Control Keys for Possible Programming
There are some keys on the RF Terminal keypad that when pressed, can transmit special ASCII characters
back to the host program. This feature might be used by a programmer to allow the operator to review
transactions.
You can use these keys for special program functions, such as scrolling through data,
backing up steps, jumping, finishing a process, etc.
The keys are as follows:
Key
Code transmitted to Host
UP ARROW key
FS (ASCII 28)
DOWN ARROW key
GS (ASCII 29)
LEFT ARROW key
RS (ASCII 30)
RIGHT ARROW key
US (ASCII 31)
BEGIN key
ETB (ASCII 23)
END key
CAN (ASCII 24)
SEARCH key
VT (ASCII 11)
The STATUS key is reserved to only display the Time and Date.
The Control keys can be used
without
pressing the ENTER key by using the
Control Keys Only
Terminal
Setup parameter. See
Chapter 2;
RF System Setup
for details.
ASCII Control Character and Extended ASCII Conversion (2D scanner only)
Since some ASCII characters are used to frame the RF packet all ASCII codes in the range 00h-1Fh and
80h-FFh are converted to %nn where the “nn” is the ASCII value. This only applies to 2D data packets.
Summary of Contents for 7000 Series
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