XL™ SERIES XL-BASIC Programming Guide 23-13
the quotes, and the line is again terminated with a carriage return line feed because
of the lack of a comma or semicolon.
In the last example the first value is formatted to 8 characters, (due to using the ‘;’
option) and the second value is printed using no extra spaces, and the line is NOT
terminated since it ends with a comma.
Normally ASCII text is sent out the serial port but at times it may be necessary to
send special control codes, for example to initialize a serial display. To send out a
single character control code in HEX format use a ‘&’ character as a prefix to the
HEX data. The HEX data is in the range of 00 to FF.
print &hh where & indicates to the system a two character hex value follows,
and the hh is the hex value from 00 to FF.
Example: print &0D sends a carriage return
print &0A sends a line feed.
PRINT2 Same as print except the output is to com port 2.
PRINT3 Same as print except the output is to com port 3.
PRINT4 Same as print except the output is to com port 4, the RS-485 port.
INPUT Waits for a numeric value to be entered on comport 1. If no input is received within
the timeout period defined by the INPUTDELAY command then program execution
continues and the variable used with the INPUT command will remain unchanged.
Like standard BASIC this command can be used to print a prompt to the user.
Example: opencom1
input “Enter First Value “,a
input “Enter Second Value”,b
print “Sum = “,a+b
end
INPUT2 Waits for a numeric value to be entered on comport 2. See the Input command for
more information.
INPUT3 Waits for a numeric value to be entered on comport 3. See the Input command for
more information.
INPUTDELAY(x) Set a timeout delay for serial input operations. The range is 1 to 60000
milliseconds. The default is 10000 or 10 seconds.
DIGITS(#) Set the number of digits to display to the right of the decimal point. The
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