Newland NLS-BS80, User Manual

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24
Packet Mode
When Packet mode is off, data is sent in raw format (unpacketed).
When Packet mode is on, data is sent with the packet format defined below to ensure integrity of data
when received by the host or the scanner. For batch transmission, the scanner sends 0x7E, 0x01, 0x30,
0x30, 0x30, 0x30, 0x00, 0x00, 0x3B, 0x03, 0x00 to notify the host of the completion of batch
transmission.
Note that this feature is only available when using Bluetooth SPP/BLE or USB COM Port Emulation.
Packet format: {Header} {LEN} {DATA} {Trailer} {Checksum}
Header: 0x7E 0x01 0x30 0x30 0x30 0x30
LEN: Length of DATA, 2 bytes
DATA: Barcode data sent by the scanner or programming command sent by the host device
Trailer: 0x3B 0x03
Checksum: Computation sequence: 0x00+DATA; computation method is XOR, byte by byte
Host Response: {Header} {Response Value} {Response Method} {Trailer}
Header: 0x02 0x01
Response Value: 0x06 (ACK) or 0x15 (NAK)
Response Method: 0x00 (No operation), or
0x01 (2 short high-frequency beeps for ACK; 1 low-frequency beep for NAK), or
0x02 (200ms-long vibration for ACK; 1s-long vibration for NAK)
Trailer: 0x3B 0x03
Scanner Response: {Header} {Response Value} {Trailer}
Header: 0x02 0x01
Response Value: 0x06 (ACK) or 0x15 (NAK)
Trailer: 0x3B 0x03
Packet Mode On Packet Mode Off (default)