Comtrol Modbus TCP Quick Start - Manual (Page 63)

DeviceMaster UP EtherNet/IP Quick Start: 2000478 Rev. D Filtering/Data Extraction Configuration - 63
Filtering/Data Extraction Configuration
PLC Filtering/Data Extraction
Use the following procedure to configure PLC filtering/data extraction. Under the Filtering/Data Extraction
Configuration section corresponding to the desired serial or socket port:
1. Set To PLC Filter Mode to the desired mode.
• If you select String (128 char max), set the Filter Age Time (below) to how long after the last read
you want an entry to be filtered.
• For RFID (EPCglobal formats):
- Set any or all of the To PLC Filter Options (RFID Only) filtering options.
- 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.
2. If Antenna Grouping is desired, set RFID Antenna Grouping option to reflect your antenna configuration.
• Set the RFID Reader Interface Type to that of your RFID Reader configuration. If your RFID Reader is
not listed, refer to the
Filtering and Data Extraction Reference Manual for the supported RFID reader
interfaces. If your RFID reader format matches one the listed formats, then set the RFID Reader
Interface Type to that format.
• Set the Filter Age Time to how long after the last read you want an entry to be filtered.
• 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 Filtering and Data Extraction Reference Manual for formatting and other 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
UINT
Values = 0-65535
(FFFF Hex)
Sequence number that is incremented with
each new message.
Length of RFID message
UINT
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 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