Microscan MS-4 User Manual download pdf (Page 74)

3-30 MS-4 Imager User’s Manual

USB HID Interface

USB HID Configuration Options

The user has the following options for configuring and defaulting a USB version of the MS-4:

Configuration Symbols (Data Matrix with “Configure Reader” Flag)

Symbol configuration can be performed “out-of-the-box”, as the MS-4 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 MS-4 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 MS-4, 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).

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Microscan MS-4 User Manual Page 74