Rockwell Automation 1771-DB Basic Module User Manual - Series A - Manual (Page 64)

Operating Functions
Chapter 5
5–27
Causes a question
mark (?) to print on the console device. This
prompts
you to input two numbers separated by a comma. If you do
not enter
enough data, the module prints TRY AGAIN on the console
device.
Example:
u10 INPUT A,B
u20 PRINT A,B
uRUN
?1
TRY AGAIN
?1,2
1
2
READY
You can
write the INPUT statement so that a descriptive prompt tells
you what to
enter. The message to be printed is placed in quotes after
the INPUT statement.
If a comma appears before the first variable on
the input list,
the question mark prompt character is not displayed.
Examples:
u10 INPUT“ENTER A NUMBER” A u10 INPUT”ENTER A NUMBER–”,A
u20 PRINT SQR(A) u20 PRINT SQR(A)
u30 END u30 END
uRUN uRUN
ENTER A NUMBER ENTER A NUMBER–100
?100 10
10
You can
also assign strings with an INPUT statement. Strings are
always terminated with a carriage
return (cr). If more than one string
input is requested
with a single INPUT statement, the module prompts
you
with a question mark.
5.4.16
Statement: INPUT
(continued)