numeral memory table and the occurrence of a change in the contents of the
numeral memory table is notified to the PT status notify area (page 270).
The ENT key and the key differ from each other in the following respects.
- ENT key
When more than one numeric key type numeral setting input field exits on the
screen, the input objective shifts to the next input field when the input is con-
firmed. The input objective shifts in the order specified by the Support Tool.