Baracoda Barcode Reader User Manual

Page 6

DualRunners – Communication Protocol v1.3

- 6 -

Data Capture

for Workforce

in Motion

Communication protocol

2.1.

Bidirectional

Bidirectional packets

packets

2.1.1.

Control messages

2.1.1.1.

Specific packets

Code ID

Description

Frame

0x01

Legacy

0x01 0x01 0x01

0x01 0x02 0x01

These two (2) sequences will be recognized and purged for backward compatibility with older

Baracoda products.

2.1.1.2.

Acknowledgment packets

Code ID

Description

Frame

0x06

ACK

0x06 0x01 0xYY

0x15

NACK

0x15 0x01 0xYY

These messages acknowledge the reception of a valid message with the expected sequence number

0xYY, before processing it.

For captured data from the scanner, ACK and NAK have the same meaning but will trigger a different

event on the scanner.

2.1.1.3.

Synchronization packet

Code ID

Description

Frame

0x16

SYN

0x16 0x01 0xYY

This message acknowledges the reception of a message to acknowledge with an unexpected

sequence number. 0xYY is the expected sequence number.

The device will resynchronize its remote sequence number when receiving this message.