ABxS Command 91H Memory Lock All | Escort LRP2000 specification

RFID Communications

6.4.20 ABxS Command 91H: Memory Lock All

DESCRIPTION

Command 91H locks contiguous blocks of read-write memory. Once bytes are locked, they cannot be written to, nor can they be unlocked.

DISCUSSION

The memory can be locked only in contiguous blocks. The command passes one parameter for the first block and another parameter for the number of blocks to be locked. This is one of only two ABx commands that address the memory of the tag using these parameters. The block structure of the tags is governed by the ISO-15693 specification. Attempting to write to locked bytes returns a Write Security Error.

The command is formatted as shown below.

Field	Remarks
Command	Command number in hex preceded by AAH

Family Code	Tag Family ID - 00H = all tags

Reserved	00H

Timeout	Timeout value given in 1 ms units (001EH - FFFEH)

First Block	First block of memory to lock

Number of Blocks	Number of contiguous blocks of memory to lock

Message Terminator	FFFFH

Example

This example locks blocks 0-7 on all tags in range with the Family ID of 02H. Two tags are found and locked.

Command from Host

MSB	LSB	Remarks
AAH	91H	Perform Command 91

02H	00H	Family ID/Reserved

07H	D0H	2-second Timeout

00H	08H	Lock Configuration

FFH	FFH	Message Terminator

Response from Controller

MSB	LSB	Remarks
AAH	91H	Command Echo

02H	08H	Ntag/Status

FFH	FFH	Message Terminator

LRP2000 Passive Reader/Writer

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Escort LRP2000 manual ABxS Command 91H Memory Lock All, Command is formatted as shown below

