Newland NLS-EM20-EX, User Manual

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Startup settings
Packaging format
Format 1: [ STX + ATTR + LEN] + [A DATA] + [LRC]
•
STX: 0x02
• ATTR: 0x00
•
LEN: The length of the DATA data, expressed in two bytes, with the high byte first, and the value range is 0~65535.
•
AL_TYPE: 0x36
•
DATA: Data information content.
•
LRC: check character.
LRC : Check character. LRC Algorithm of check character: 0xFF^L̂EN^ÂL_TYPE^D̂ATA (^Table ̂ shows arithmetic XOR operation), all data is XOR operation in byte unit. which is 0xFF versus LEN XOR the
first byte to get a byte of data and then with LEN The second byte of the XOR is performed, and the XOR operation is repeated once until all the data is XORed. The last byte of data obtained is the check
character.
The second format is: [ STX + ATTR + LEN] + [AL_TYPE] + [Symbol DATA] + [LRC]
•
STX: 0x02
• ATTR: 0x00
•
LEN: The length of Symbology ID + DATA data, expressed in two bytes, with the high byte first, and the value range is 0~65535.
•
AL_TYPE: 0x3B
•
Symbology_ID: barcode serial number, 1 byte (for barcode serial number refer to appendix "Barcode Serial Number Comparison Table")
•
DATA: Data information content.
•
LRC: check character.
LRC : Check character. LRC Algorithm of check character: 0xFF^L̂EN^ÂL_TYPE^ ̂ Symbology_ID^ ̂ DATA (^Table ̂ shows arithmetic exclusive OR operation), all data
XOR operation is performed in byte units. which is 0xFF versus LEN XOR the first byte to get a byte of data and then with LEN The second byte of XOR is performed, and the XOR operation is repeated
once until all data is XORed. The last byte of data obtained is the check character.
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Exit settings