User manual

EZ Match User Manual
4-31
Communications
USB HID Configuration Options
The user has the following options for configuring and defaulting a USB version of the EZ
Match Imager:
Configuration Symbols (Data Matrix with “Configure Reader” Flag)
Symbol configuration can be performed “out-of-the-box”, as the EZ Match is configured for
Continuous Read Mode, and Data Matrix is enabled by default. Data Matrix symbols are
used to encode configuration commands when the symbology’s “configure reader” flag is
set.
If the read cycle is changed, or if Data Matrix is disabled, another configuration/default
method must be used. This is because the USB EZ Match has no external trigger, unless
the user has configured the EZ Button as a trigger.
EZ Button Configuration
By default, basic calibration can be initiated from the EZ Button (3 beeps). Note that this
only changes the camera, image processing, and symbology settings of the imager. To
default the USB EZ Match, hold down the EZ Button during power-on.
Note: This only overwrites Power-On settings with Custom Default settings, as when the
<Zrc> command is received. It does not overwrite Power-On settings with Factory
Defaults, as when the <Zrd> command is received. If Custom Defaults are misconfigured,
another method must be used to default the imager.
Implementing the Host Operating System API and Establishing a
Connection with the Microscan HID Interface
When a connection is made, the host can send serial configuration/default commands. The
imager will always be able to receive configuration commands from the host application and
send responses to those commands. However, the imager can be configured to stop producing
IN Reports to the host from symbol data output and diagnostics (service messages).