General Reader Operational Commands - Intermec 680X Reference Manual

SECTION 4
General Reader Operational
Commands
The card reader has two LEDs, red and green that may be
used to give a visual status to the user for either magnetic
cards or smart cards. In addition, the printer can be polled
for general card reader status as well as the current state of
the LEDs. Semicolons separate elements of the returned
status:
Command: {RS?} Status – returns power, card inserted,
and LED status as follows:
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"
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Command: {RG:data} Controls Green Led – requires 1
data byte.
Response: {RG!} if the command was received (for any data
sent).
Command: {RR:data} Controls Red Led -- requires 1 Data
byte.
Response: {RR!} if the command was received (for any data
sent).
RG/RR data:
P:0/1 for smart card (ICC) power off or on
S:0/1 for card not seated or seated
B:0/1 for button currently connected to reader
G:0/1/F for Green Led off or on or flashing
R:0/1/F for Red Led off or on or flashing
Example Response – no button reader
{RS!P:0;S:1;G:F;R:0}indicating ICC power off, card is
seated and green led is flashing
Example Response – with button reader
{RS!P:0;S:0;B:1;G:0;R:0} indicating ICC and LEDs off,
no card seated, button in contact
0 (zero) – Turn LED off
1 (one) – Turn LED on
F (flash) – Begin flashing LED
Intermec Portable Printers Technical Reference Manual
Operation
4-39