Newland FM200 Uživatelská příručka stáhnout pdf (Strana 110)

Message Intersect & Pack

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Page 104

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Tools

Introduction

Data Pack is for the special requirements of barcode message. There are 3 types of data

pack. Data pack affects all data formats, in that be sure to load the default “Disable Pack”

if pack is not required.

** Disable Pack

【Pro CMD：0314000】

Normal Pack

Normal pack format:：

[STX + ATTR + LEN] + [AL_TYPE + DATA] + [LRC]

STX：0x02

ATTR：0x00 »

LEN：Barcode message length is expressed by 2 bytes, range “0x0000~0xFFFF”which is between 0 and »

65535.

AL_TYPE：0x36

DATA：Barcode message »

LRC：Parity byte »

The algorithm:

1. computation sequence is LRC=0xFF+STX+ATTR+LEN+AL_TYPE+DATA

2. computation method is XOR, byte by byte.

Normal Pack

【Pro CMD：0314010】

Message Pack

1 2 ... 105 106 107 108 109 110 111 112 113 114 115

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Newland FM200 Uživatelská příručka Strana 110