ABxF Command 95H SN Block Read, 119 | Escort LRP2000 guide

RFID Communications

6.5.22 ABxF Command 95H: SN Block Read

DESCRIPTION

Command 95H reads a block of data from a specified RFID tag.

DISCUSSION

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

1 kByte 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 SN Block Read consists of Family ID, serial number, a start address, and length followed by a timeout value. The eight-byte serial number of the target tag is specified. If the read length exceeds the last tag address, the controller returns an error message in the status byte. It returns a response when done, or when the timeout expires.

Field	Content
Header	0202H

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

Command	95H

Family Code	Ignored byte, set to 00H

Reserved	Ignored byte, set to 00H

Start Address	2-byte value for the starting tag address

Number of Bytes	2-byte value for the length of the fill in number of bytes

Timeout	Timeout value given in 1 ms units

Serial Number	Serial number of the tag to be addressed

Checksum	Optional checksum

Message Terminator	03H

119	LRP2000 Passive Reader/Writer

Image 124

Escort LRP2000 manual ABxF Command 95H SN Block Read, 119

Contents

LRP2000 Passive Reader/Writer Escort Memory Systems Warranty Table of Contents Rfid Communications Iii Introduction Unpacking and Inspection FCC Compliance FCC Certifications Introduction CE Statement CE Certification Changes and Modifications Dimensions LRP2000 Dimensions LRP2000 Mounting Hole Locations and Dimensions LRP2000-23 Antenna Dimensions LRP2000-26 Antenna Dimensions Installation 1 LRP2000-26 Antenna AssemblyInstalling the Antenna Antenna Environment Green Orientation Dots Location Connectors Joining Plate Green Dots Joining Plate Joining Plate and Fasteners Completed LRP2000-26 Antenna Connectors and Wiring RF Connectors and Strain Relief Internal Connectors Terminal Blocks Antenna Connectors Antenna Cabling Connecting Single Antenna System Single Antenna System Connections Connecting a Dual Antenna System Dual Antenna System Connections Data Terminal Blocks J8 Pin Number Interface J8 Signal Name DB9 Pin DB25 PinRS232 Pinouts, J8 Terminal Block J10 COM1 RS422 Power Supply Wiring Input Power PinoutJ10 Pin Number Signal Name Polarity Description Power Supply LRP2000 Wire color Connector Pin Number Input Power Supply Lugs RS232 Wiring RS422 Wiring and Termination Ethernet Wiring Digital I/O Circuitry Connector Pin Signal Name Polarity Number Inputs Outputs Terminal Signal Name Polarity Number Input from Sourcing Contact Input from NPN Sensor Sourcing Output Contact Sinking Output LED Driver Setting Jumper 32 on the Master Master/Slave ConfigurationJ32 J34 DIP Switch Settings on the Slave Master DIP Switch SettingsBank Position OFF Setting Jumper J16 on the Slave Slave DIP Switch Settings Configuring the Serial Interface COM1 Defaults1 COM1 2 COM2 COM2 Parameters COM2 DefaultsBaud Rate 1200, 2400 9600, 19200 bps Digital Board DIP Switch Dip Switch SettingsDownload Baud Rate Interface Restore Defaults Settings Configuring the Ethernet Module for Network Communication Default IP AddressOptional Ethernet Interface Ignored Menu Loading Configuration LED Indicators Server Properties Color Meaning Flashing LED Signals Error LED 4 FlashesError and Config LEDs 4 Simultaneous Flashes Error and Config LEDs 4 Alternating Flashes Faulty Network Connection No Dhcp Response Received How to Enter the Menu Configuration LRP2000 Standard PC Serial Port Set COM1 Parameters Set-Up Operating ParametersSet COM2 Parameters Operating Mode Set Operating ModeFraming Editing Checksum? 