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Configuring Digital I/Os
Configuring Digital I/Os
Configuring Digital I/Os
Configuring Digital I/Os
3M Toll RFID Reader 6204
3M Toll RFID Reader 6204
3M Toll RFID Reader 6204
3M Toll RFID Reader 6204
User’s Guide
User’s Guide
User’s Guide
User’s Guide
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Example (Input)
Example (Input)
Example (Input)
Example (Input)
The following example triggers a series of modem commands, when DIO
input 4 goes high.
modem.dio.in.4.positive_level = RUN_SCRIPT
modem.dio.in.4.script.num_cmds = 3
modem.dio.in.4.script.cmd1 = "modem.antennas.perform_check()"
modem.dio.in.4.script.cmd2 = "modem.diag.current_temperature"
modem.dio.in.4.script.cmd3 = "modem.stats.tag_read"
Example (Output
Example (Output
Example (Output
Example (Output))))
In the following example, DIO output 3 will trigger low when the reader is in
active mode.
dio.control.3 = modem
modem.dio.out.3.op = ACTIVE_MODE
modem.dio.out.3.polarity = NEGATIVE
8.4.
Digital I
Digital I
Digital I
Digital I/O Monitoring and Control Scripts
/O Monitoring and Control Scripts
/O Monitoring and Control Scripts
/O Monitoring and Control Scripts
Several digital I/O monitoring and control scripts are provided with the
reader to allow you to monitor the digital I/Os and take specific actions.
These Python application scripts can be used as is or modified to suit your
particular application. For detailed information on loading Python scripts,
refer to
Chapter 5 – Embedded Reader Applications
of the 3M Toll RFID
3M Toll RFID
3M Toll RFID
3M Toll RFID
Reader
Reader
Reader
Reader 6204 P
6204 P
6204 P
6204 Protocol Reference Guide
rotocol Reference Guide
rotocol Reference Guide
rotocol Reference Guide.
8.4.1.
scan_trigger.py
scan_trigger.py
scan_trigger.py
scan_trigger.py
This routine monitors the state of the digital input pin specified as the input
parameter. If the state of the pin is low, the operating mode is set to standby. If
the I/O pin state changes to high, the operating mode is set to active.
Inputs: <pin> – (optional) Input pin number (1–4). Default is digital in 1.
<trigger logic level> –(optional) 0 or 1. Default is trigger on 1.
Examples:
scan_trigger.py
Monitors digital input pin 1
scan_trigger.py 1
Monitors digital input pin 1
scan_trigger.py 4
Monitors digital input pin 4
scan_trigger.py 3 0
Monitors digital input pin 3, trigger on 0
Summary of Contents for 6204
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