Contents

LRP2000 Passive Reader/Writer Escort Memory Systems Warranty Table of Contents Rfid Communications Iii Unpacking and Inspection Introduction FCC Compliance FCC Certifications Introduction CE Certification CE Statement Changes and Modifications LRP2000 Dimensions Dimensions LRP2000 Mounting Hole Locations and Dimensions LRP2000-23 Antenna Dimensions LRP2000-26 Antenna Dimensions Antenna Environment Installation1 LRP2000-26 Antenna Assembly Installing the Antenna Green Orientation Dots Location Green Dots Joining Plate Connectors Joining Plate Joining Plate and Fasteners Completed LRP2000-26 Antenna RF Connectors and Strain Relief Connectors and Wiring Internal Connectors Terminal Blocks Antenna Cabling Antenna Connectors Single Antenna System Connections Connecting Single Antenna System Dual Antenna System Connections Connecting a Dual Antenna System J8 Pin Number Interface J8 Signal Name DB9 Pin DB25 Pin Data Terminal BlocksRS232 Pinouts, J8 Terminal Block J10 COM1 RS422 Power Supply LRP2000 Wire color Connector Pin Number Power Supply WiringInput Power Pinout J10 Pin Number Signal Name Polarity Description Input Power Supply Lugs Ethernet Wiring RS232 Wiring RS422 Wiring and Termination Digital I/O Circuitry Inputs Connector Pin Signal Name Polarity Number Outputs Terminal Signal Name Polarity Number Input from Sourcing Contact Input from NPN Sensor Sourcing Output Contact Sinking Output LED Driver Master/Slave Configuration Setting Jumper 32 on the MasterJ32 J34 OFF DIP Switch Settings on the SlaveMaster DIP Switch Settings Bank Position Slave DIP Switch Settings Setting Jumper J16 on the Slave 2 COM2 Configuring the Serial InterfaceCOM1 Defaults 1 COM1 COM2 Defaults COM2 ParametersBaud Rate 1200, 2400 9600, 19200 bps Settings Digital Board DIP SwitchDip Switch Settings Download Baud Rate Interface Restore Defaults Ignored Configuring the Ethernet Module for Network CommunicationDefault IP Address Optional Ethernet Interface Menu Loading Configuration Server Properties LED Indicators Color Meaning Error and Config LEDs 4 Alternating Flashes Flashing LED SignalsError LED 4 Flashes Error and Config LEDs 4 Simultaneous Flashes Faulty Network Connection No Dhcp Response Received LRP2000 Standard PC Serial Port How to Enter the Menu Configuration Set-Up Operating Parameters Set COM1 ParametersSet COM2 Parameters Set Operating Mode Operating ModeFraming Editing Checksum? 0 Disabled 1 Enabled Length Power up in Continuous Read Mode?Delay Between Identical Decodes Start Address Restore Factory Defaults Set RF CommunicationReturn to Main Menu Downloading DSP Firmware Download New Program Exit to Operating Mode Conventions Command protocols User I/O Commands ABx Command Set ListingsSingle Tag Commands Multi-tag Commands Multi-tag Command Parameters Command Parameters Start Continuous Read Multi-tag Example Field Number Content BytesStandard ABx Protocol Single Tag Example Field Remarks ABxS Command 04H Fill TagCommand from Host Example Response from Controller ABxS Command 05H Read ABxS Command 06H Write ABxS Command 07H Read Tag Serial Number ACHE0H ABxS Command 0DH Stop/Start Continuous Read ABxS Command 08H Tag Search ANT Config BlinkCommand Response Field Remarks Behavior Description ABxS Command 14H Get Memory Status Field ContentResponse from controller ABxS Command 16H Write Family Code ABxS Command 17H Lock Family CodeDescription ABxS Command 82H SN Read All AAH FFH 6CH ABxS Command 83H Start/Stop Continuous SN Read All 1EH0BH 4BH C5HFCH Response to a successful command follows this form ABxS Command 84H Fill Tag All ABxS Command 85H Read All Termination Packet ABxS Command 86H Write All D2H ABxS Command 87H Read Tag SN All6EH 3CH ABxS Command 88H Tag Search All AAH 8BH ABxS Command 8BH Write Family Code All AAH 8CH ABxS Command 8CH Lock Family Code All AAH 8DH ABxS Command 8DH Start/Stop Continuous Read All Data response from controller Command is formatted as shown below ABxS Command 91H Memory Lock All ABxS Command 94H SN Fill 00H 01H SN byte ABxS Command 95H SN Read ABHF3H ABxS Command 96H SN Write A4H 0EH ABxS Command 10H Set OutputRemarks LSB Bit Output D Output C Output B Output a 0CH Remarks LSB Bit Input D Input C Input B Input a ABxS Command 11H Input Status Checksum Field ContentsABx Fast Protocol Packet Size ABx Fast Multi-tag Command Structure ABx Fast Single Tag Command Structure Header 0202H Command Size ABxF Command 04H Fill Tag AEH ABxF Command 05H ReadCommand from Host Field Content Response from Controller Field Content E7H ABxF Command 06H Write ABxF Command 07H Read Tag Serial Number EEHF8H ABxF Command 08H Tag Search F2HA3H ABxF Command 0DH Start/Stop Continuous Read 1DHF6H ABxF Command 14H Get Memory Status E1HF1H ABxF Command 16H Write Family Code E5HE8H ABxF Command 82H Read Data and SN All ABxF Command 17H Lock Family Code A6H 101 6FH Command from Host Response from Controller Field Content 103 ABxF Command 83H Start/Stop Continuous SN Read All 7BH 6AH 105 106 ABxF Command 84H Fill All 107 ABxF Command 85H Block Read All C8H EBH 109 ABxF Command 86H Block Write All 110 ABxF Command 87H Read Tag SN All F4H 9BH ETX ABxF Command 88H Tag Search All 113 ABxF Command 8DH Stop/Start Continuous Read All 114 ABxF Command 91H Memory Lock All 115 ABxF Command 8BH Write Family Code All F7H ABxF Command 8CH Lock Family Code All ABxF Command 94H SN Fill Response form Controller Field Content117 9DH B0H 119 ABxF Command 95H SN Block Read 120 121 ABxF Command 96H SN Block Write 4DH Output D Output C Output B Output a Byte ABxF Command 10H Set Output123 Output LSB Bit Status 124 ABxF Command 11H Input Status 125 EDHEAH ABx Ascii Protocol Response Structure ABx Ascii Protocol Command StructureCommand Packet Structure ABx Ascii Protocol Command/Response Size Example Ascii Command, Fill Tag127 Command from Host Field Ascii Hex Ascii String Value STXResponse from Controller Field Ascii Hex Ascii String Value Error Code Description ABx Error CodesMulti-tag Error Codes ABx Standard Error Codes Field Number of Ascii Contents Characters ABx Fast Error CodesABx Ascii Error Codes Field Bytes Contents 131 Multi-tag Command Error Code Environmental Mechanical SpecificationsElectrical Communication Tags AccessoriesAvailable Models Options Decimal Hex Character 134 DEL 135