0 Disabled 1 Enabled Power up in Continuous Read Mode? Delay Between Identical DecodesStart Address Length Set RF Communication Restore Factory DefaultsReturn to Main Menu Download New Program Downloading DSP Firmware Exit to Operating Mode Command protocols Conventions ABx Command Set Listings Single Tag CommandsMulti-tag Commands User I/O Commands Command Parameters Multi-tag Command Parameters Start Continuous Read Field Number Content Bytes Standard ABx ProtocolSingle Tag Example Multi-tag Example ABxS Command 04H Fill Tag Command from HostExample Field Remarks ABxS Command 05H Read Response from Controller ABxS Command 06H Write ACH ABxS Command 07H Read Tag Serial NumberE0H ABxS Command 08H Tag Search ABxS Command 0DH Stop/Start Continuous Read Config Blink Command Response Field RemarksBehavior Description ANT Field Content ABxS Command 14H Get Memory StatusResponse from controller ABxS Command 17H Lock Family Code ABxS Command 16H Write Family CodeDescription ABxS Command 82H SN Read All 6CH AAH FFH 1EH ABxS Command 83H Start/Stop Continuous SN Read All0BH C5H 4BHFCH ABxS Command 84H Fill Tag All Response to a successful command follows this form ABxS Command 85H Read All Termination Packet ABxS Command 86H Write All ABxS Command 87H Read Tag SN All 6EH3CH D2H ABxS Command 88H Tag Search All ABxS Command 8BH Write Family Code All AAH 8BH ABxS Command 8CH Lock Family Code All AAH 8CH ABxS Command 8DH Start/Stop Continuous Read All AAH 8DH Data response from controller ABxS Command 91H Memory Lock All Command is formatted as shown below ABxS Command 94H SN Fill 00H 01H SN byte ABH ABxS Command 95H SN ReadF3H ABxS Command 96H SN Write A4H ABxS Command 10H Set Output Remarks LSB Bit Output D Output C Output B Output a0CH 0EH ABxS Command 11H Input Status Remarks LSB Bit Input D Input C Input B Input a Field Contents ABx Fast ProtocolPacket Size Checksum ABx Fast Single Tag Command Structure ABx Fast Multi-tag Command Structure ABxF Command 04H Fill Tag Header 0202H Command Size ABxF Command 05H Read Command from Host Field ContentResponse from Controller Field Content AEH ABxF Command 06H Write E7H EEH ABxF Command 07H Read Tag Serial NumberF8H F2H ABxF Command 08H Tag SearchA3H 1DH ABxF Command 0DH Start/Stop Continuous ReadF6H E1H ABxF Command 14H Get Memory StatusF1H E5H ABxF Command 16H Write Family CodeE8H ABxF Command 17H Lock Family Code ABxF Command 82H Read Data and SN All 101 A6H Command from Host Response from Controller Field Content 6FH ABxF Command 83H Start/Stop Continuous SN Read All 103 6AH 7BH 105 ABxF Command 84H Fill All 106 ABxF Command 85H Block Read All 107 EBH C8H ABxF Command 86H Block Write All 109 ABxF Command 87H Read Tag SN All 110 9BH F4H ABxF Command 88H Tag Search All ETX ABxF Command 8DH Stop/Start Continuous Read All 113 ABxF Command 91H Memory Lock All 114 ABxF Command 8BH Write Family Code All 115 ABxF Command 8CH Lock Family Code All F7H Response form Controller Field Content ABxF Command 94H SN Fill117 B0H 9DH ABxF Command 95H SN Block Read 119 120 ABxF Command 96H SN Block Write 121 4DH ABxF Command 10H Set Output 123Output LSB Bit Status Output D Output C Output B Output a Byte ABxF Command 11H Input Status 124 EDH 125EAH ABx Ascii Protocol Command Structure Command Packet StructureABx Ascii Protocol ABx Ascii Protocol Response Structure Example Ascii Command, Fill Tag Command/Response Size127 STX Command from Host Field Ascii Hex Ascii String ValueResponse from Controller Field Ascii Hex Ascii String Value ABx Error Codes Multi-tag Error CodesABx Standard Error Codes Error Code Description ABx Fast Error Codes ABx Ascii Error CodesField Bytes Contents Field Number of Ascii Contents Characters Multi-tag Command Error Code 131 Mechanical Specifications ElectricalCommunication Environmental Accessories Available ModelsOptions Tags 134 Decimal Hex Character 135 DEL