Feig Electronic ID ISC.LRU3000 User manual

MANUAL
final – public (B)
2012-11-07 – H90202-7e-ID-B.docx
ID ISC.LRU3000 / ID ISC.LRU3500
UHF Long Range Reader
Firmware-Versions
RFC: ≥02.08.00
ACC: ≥02.06.00

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Note
Copyright 2012 by
FEIG ELECTRONIC GmbH
Lange Strasse 4
D-35781 Weilburg
Tel.: [phone]
http://www.feig.de
With the edition of this document, all previous editions become void. Indications made in this manual may be
changed without previous notice.
Copying of this document, and giving it to others and the use or communication of the contents thereof are
forbidden without express authority. Offenders are liable to the payment of damages. All rights are reserved
in the event of the grant of a patent or the registration of a utility model or design.
Composition of the information in this document has been done to the best of our knowledge. FEIG
ELECTRONIC GmbH does not guarantee the correctness and completeness of the details given in this
manual and may not be held liable for damages ensuing from incorrect or incomplete information. Since,
despite all our efforts, errors may not be completely avoided, we are always grateful for your useful tips.
The instructions given in this manual are based on advantageous boundary conditions. FEIG ELECTRONIC
GmbH does not give any guarantee promise for perfect function in cross environments and does not give
any guaranty for the functionality of the complete system which incorporates the subject of this document.
FEIG ELECTRONIC call explicit attention that devices which are subject of this document are not designed
with components and testing methods for a level of reliability suitable for use in or in connection with surgical
implants or as critical components in any life support systems whose failure to perform can reasonably be
expected to cause significant injury to a human. To avoid damage, injury, or death, the user or application
designer must take reasonably prudent steps to protect against system failures.
Use Exclusion in Transportation Market: Devices which are subject of this document may NOT be sold,
used, leased, offer for sale, or otherwise transferred, exported, and imported by anyone in the Transportation
Market. “Transportation Market” means (i) Electronic Toll and Traffic Management (ETTM), (ii) Public Sector
Vehicle Registration, Inspection and Licensing Programs, (iii) Railroad Locomotive and Wagon tracking, (iv)
airport based ground transportation management systems (GTMS) and taxi dispatch, (v) revenue based
parking, and (vi) vehicle initiated mobile payment applications, where the RFID sticker/tag is initially attached
to the vehicle but not incorporated at the point of vehicle manufacture.
FEIG ELECTRONIC GmbH assumes no responsibility for the use of any information contained in this docu-
ment and makes no representation that they free of patent infringement. FEIG ELECTRONIC GmbH does
not convey any license under its patent rights nor the rights of others.
OBID®and OBID i-scan®are registered trademarks of FEIG ELECTRONIC GmbH.

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General information's regarding this document
•The sign "" indicates extensions or changes of this manual compared with the former issue.
•If bits within one byte are filled with "-", these bit spaces are reserved for future extensions or
for internal testing- and manufacturing-functions. These bit spaces must not be changed, as this
may cause faulty operation of the reader.
•The following figure formats are used:
0...9: for decimal figures
0x00...0xFF: for hexadecimal figures,
b0...1 for binary figures.
•The hexadecimal value in brackets "[ ]" marks a control byte (command).

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Contents
1. Safety Instructions / Warning - Read before start-up ! 9
2. Revision History of Document 10
3. Abbreviations 11
4. Introduction 12
4.1. The OBID i-scan®UHF Long Range Readers ID ISC.LRU3000 / LRU3500 Reader ..... 12
5. Data Transmission between OBID®i-scan ID ISC.LRU3000 / LRU3500 and Host 13
5.1. Configuration Commands and Control Commands......................................................13
5.2. Configuration Commands and Control Commands......................................................14
5.3. Buffered Read Mode........................................................................................................15
5.4. Notification Mode ............................................................................................................16
6. Interface 18
6.1. Characteristics of TCP/IP protocol.................................................................................18
6.2. Serial Data Format and Protocol Frames.......................................................................18
6.3. CRC16 Calculation Algorithm.........................................................................................21
7. Configuration Parameters 22
7.1. CFG0: Passwords............................................................................................................24
7.2. CFG1: Interface and Mode ..............................................................................................26
7.2.1. Magnetic Strip Emulation ...........................................................................................32
7.2.2. Wiegand Emulation....................................................................................................33
7.3. CFG2: Inputs / Outputs ...................................................................................................35
7.3.1. Dedicated Input / Output Functions............................................................................37
7.4. CFG3: RF-Interface..........................................................................................................38

