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Escort LRP2000 6.5.9 ABxF Command 17H: Lock Family Code, 6.5.10 ABxF Command 82H: Read Data and SN All

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RFID Communications

LRP2000 Passive Reader/Writer 100

6.5.9 ABxF Command 17H: Lock Family Code

DESCRIPTION:

Command 17H locks the family code byte to its current value, so that it cannot be written. Once locked, the

family code cannot be unlocked.

6.5.10 ABxF Command 82H: Read Data and SN All

DESCRIPTION

Command 82H reads a block of data from all RFID tags-in-field or all those with the specified family code.

Data is returned with the serial number of the corresponding tag.

DISCUSSION

This command is used to read segments of data from contiguous areas of tag memory. It handles up to

1KByte of data transferred to the host with one command. 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 controller returns a

syntax error. The response to this command contains the serial number of the responding tags preceding

the data from those tags. The termination packet is transmitted when the timeout expires. Each packet is

sent to the host as soon as it is available. The returned serial numbers can be used to read from or to write

to tags-in-field via the SN Block Read or Write commands. The SN Block Read All consists of a header, a

family code, a start address and length, followed by a timeout value and the message terminator, 03H, as

shown below. A special termination packet is sent when the timeout expires. If the read range exceeds the

last tag address, the controller returns an error message in the status byte.

The command is formatted as follows:

Command from Host Response from Controller

Field Content Field Content

Header 0202H Header 0202H

Command Size 0003H Response Size 0001H

Command Code 17H Command Echo 17H

Timeout, 2 seconds 07D0H Checksum E7H

Checksum 0EH Terminator 03H

Terminator 03H

Field Content

Header 0202H

Command Size Packet length in bytes excluding the header, command size, checksum, and terminator bytes.

Command 82H

Family Code Tag Family Code - 00H = all tags

Reserved Ignored byte, set to 00H

Start Address 2-byte value for the starting tag address

Number of Bytes 2-byte value for the number of bytes to be read

Timeout 2-byte value for timeout in 1 ms units (1EH - FFFEH)

