User Manual
Table Of Contents
- LRP75 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
- LRP75 Beta Connections
- Models and Accessories
- ASCII Chart
Standard RFID Interface
26 LRP75 Long Range Passive Reader/Writer
EXAMPLE
This example reads the 8-byte serial number. In this example the
serial number is 1E6E3DC200000001 in hexadecimal. A timeout of 2
seconds (07D0H = 2000 x 1 msec increments) is set for the
completion of the Read Tag Serial Number.
5.6.5 Command 8 (08 Hex): Tag Search
DESCRIPTION
Check to see if there is an RFID tag in the LRP75 field.
DISCUSSION
This command will activate the reader/write to "look" for a tag in the
RF field. If the LRP75 finds a tag it will return a command echo to the
host. The timeout value is given in 1 msec increments and can have a
value of 1EH to FFFEH. If no tag is present it will return an error
message.
Command from the Host Response from the LRP75
MSB LSB Remarks MSB LSB Remarks
AAH 07H Perform Command 7 AAH 07H Command Echo
07H D0H Timeout value 00H 1EH Tag ID byte 1
FFH FFH Message Terminator 00H 6EH Tag ID byte 2
00H 3DH Tag ID byte 3
00H C2H Tag ID byte 4
00H 00H Tag ID byte 5
00H 00H Tag ID byte 6
00H 00H Tag ID byte 7
00H 01H Tag ID byte 8
FFH FFH Message Terminator
Field Description
Header AAH
Command Command number in hex
Timeout Timeout value given in 1 ms units (1EH - FFFEH)
Message
Te r mi n at o r
FFFFH