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7.5. CFG4: Transponder Parameters.....................................................................................45
7.6. CFG5: Anticollision .........................................................................................................47
7.7. CFG6 .. 8: Reserved.........................................................................................................49
7.8. CFG9: Input / Output II (Assignment – output to antenna read event).........................50
7.9. CFG10: Trigger ................................................................................................................52
7.10. CFG11: Read Mode – Read Data..................................................................................55
7.11. CFG12: Read Mode - Filter............................................................................................61
7.12. CFG13 Scan Mode.........................................................................................................64
7.13. CFG14: Reserved...........................................................................................................67
7.14. CFG15: Antenna Multiplexing I....................................................................................68
7.15. CFG16: Persistence Reset............................................................................................70
7.16. CFG17 .. 19: Reserved...................................................................................................71
7.17. CFG20: RF-Parameter ...................................................................................................72
7.18. CFG22 .. 27: Selection mask for EPC Gen 2 ...............................................................74
7.19. CFG28 .. 39: Reserved...................................................................................................79
7.20. CFG63: Customer Parameter........................................................................................80
7.21. CFG66: LAN Settings, Part 1.........................................................................................81
7.22. CFG67: LAN Settings, Part 2.........................................................................................83
7.23. CFG68: LAN Settings, Part 3.........................................................................................84
7.24. CFG69 : LAN Settings, Part 4........................................................................................85
7.25. CFG70: WLAN Settings, Part 1 .....................................................................................87
7.26. CFG71: WLAN Settings, Part 2 .....................................................................................89
7.27. CFG72: WLAN Settings, Part 3 .....................................................................................90
7.28. CFG73 : WLAN Settings, Part 4 ....................................................................................91
7.29. CFG74: WLAN Security Settings, Part 1 ......................................................................93

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7.30. CFG75: WLAN Security Settings, Part 2 ......................................................................95
7.31. CFG76: WLAN Security Settings, Part 3 ......................................................................96
7.32. CFG77: WLAN Security Settings, Part 3 ......................................................................97
7.33. CFG78: WLAN Security Settings, Part 3 ......................................................................98
7.34. CFG79: WLAN Security Settings, Part 4 ......................................................................99
7.35. CFG80: WLAN Security Settings, Part 4 ....................................................................100
7.36. CFG81: WLAN Security Settings, Part 4 ....................................................................101
7.37. CFG82: Notification Channel, Part 1 ..........................................................................102
7.38. CFG83: Notification Channel, Part 2 ..........................................................................105
7.39. CFG84: Network Time Protocol..................................................................................107
7.40. CFG85: Linux System Tools.......................................................................................109
8. Protocols for Reader Configuration 111
8.1. [0x87] Set System Time and Date.................................................................................111
8.2. [0x88] Get System Time and Date ................................................................................112
8.3. [0x8A] Read Configuration...........................................................................................113
8.4. [0x8B] Write Configuration ..........................................................................................116
8.5. [0x8C] Reset Configuration..........................................................................................118
9. Protocols for Reader Control 120
9.1. [0x52] Baud Rate Detection ..........................................................................................120
9.2. [0x63] RF Controller Reset............................................................................................121
9.3. [0x64] System Reset......................................................................................................122
9.4. [0x66] Get Reader Info...................................................................................................123
9.5. [0x69] RF Reset..............................................................................................................134
9.6. [0x6A] RF Output ON/OFF.............................................................................................135
9.7. [0x6E] Reader Diagnostic .............................................................................................137

