ID Tech EzWriter - Configuration and Card Detect Commands; LED Control Commands

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ID TECH EzWriter
Reader Responses on page 59 for details. This is the command version of power cycling
the reader.
Note This command byte is not recognized as a command within data strings.
# (23H) Configuration Request
ACTION Transmit a byte representing the configuration of the unit as follows:
Table 2 –Configuration Byte
Bit Position*
Bit = 0
Bit = 1
0
Track 1 Read not present
Track 1 Read present
1
Track 2 Read not present
Track 2 Read present
2
Track 3 Read not present
Track 3 Read present
3
not used – should be 0
not used
4
Track 3 Write not present
Track 3 Write present
5
Track 2 Write not present
Track 2 Write present
6
Track 1 Write not present
Track 1 Write present
7
parity bit**
parity bit**
* bit 0 = lsb, bit 7 = msb
** is = 0 for units configured for 8 data bit transmission
Obtain details of the current unit configuration.
EXAMPLE The following byte (in hex) was returned: 63. It indicates a unit capable of
reading magnetic data on tracks 1 and 2; and writing magnetic data on to tracks 1 and 2.
& (26H) Card Edge Detect
ACTION The unit performs the following sequence: Transmit command
acknowledge (“^” 5EH). If not a reader/writer, then a Can’t Execute “~” reply is sent from
the unit. Wait for card swipe. Transmit Card Edge Acknowledge (“>” 3EH) after the unit
detects the card edge at the encode head. After a “Card Edge Detect”, command is
received and acknowledged. The only valid commands that are accepted for execution
are the “Abort” <ESC> and “Warm Reset” <DEL> commands. All other commands result
in an “Invalid Command” “!” response.
LED Commands. Use these commands to manipulate the reader’s LED.
L (4CH) Green LED ON
l (6CH) Green LED OFF
M (4DH) Red LED ON
m (6DH) Red LED OFF