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Communication Protocol CubiScan 25 Command Set

CubiScan 25 Service Manual 53

It is configured as a communications device class (or USB CDC). The device attaches, on the USB

side, to an RS-232 communications line and the computer operating system. This makes the USB

device appear as a traditional RS-232 port.

The CubiScan 25 command set can be sent, via USB, using RS-232 communication software.

The following table shows the parameters for asynchronous communications through the USB

cable.

CubiScan 25 Command Set

This section describes the commands recognized by the CubiScan 25 to cube and weigh objects

and to set up the CubiScan 25 for cubing and weighing (dimension units, factor toggle,

calibration, and so on).

All command packets begin with a STX (start of text) and end with an ETX (end of text), CR

(carriage return), and LF (line feed). Each command has a Command field and an optional Data

field. For example:

All commands receive either an Acknowledge response (ACK), or a Negative Acknowledge

response (NACK). An ACK includes the Command followed by an “A” and may include a data

field. A NACK includes the Command followed by a “N,” indicating that an error occurred. For

example:

ACK: <STX><COMMAND><A><DATA><ETX><CR><LF>

NACK: <STX><COMMAND><N><ETX><CR>

1 VCC Red +5 VDC

2 D- White Data -

3 D+ Green Data +

4 GND Black Ground

Asynchronous

Communication

Parameters

Baud Rate 9600

Parity None

Data Bits 8

Start Bits 1

Stop Bits 1

Quantronix CUBISCAN 25 User Manual

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