User's Manual

Query a Variable
Query a single variable to display its current value.
· Booleans display as true or false.
· Integers display as 0..255 with leading zero suppression.
· Characters display as single quoted printable ASCII characters in the range 0x20..0x7E.
· Values from 0x00 .. 0x1F and 0x7F..0xFF will be with a leading backslash lowercase x and the
two digit upper case hex number.
· The output of the variable displays between curly braces.
For example: RF IDeas>rfid:out.led?
{3}
Variables are set and stored in RAM and are lost when the utility is closed. Use the cfg.write function
to write the RAM configuration to flash memory. Use the cfg.read function to read the flash memory.
49 Chapter 4 ASCII Command Protocol