ABx Ascii Protocol, Command Packet Structure | Escort LRP2000

RFID Communications

6.6 ABx ASCII Protocol

The ABx ASCII Protocol is based on the ABx Fast protocol. It uses the same headers and terminator (already ASCII characters) and converts the hex value of command and data bytes to printable ASCII (two- digit hexadecimal notation). In another words, the hex values given in an ABx Fast command are transmitted as separate ASCII characters. Since it is an ASCII protocol, the Xon/Xoff handshake can be used.

Command Packet Structure

The command protocol is based on the following minimal packet structure. The data field and the checksum may not be present depending on the command type and your checksum setting.

6.6.1 ABx ASCII Protocol Command Structure

	Field	Number of ASCII	Content
	Field	Characters	Content
		Characters
	Header	2	<STX><STX>
			(02H, 02H)

	Command Size	4	Packet length in bytes excluding the header, command size, checksum, and
			terminator bytes

	Command	2	Command Code

	(Data)	Variable	Command data/parameters

	Checksum	2	Optional checksum

	Terminator	1	<ETX>(03H)

Following a successful operation, the controller responds with the response structure shown in 6.6.2 ABx ASCII Protocol Response Structure. The data field and the checksum may not be present depending on the command and your checksum setting. If a checksum is enabled in the Configuration Menu, then it is always present for every command.

6.6.2 ABx ASCII Protocol Response Structure

	Number of
Field	ASCII	Content
	Characters
Header	2	<STX><STX>
		(02H, 02H)

Response Size	4	Packet length in bytes excluding the header, command size, checksum, and
		terminator bytes

Command	2	Command echo

(Data)	Variable	Response data

Checksum	2	Optional checksum

Terminator	1	<ETX> (03H)

LRP2000 Passive Reader/Writer

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Escort LRP2000 ABx Ascii Protocol Command Structure, ABx Ascii Protocol Response Structure, Command Packet Structure

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 RS232 Pinouts, J8 Terminal Block J8 Pin Number Interface J8 Signal Name DB9 Pin DB25 PinData Terminal Blocks 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 J32 J34 Master/Slave ConfigurationSetting Jumper 32 on the Master 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 Baud Rate 1200, 2400 9600, 19200 bps COM2 DefaultsCOM2 Parameters 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 COM2 Parameters Set-Up Operating ParametersSet COM1 Parameters Framing Editing Set Operating ModeOperating Mode Checksum? 0 Disabled 1 Enabled Length Power up in Continuous Read Mode?Delay Between Identical Decodes Start Address Return to Main Menu Restore Factory DefaultsSet RF Communication 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 E0H ABxS Command 07H Read Tag Serial NumberACH ABxS Command 0DH Stop/Start Continuous Read ABxS Command 08H Tag Search ANT Config BlinkCommand Response Field Remarks Behavior Description Response from controller ABxS Command 14H Get Memory StatusField Content Description ABxS Command 16H Write Family CodeABxS Command 17H Lock Family Code ABxS Command 82H SN Read All AAH FFH 6CH 0BH ABxS Command 83H Start/Stop Continuous SN Read All1EH FCH 4BHC5H 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 F3H ABxS Command 95H SN ReadABH 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 F8H ABxF Command 07H Read Tag Serial NumberEEH A3H ABxF Command 08H Tag SearchF2H F6H ABxF Command 0DH Start/Stop Continuous Read1DH F1H ABxF Command 14H Get Memory StatusE1H E8H ABxF Command 16H Write Family CodeE5H 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 117 ABxF Command 94H SN FillResponse form Controller Field Content 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 EAH 125EDH ABx Ascii Protocol Response Structure ABx Ascii Protocol Command StructureCommand Packet Structure ABx Ascii Protocol 127 Command/Response SizeExample Ascii Command, Fill Tag Response from Controller Field Ascii Hex Ascii String Value Command from Host Field Ascii Hex Ascii String ValueSTX 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