2 error codes, 3 cid – suppression of id codes – AEG COMPACT READER ARE I2 User Manual

Page 16

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Manual
Page 16 / 33- Revision 01

ARE I2 / RS 232 – Installation Guide

AEG
Identifikationssysteme GmbH

Söflinger Straße 100
D-89077 Ulm
Tel. ++49(0)731-933-1340/1877
Fax ++49(0)731-933-1855
e-mail: [email protected]

After entering a valid command together with a parameter value, the system answers by

sending the parameter value and <CR>. Example:

Command:

MD <SP> 2 <CR>

Output:

2 <CR>

After entering an invalid parameter value, the system answers with the corresponding error

code

Parameter settings can be queried by sending the command without adding an parameter

value. Example:

Command:

MD <CR>

Output:

1 <CR>

If a single <CR> is input, the reader answers with a single <CR>. Example:

Command:

<CR>

Output:

<CR>

Please note: If echo mode is active, a single <CR> forces the reader to output <CR> <CR>

(echo plus output).

6.2 Error Codes

If a command is not entered correctly, the reader sends one of the following error codes:

Wrong command:

<NAK> #00 <CR>

Wrong parameter: <NAK> #02 <CR>

6.3 CID – Suppression of ID Codes

With CID=1 only the first of in succession identical transponder numbers is output on the

serial interface. The possibly following identical transponder numbers are suppressed, as

long as no new valid transponder number is received, processed and output. NoReads do

not influence the data filtering.

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