3M Traffic Safety Systems 6204 Benutzerhandbuch

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Configuring Digital I/Os

3M Toll RFID Reader 6204

3M Toll RFID Reader 6204 User’s Guide

User’s Guide

8.4.4.

signal_read

signal_read_crc_error.py

_crc_error.py

This routine will turn on a digital output if a tag read CRC error is detected. The
output pin number can be specified on the command line. If not specified,
output pin 1 is used. The output pin will remain high for n ms, where n is either
the default of 1000 ms or the value supplied on the command line. Minimum
value for n is 10 ms.

Inputs:

<pin> – (optional) Output pin number (1–4). Default is output 1.

<time> – (optional) Time, in ms, to keep the output high. Default is

1000 ms.

<logic level> – (optional) Logic level for digital out On. 0 or 1.

Default is 1 (On).

Examples:

signal_read_crc_error.py

Turns on output 1 (logic level 1=on),
for 1000 ms on tag read CRC error.

signal_read_crc_error.py 2

Turns on output 2 (logic level 1=on),
for 1000 ms on tag read CRC error.

signal_read_crc_error.py 1 5000

Turns on output 1 (logic level

1=on), for 5000 ms on tag read
CRC error.

signal_read_crc_error.py 1 500

Turns on output 1 (logic level
1=on) for 500 ms on tag read CRC
error.

signal_read_crc_error.py 1 800 0

Turns on output 1 (logic level
0=on), for 800 ms on tag CRC
error.

8.4.5.

rf_mon.py

This routine will monitor the state of the transmitter. If the transmitter is on, it
sets the appropriate output pin high. If low, it sets the output pin low.

Inputs: <pin> – (optional) Output pin number (1–4). Default is output 1.

<logic level> – (optional) Logic level for digital out On. 0 or 1.

Default is 1 (On).

Examples:

rf_mon.py

Monitors RF status, set/clear output 1 on change, logic
level 0 for on

rf_mon.py 1

Monitors RF status, set/clear output 1 on change, logic
level 0 for on

rf_mon.py 2

Monitors RF status, set/clear output 2 on change, logic
level 0 for on

rf_mon.py 3 0

Monitors RF status, set/clear output 3 on change, logic
level 1 for on