TransCore MPRX, System Manual

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User Guide
TransCore Proprietary 7–4
While in download mode, the MPRX turns RF off, does not process tags, and does not
echo host commands.
Typically, TransCore trained personnel download new application code using a custom
firmware loader program.
Command List
Reader commands are divided into groups based on a primary function. The following
sections provide information about each command in command number order. Refer to
“Command Quick Reference” on page D–1 for listings of commands in numerical and
alphabetical order.
In the following text, the symbols
< and > represent variable message data. These symbols
are not part of the message syntax.
Hex digits (0–9, A–F) in either uppercase or lowercase characters may be used in data
strings and for hex digits A–F.
Reader Mode Control — Command Group 0
Group 0 commands control reader mode. The mode determines whether the reader is
transmitting data to or receiving data from a host device or terminal.
00 Switch to Data Mode (Factory Default)
Command
#00
switches the reader to data mode, which allows the reader to
transmit tag data (ID codes) to the host. In addition to switching the reader to data
mode, command #00 automatically saves to non-volatile memory (NVRAM) any user
parameters that had been changed during the command mode session. The reader
enters data mode on power up.
Caution
To save user parameter changes to non-volatile memory (NVRAM), you must send
command #00 before powering down the reader.
When MPRX mode has been enabled (#837) and while the MPRX is in data mode, the host
device can send the following commands to the MPRX:
• Command #01 Switch to Command Mode
Reader response:
Done
• Command #440 Reset Uniqueness
Reader response:
Done
• Command #8110 Switch on RF Port 0, Fire Off Check Tag Address 0 on Check Tag
Pin 0
Reader response: