TransCore MPRX, System Manual

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User Guide
TransCore Proprietary 7–2
Chapter 7 Commands
This chapter discusses the host-transmitted commands that are used
to control the Multiprotocol Reader Extreme (MPRX) configuration and
operation.
Introduction
The MPRX is delivered from the factory with specified default settings that determine how
the reader operates. Commands transmitted by the host device can change the default
settings and control additional features. The commands can be transmitted by manually
entering the commands at the host keyboard if the host is in terminal emulation mode.
The MPRX can also communicate with ASCII terminals.
Operating Modes
The MPRX has three modes of operation: data mode, command mode, and download
mode. The software for the MPRX contains two separate programs — boot and
application. The boot program has control of the MPRX on startup and when operating
in download mode. The application program has control of the MPRX during data mode
and command mode operation and holds the application code. Together, they control
the MPRX in the three modes of operation.
Data Mode
The MPRX is in the data mode upon power-up. While in the data mode, the MPRX sends
all communications, such as tag IDs and reports, as data messages to the host device.
Reports provide information on input status changes (input0 and input1), a presence
without tag report, and buffer overflow information. When MPRX mode has been enabled
(#837) and while the MPRX is in data mode, the host device can send the following
commands the MPRX:
• Command #01 changes the MPRX from the data mode to the command mode.
• Command #440 provides a one-time reset of all tag uniqueness timers at which
point the previously set timeout interval resumes.
• Command #8110 turns on RF port0 and sends the command on Ctag pin 0 to fire off
Ctag address 0.
• Command #8111 turns on RF port1 and sends the command on Ctag pin 0 to fire off
Ctag address 1.