Manual

Page 21 / 33- Revision 01

ARE I2 / RS 232 – Installation Guide

7

Operating Modes of the Reader

 

There are two operational modes defined:

 

Mode 2

The reading process is triggered by an software command coming

 

 

 

from the serial interface.

 

Mode 0

Continuos read.

 

 

 

If there is an read/write transponder used, the serial number of

 

 

.

the transponder is always read.

7.1Mode 2 – Triggered by an Software Command

In operating mode 2, the exciter is always turned off. Triggered by the software command (GT; RD ; WD), the exciter is activated. After successful reading or writing of a transponder number the exciter is turned off automatically.

exciter

processor

interface

reading cycle

GT

ID

Figure 7.1.1- Software triggered reading operation

If the first reading cycle yields no result (NoRead), the on-time of the exciter is limited by the parameter TOR (time out reader): Reading cycles are continuously started until either a transponder is read successfully or the time span corresponding to the value of the pa- rameter TOR has expired. The reader will not interrupt the last running readout cycle. If no transponder number has been read, a NoRead is output.

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AEG ARE I2 manual Operating Modes of the Reader, Mode 2 Triggered by an Software Command