Comtrol UP DeviceMaster Filtering and Data Extraction Manuel d'utilisateur télécharger pdf (Page 13)

Chapter 3. RFID Data Extraction and PLC/Application InterfaceDeviceMaster UP Filtering and Data Extraction Reference Guide: 2000470 Rev. B - 13

Application RFID Data Format

3.1.2. Application RFID Data Format

When the application interface is operating in RFID filtering mode, all data sent to the application will be in

the following 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 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.

• The RFID parameters will be sent to the application in big-endian format. All parameters, with the

exception of the Tag data string, will have to be byte-swapped for use on a little-endian system.

Example:

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

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

• The data sent to an application would have the following format:

Field Data Type Description

Company Code UDINT[2]

Company Code extracted from tag data. Depending on encoding scheme,

this field may include Company Prefixes, Company Prefix Indexes, or

Government Managed Identifier.

Product/Location

Code

UDINT[2]

Product Code extracted from tag data. Depending on encoding scheme,

this field may include the Item reference, location reference, asset

reference, object class, or be set to zero.

Serial Number UDINT[2]

Serial Number extracted from tag data.

Depending on the encoding scheme, this field may include the Serial

Number or individual asset reference.

Encoding Scheme UINT Encoding Scheme from tag data

Filtering Value UINT Filtering value from tag data

Antenna Number UINT Antenna number on RFID Reader/Scanner

Tag Data Length UINT Length of RFID tag string in bytes

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)

Company Code [0]

Company Code [1]

6680

Product/Location Code [0]

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)

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 25 26

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Comtrol UP DeviceMaster Filtering and Data Extraction Manuel d'utilisateur Page 13

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