Rockwell Automation 1775-S4B,D17756.5.3 User Manual SCANNER/MSG HND - Manual (Page 124)

Using Commands in Report Generation
Chapter 10
10Ć21
You could also use the following input access functions which you can use
to time out the terminal keyboard:
Getchar()—which searches the input buffer for a character
Testchar()—which tests the input buffer for a character
Testline()—which tests the input buffer for an available complete line
Refer to chapter 11 for detailed information on these functions.
Example using the inquire command:
If you enter:
IN US_8’SET POINT:\X’
P US_8
When the command line above executes, the following line displays on the
CRT:
SET POINT:
This line prompts you to enter a number followed by an [ENTER].
Suppose you enter 2 3 8 [ENTER], the 1775-S4B scanner would store 238
in user symbol US_8. The \X places the user input on the same line as the
message.
So the entry would appear:
SET POINT: 238
Then the 1775-S4B scanner prints user symbol US_8:
238
Definition: To remove a user symbol.
Abbreviation: DEL
Format: DEL
Description: In addition to deleting system symbols from the S4B>
prompt, you can use the delete command to delete user symbols.
10.3.11
Delete