User Manual
Table Of Contents
- LRP76 Long Range Passive Reader/Writer
- Table of Contents
- Getting Started
- Mechanical Specifications
- Power and Electrical Interface
- Configuration Menu
- Standard RFID Interface
- 5.1 Introduction
- 5.2 Command Timeout Values
- 5.3 Address Blocks
- 5.4 ABx Error Codes
- 5.5 Command Descriptions
- 5.6 ABx Standard Commands
- 5.6.1 Command 4 (04 Hex): Tag Fill
- 5.6.2 Command 5 (05 Hex): Block Read
- 5.6.3 Command 6 (06 Hex): Block Write
- 5.6.4 Command 7 (07H): Read Tag Serial Number
- 5.6.5 Command 8 (08 Hex): Tag Search
- 5.6.6 Command D (0D Hex): Start/Stop Continuous Block Read
- 5.6.7 Command E (0EH) Read SN and Data
- 5.6.8 Command F (0FH) Start/Stop Continuous Read SN and Data
- 5.7 ABx Fast Commands
- 5.7.1 ABx Command Packet Structure
- 5.7.2 Command 4 (04 Hex): Tag Fill
- 5.7.3 Command 5 (05 Hex): Block Read
- 5.7.4 Command 6 (06 Hex): Block Write
- 5.7.5 Command 7 (07H): Read Tag Serial Number
- 5.7.6 Command 8 (08 Hex): Tag Search
- 5.7.7 Command D (0D Hex): Start/Stop Continuous Block Read
- 5.7.8 Command E (0EH) Read SN and Data
- 5.7.9 Command F (0FH) Start/Stop Continuous Read SN and Data
- Technical Specifications
- Models and Accessories
- ASCII Chart
Standard RFID Interface
36 LRP76 Long Range Passive Reader/Writer
5.7.2 Command 4 (04 Hex): Tag Fill
DESCRIPTION
Fill an RFID tag with a one byte value over multiple contiguous
addresses.
DISCUSSION
This command is commonly used to clear an RFID tag's memory. It
writes a one byte value repetitively across a specified range of tag
addresses.
The fill function requires one data value byte, a starting address, and a
fill length. It will then proceed to fill the tag with the data value byte,
starting at the specified start address for the specified number of
consecutive bytes.
The timeout value is given in 1 msec increments and can have a value
of 1EH to FFFEH (65,534 ms). When the timeout is set to 0, the
LRP76 will return a syntax error.
Field Description
Header <STX><STX>
Command Size Packet length in bytes, excluding the header,
command size, checksum and terminator bytes.
Command 04H
Start Address 2-byte value for the tag address where the fill will
start
Fill Length 2-byte value for the number of tag addresses to be
filled
Timeout 2-byte timeout value given in 1 ms units (1EH -
FFFEH)
Data Value Byte The byte to be used as fill
Checksum optional checksum
Message
Te r mi n at o r
FFFFH