Omron NT21 Reference Manual page 357

Input of Numeric Values and Character Strings
Reference:
342
When inputting a character string, the specification of an input field, window
opening procedure, and the major purposes of a temporary input field are identi-
cal to those for inputting a numeric value. The explanation below concentrates
on how a character string is input; other information is not discussed. For the
procedure for specifying an input field and opening a window, and for the major
purposes of a temporary input field, refer to the corresponding items in the de-
scription of the operation for numeric value input.
In character string input operation, bar code data can be input as a character
string using a bar code reader that is connected to the PT.
Only the following topics are described here.
Using the input key – string and input key – control on the same screen
Using a bar code reader
S A character string input field will be disabled when the interlock function is be-
ing used for the input field and the interlock bit in the host that controls the input
field's operation is OFF. (Refer to Controlling PT Operations with Interlock Bits
on page 368 for details.)
S Likewise, the interlock function can be set for touch switches and the touch
switch's operation can be disabled by turning OFF the host's interlock bit that
controls the touch switch. (Refer to Controlling PT Operations with Interlock
Bits on page 368 for details.) Check the status of the interlock bits allocated to
control touch switches before inputting numerical values.
Restrictions Specific to Character String Input When Using Temporary In-
put Fields
When inputting a character string, a temporary input field can be used as for in-
putting a numeric value. But when using a temporary input field for inputting a
character string, the following specific restrictions should be noted.
When inputting a character string, the temporary input field must also be the
character string input field.
Even if the number of digits of a temporary input field is smaller than the num-
ber of digits of the objective input field on the base screen, the temporary input
field can be used to input a character string. In this case, however, blank digits
remain in the character string input field on the base screen and these blank
digits are filled with spaces. In the initial display, characters that overflow the
temporary input field are disregarded.
Even if the number of digits of a temporary input field is larger than the number
of digits of the objective input field on the base screen, the temporary input field
can be used to input a character string. In this case, however the input charac-
ter string will overflow the character string input field on the base screen and
the overflowing characters are ignored.
A temporary input field is not displayed if an input field does not exist on the
base screen.
Section 3-7