Comtrol UP DeviceMaster Filtering and Data Extraction - Manual (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
0
Product/Location Code [1]
234564
0
Serial Number [0]
Serial Number [1]
118412
0
Encoding Scheme 48
Filtering Value 0
Antenna Number 4
Tag Data Length 27
Tag Data
4,H3014006860E511000001CE8C
(ASCII characters)
Fields Data Type Description