User manual

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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.