Comtrol UP DeviceMaster Filtering and Data Extraction Manuel d'utilisateur télécharger pdf (Page 12)

12 - DeviceMaster UP Filtering and Data Extraction Reference Guide: 2000470 Rev. B Chapter 3. RFID Data Extraction and PLC/Application

Interface

PLC RFID Data Format

Note the following:

• Not all fields will be valid for all formats. For some tag types, such as the DoD-64 and DoD-96, the

Product Code will be set to zero.

• At present, the second Product/Location Code UINT will always be set to zero. The second UINT has been

added to allow for future EPCglobal Specification extensions.

• The Company Code, Product/Location Code, Serial Number, Encoding Scheme, Antenna Number, and

Filtering Value will be set to zero for non-tag messages.

Example:

• A DeviceMaster UP serial port is operating in RFID filtering mode.

• An RFID tag is received in Intermec ASCII Format: 4,H3014006860E511000001CE8C

• The data sent to a PLC would have the following format:

Tag Data BYTE[32]

Tag data string (variable length field). May also include

non-tag messages, which can optionally be sent to the

PLC and/or application.

Field Data Value(s)

Produced data sequence number 0-65535 (FFFF Hex)

Length of RFID message 59

Company Code [0]

Company Code [1

66800

Product/Location Code [1]

234564

Serial Number [0]

Serial Number [1]

118412

Encoding Scheme 48

Filtering Value 0

Antenna Number 4

Tag Data Lengt h 27

Tag Data

4,H3014006860E511000001CE8C

(ASCII characters)

Fields Data Type Description

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 25 26

Pas de commentaire

Comtrol UP DeviceMaster Filtering and Data Extraction Manuel d'utilisateur Page 12