Comtrol PROFINET IO - Manual (Page 12)

12 ­ 2000484 Rev. E DeviceMaster UP PROFINET IO Installation Quick Start
RFID (EPCglobal Formats)
RFID (EPCglobal Formats)
Use the following procedure to configure PLC filtering and data extraction properties for RFID devices using an EPCglobal
format.
1. Set any or all of the To PLC Filter Options (RFID Only) filtering options.
2. Set any or all of the To PLC Filter Options (RFID/Barcode) filtering options.
Note: You must select at least one filtering option for filtering/data extraction to function.
3. If Antenna Grouping is desired, set RFID Antenna Grouping option to reflect your antenna configuration. The
antenna grouping allows you to treat a subset of the antennas on a RFID reader as a single RFID reader. See the
DeviceMaster UP Filtering and Data Extraction Reference Guide for more detail.
4. Set the RFID Reader Interface Type to that of your RFID Reader configuration. If your RFID Reader is not listed,
refer to the DeviceMaster UP Filtering and Data Extraction Reference Guide for the supported RFID reader interfaces.
If your RFID reader format matches one of the listed formats, then set the RFID Reader Interface Type to that
format.
5. Set the Filter Age Time to how long after the last read you want an entry to be filtered. In other words, after receiving
a tag that matches the filtering criteria, no other tags that match the same criteria will be sent until the amount of
time specified in the Filter Age Time has expired.
6. If you want the DeviceMaster UP to discard any non‐RFID tag messages, set the Discard Unrecognized Data to either
To-PLC
or To-PLC/Application.
Refer to the DeviceMaster UP Filtering and Data Extraction Reference Guide for more information.
To PLC RFID Data Format
When the PLC interface is operating in RFID filtering mode, all data sent to the PLC will be in the following format:
Field Data Type Description
Produced data
sequence number
WORD
Values = 0‐65535 (FFFF Hex)
Sequence number that is incremented with each new
message.
Length of RFID
message
WORD
Values = 20‐148
Length in bytes of following data.
Company Code
DWORD[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 DWORD[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
DWORD[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
WORD Encoding Scheme from tag data.
Filtering Value
WORD Filtering value from tag data.
Antenna Number
WORD Antenna number on RFID reader/scanner.
Tag Data Length
WORD Length of RFID tag string in bytes.
Tag Data
BYTE[128]
Tag data string (variable length field). May also include
non‐tag messages, which can optionally be sent to the
PLC and/or application.