Newland EM3000 Spécifications télécharger pdf (Page 144)

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Message Interception & PackMessage Interception & Pack

Code Programming ON

Code Programming OFF

Tools

Message Pack

Introduction

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

of data pack. Data pack effects 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:

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

computation method is XOR, byte by byte. 2、

Normal Pack

【Pro CMD：0314010】

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Newland EM3000 Spécifications Page 144