User's Manual

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Output Function
QR1 trigger output - transponder read (QREAD)
QN1 trigger output - NoRead (QNoREAD)
Table 5.1: definition of the digital output channels
5.4.1 Logical level
At rest all digital outputs are logical 0. This means the rest contact is closed and the working contact is
open.
5.4.2 Logical function
The logical function of the digital outputs is determined by the particular parameter setting.
If QR1 = 2 resp. QN1 = 2, the logical function is defined as follows:
After cold- and warm start all trigger outputs are set to logical zero. After processing the reading re-
sult, the corresponding output is set to logical 1 according to Table 5.1. If both trigger outputs QR1
and QN1 are set to parameter value 2, therefore only one of the trigger outputs can be at logical 1 at a
time.
The result of each reading cycle is displayed at the corresponding digital output until the end of the next
reading process.
The data filtering functions for the serial interface (e.g. CN - suppression of the NoRead output or CID)
do not influence on the digital outputs.
5.5 Indicating elements (LEDs)
LED1: on when antenna is operated
LED2: on when last read was not successful
LED3: on when last read was a success
LED4: on as long as the digital input is high
LED5: on when a hardware error was detected
LED6: flashing as long as the reader is powered and the microprocessor is working properly
LED7: on as long as commands were received on the RS 232 interface
LED8: on as long as information is transmitted from the RS.232 interface
LED9: not used
5.6 DIP-switches
In normal condion (ex work) all DIP-switches are set OFF (down).