Copyright © 2010, International Technologies & Systems Corporation. All Rights Reserved
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ID TECH EzWriter
AMC Commands and Responses
The following sections describe the commands that the host can send to the reader, this
is followed by a section describing the reader responses to the host. There are three
groups of commands, which can be sent to the reader. The first is used to manipulate the
reader (LED’s, status, etc.). The second is used to read and process magnetic stripe
data. The third group is used to write magnetic stripe data. Table 1, Table 3 and
Table 4
summarize the commands of each group.
The unit executes commands received from the host one at a time and cannot execute a
new command until the previous command has been completed. Once the unit receives
a command, it performs the requested action and reports the results back to the host.
Unless otherwise specified, the examples shown assume that the unit uses the default
settings.
Reader Commands
Table 1 – USI Reader Command Summary
ASCII
HEX
Name
Use
Length*
<XON>
11
Resume transmission
Resume transmission to host
1
<XOFF>
13
Pause Transmission
Pause Transmission to host
1
%
25
Retransmit
Retransmits the last message again
1
9
39
Version Report
Transmits Version String
1
<ESC>
1B
Abort
Abort command
1
<DEL>
7F
Warm Reset
Simulates power cycle
1
#
23
Configuration Request
Sends Reader Configuration Byte
1
L
4C
Green LED ON
Turns on Green LED
1
l
6C
Green LED OFF
Turns off Green LED
1
M
4D
Red LED ON
Turns on Red LED
1
m
6D
Red LED OFF
Turns off Red LED
1
(
28
Green LED Flash
Start flashing Green LED
1
)
29
Red LED Flash
Start flashing Red LED
1
Y
59
Buzzer ON – Not support
Turns on Buzzer
1
y
79
Buzzer OFF – Not support
Turns off Buzzer
1
&
26
Card edge detect
1
K
4B
Yellow On – UIC command Turns on both LEDs
1
k
6B
Yellow Off – UIC command Turns off both LEDs
1
|
7C
Yellow Flash – UIC
command
Flashing both LEDs
1
*Length does not include protocol overhead characters, if any.
