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
Mechanical Specifications
4 LRP75 Long Range Passive Reader/Writer
2.3 RF Range and Orientation
The following information should be considered when positioning the
LRP75. The path of the tags through the RF field should be within the
guaranteed reading/writing range unless sufficient site testing has
been performed to assure consistent RF communications.
Figure 2-2. LRP75 reading range
2.4 Locating the LRP75
The reading range of the LRP75 is primarily affected by two
environmental variables. The first, and most influential of these
variables, is the presence of metal or any other electrically conductive
material within the range of the antenna. The reader can be safely
mounted to a metal surface without compromising the reading range;
however, any conductive material within the area in front of and to the
sides of the reader - anywhere a tag can be read - will affect the
reading range to some extent. The most reliable method for
determining the effects of metal on the reading range is to perform site
tests.
Electromagnetic radiation is the second environmental variable that
affects the reading range and overall performance of the LRP75. The
reader should not be located close to any sources of electromagnetic
radiation. Do not mount a LRP75 closer than two meters from another
LRP75, and a greater distance from longer-range readers, such as the
EMS LRP820. Again, site testing will provide the most reliable means
to determine the read range in a given environment.