Checksum Optional checksum

Terminator 03H

Contents

Main Escort Memory Systems Warranty Table of Contents Chapter 1 Introduction Chapter 2 Installation and Guidelines Chapter 3 Electrical Interface Chapter 4 Communications Interface ii Chapter 6 RFID Communications Page 1 1 Introduction 1.1 Introduction 1.2 Unpacking and Inspection 1.3 FCC Compliance Page Page Page Page Page Page Page Page 11 2.2 Installation 2.2.1 LRP2000-26 Antenna Assembly Page 13 Page Page Page 17 3.2 Antenna Cabling Page Page 21 3.3 Data Terminal Blocks Page 23 3.4 Power Supply Wiring Page Page 3.8 Digital I/O Circuitry 27 3.8.1 Inputs 3.8.2 Outputs Electrical Interface 29 Figure 23: J20 Output Connector Table 5: Output Connector Pinout Page Page Page 33 3.9 Master/Slave Configuration 3.9.1 Setting Jumper 32 on the Master 35 3.9.2 DIP Switch Settings on the Slave 3.9.3 Setting Jumper J16 on the Slave 37 4 Communications Interface 4.1 Configuring the Serial Interface 4.1.1 COM1 4.1.2 COM2 Page 39 4.1.3 Digital Board DIP Switch 4.2 Optional Ethernet Interface 4.3 Configuring the Ethernet Module for Network Communication Page Page 43 4.4 LED Indicators Communications Interface LRP2000 Passive Reader/Writer 44 Figure 39: LED Indicators Table 13: LED Indicators 45 Page 5 Menu Configuration 5.1 How to Enter the Menu Configuration 5.2 Set-Up Operating Parameters 5.2.1 Set COM1 Parameters 5.2.2 Set COM2 Parameters 49 5.2.3 Set Operating Mode Page 51 5.2.4 Set RF Communication 5.2.5 Restore Factory Defaults 5.2.6 Return to Main Menu 53 5.3 Download New Program 5.4 Downloading DSP Firmware 5.5 Exit to Operating Mode 6 RFID Communications 6.1 Introduction LRP2000 Passive Reader/Writer 56 6.1.1 ABx Command Set Listings Table14, Table 15, and Table 16 list the ABx commands recognized by the LRP2000. NOTE: The delay between the characters of a command sent to the controller cannot be longer than 200 ms. Table 14: Single Tag Commands 6.2 Command Parameters 6.2.1 Command Timeout 6.2.2 Delay Between Duplicate Decodes 6.3 Multi-tag Command Parameters 6.3.1 Tag Repeat Count 6.3.3 Start Continuous Read 59 6.4 Standard ABx Protocol Table 18: Multi-tag Example 6.4.1 ABxS Command 04H: Fill Tag 61 6.4.2 ABxS Command 05H: Read 6.4.3 ABxS Command 06H: Write 63 6.4.4 ABxS Command 07H: Read Tag Serial Number 6.4.5 ABxS Command 08H: Tag Search 6.4.6 ABxS Command 0DH: Stop/Start Continuous Read 65 6.4.7 ABxS Command 14H: Get Memory Status 67 6.4.8 ABxS Command 16H: Write Family Code 6.4.9 ABxS Command 17H: Lock Family Code 6.4.10 ABxS Command 82H: SN Read All 69 6.4.11 ABxS Command 83H: Start/Stop Continuous SN Read All 71 6.4.12 ABxS Command 84H: Fill Tag All 73 6.4.13 ABxS Command 85H: Read All LRP2000 Passive Reader/Writer 74 75 6.4.14 ABxS Command 86H: Write All 6.4.15 ABxS Command 87H: Read Tag SN All 77 6.4.16 ABxS Command 88H: Tag Search All 6.4.17 ABxS Command 8BH: Write Family Code All 79 6.4.18 ABxS Command 8CH: Lock Family Code All 6.4.19 ABxS Command 8DH: Start/Stop Continuous Read All 81 6.4.20 ABxS Command 91H: Memory Lock All 83 6.4.21 ABxS Command 94H: SN Fill Page 85 6.4.22 ABxS Command 95H: SN Read 6.4.23 ABxS Command 96H: SN Write 87 6.4.24 ABxS Command 10H: Set Output 89 6.4.25 ABxS Command 11H: Input Status 6.5 ABx Fast Protocol 91 6.5.1 ABxF Command 04H: Fill Tag 93 6.5.2 ABxF Command 05H: Read 6.5.3 ABxF Command 06H: Write 95 6.5.4 ABxF Command 07H: Read Tag Serial Number 6.5.5 ABxF Command 08H: Tag Search 97 6.5.6 ABxF Command 0DH: Start/Stop Continuous Read 6.5.7 ABxF Command 14H: Get Memory Status 99 6.5.8 ABxF Command 16H: Write Family Code This example change the family code of the tag to 00H. DESCRIPTION Command 16H changes the family code of an RFID tag. 6.5.9 ABxF Command 17H: Lock Family Code 6.5.10 ABxF Command 82H: Read Data and SN All 101 LRP2000 Passive Reader/Writer 102 103 6.5.11 ABxF Command 83H: Start/Stop Continuous SN Read All Page 105 Response from controller 6.5.12 ABxF Command 84H: Fill All 107 6.5.13 ABxF Command 85H: Block Read All LRP2000 Passive Reader/Writer 108 109 6.5.14 ABxF Command 86H: Block Write All 6.5.15 ABxF Command 87H: Read Tag SN All 111 6.5.16 ABxF Command 88H: Tag Search All 113 6.5.17 ABxF Command 8DH: Stop/Start Continuous Read All 6.5.18 ABxF Command 91H: Memory Lock All 115 6.5.19 ABxF Command 8BH: Write Family Code All 6.5.20 ABxF Command 8CH: Lock Family Code All 117 6.5.21 ABxF Command 94H: SN Fill LRP2000 Passive Reader/Writer 118 This example fills the tag with serial number 1DB0320000104E0 with FFH. 119 6.5.22 ABxF Command 95H: SN Block Read LRP2000 Passive Reader/Writer 120 121 6.5.23 ABxF Command 96H: SN Block Write LRP2000 Passive Reader/Writer 122 This example writes 4 bytes to the tag with serial number 1DB0320000104E0 starting at address 0AH. 123 6.5.24 ABxF Command 10H: Set Output 6.5.25 ABxF Command 11H: Input Status 125 The following example shows only input B is ON, and A, C, and D are OFF. 6.6 ABx ASCII Protocol 6.6.1 ABx ASCII Protocol Command Structure 6.6.2 ABx ASCII Protocol Response Structure 127 LRP2000 Passive Reader/Writer 128 129 6.7 ABx Error Codes 6.7.1 Multi-tag Error Codes 6.7.2 ABx Standard Error Codes 6.7.3 ABx Fast Error Codes 6.7.4 ABx ASCII Error Codes 131 6.7.5 Multi-tag Command Error Code 132 Appendix A Specifications A.1 Electrical A.2 Communication A.3 Mechanical Specifications A.4 Environmental Appendix B Models and Accessories B.1 Available Models B.2 Options B.3 Accessories B.4 Tags 134 Appendix C ASCII Chart ASCII Chart 135