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9.8. [0x72] Set Output..........................................................................................................143
9.8.1. Set Output Examples...............................................................................................145
9.9. [0x74] Get Input .............................................................................................................146
9.10. [0x76] Check Antennas ..............................................................................................147
9.11. [0xA0] Reader-Login....................................................................................................149
10. Protocols for Host Commands 150
10.1. [0xB0] Host commands...............................................................................................151
10.1.1. [0x01] Inventory ....................................................................................................152
10.1.2. [0x23] Read Multiple Blocks...................................................................................155
10.1.3. [0x24] Write Multiple Blocks...................................................................................159
10.2. [0xB3] Host commands for EPC Transponders ........................................................ 162
10.2.1. [0x18] Kill...............................................................................................................163
10.2.2. [0x22] Lock ............................................................................................................165
10.2.3. [0x25] BlockPermalock...........................................................................................167
10.2.4. [0x26] Read Permalock Status...............................................................................170
10.3. Supported Host commands for Transponders..........................................................173
10.3.1. EPC class 1 Gen 2.................................................................................................173
11. Protocols for Buffered Read Mode and Notification Mode 174
11.1. The Buffered Read Mode Procedure..........................................................................174
11.2. The Notification Mode Procedure...............................................................................175
11.3. Transponder Access in the Buffered Read Mode and Notification Mode................ 176
11.4. [0x22] Read Buffer......................................................................................................177
11.5. [0x31] Read Data Buffer Info.......................................................................................182
11.6. [0x32] Clear Data Buffer..............................................................................................183
11.7. [0x33] Initialize Buffer..................................................................................................184
11.8. [0x34] Force Notify Trigger.........................................................................................185

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ANNEX 186
ANNEX A: Codes of Transponder Types............................................................................186
ANNEX B: Codes of Identifier Data Bytes (IDDT)...............................................................187
ANNEX C: Index of Status Bytes.........................................................................................188
ANNEX D: Discontinued Protocols for Reader Configuration...........................................191
ANNEX D1: [0x80] Read Configuration..............................................................................191
ANNEX D2: [0x81] Write Configuration..............................................................................192
ANNEX D3: [0x83] Set Default Configuration.....................................................................193

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1. Safety Instructions / Warning - Read before start-up !
•The device may only be used for the intended purpose designed by for the manufacturer.
•The operation manual should be conveniently kept available at all times for each user.
•Unauthorized changes and the use of spare parts and additional devices which have not been
sold or recommended by the manufacturer may cause fire, electric shocks or injuries. Such
unauthorized measures shall exclude any liability by the manufacturer.
•The liability-prescriptions of the manufacturer in the issue valid at the time of purchase are valid
for the device. The manufacturer shall not be held legally responsible for inaccuracies, errors,
or omissions in the manual or automatically set parameters for a device or for an incorrect
application of a device.
•Repairs may only be executed by the manufacturer.
•Installation, operation, and maintenance procedures should only be carried out by qualified
personnel.
•Use of the device and its installation must be in accordance with national legal requirements
and local electrical codes .
•When working on devices the valid safety regulations must be observed.
•Special advice for carriers of cardiac pacemakers:
Although this device doesn't exceed the valid limits for electromagnetic fields you should keep
a minimum distance of 25 cm between the device and your cardiac pacemaker and not stay in
an immediate proximity of the device respective the antenna for some time.

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2. Revision History of Document
Revision Date Page Description
1e 06.09.10 Initial revision
2e 28.07.11
26, 32, 33 Data Clock Interface as Scan Mode Interface
38 CFG3: RF-Interface, New Parameter “DC-Power”
45 CFG4: Transponder Parameter, New Parameter “TID-Length”
109 CFG85: Linux System Tools
113 [0x8A] Read Configuration
116 [0x8B] Write Configuration
118 [0x8C] Reset Configuration
191 Annex D: Discontinued Protocols for Reader Configuration
3e 26.08.11 55 CFG11 Read Mode – Read Data, New Parameter, “Read_Complete_Bank”
155 [0xB0][0x23] Read Multiple Blocks, New Mode, “Read_Complete_Bank”, More-Data
4e 28.10.11
32, 33 CFG1 Interface & Mode – Corrections to Data Clock Interface
38 CFG3 RF-Interface – Definition of new Regions for automatic frequency setup
47 CFG5 Anticollision – Elimination of Q - Value
68 CFG15 Antenna Multiplexing – Elimination of Mux Valid Time
6e 11.06.12 167 [0x25] Block Permalock
170 [0x26] Read Permalock Status
7e 02.11.12
35 CFG2: Namespaces added
38 CFG3: FCC Frequencies corrected
45 CFG4: New Parameter “Write-Option”
55 CFG11: Read Complete Bank in dependency of DB-ADR
137 [0x6E] Reader Diagnostic, new Mode 0x21
155 [0x23] Read Multiple Blocks, Read Complete Bank in dependency of DB-ADR
159 [0x24] Write Multiple Blocks, Bytes added in case of error code
163 [0x18] Kill, Recommissioning Bits added

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3. Abbreviations
ADR Address
ASK Amplitude Shift Keying
CB Config Block
CFG Configuration Parameter Block
CRC Cyclic Redundancy Check
DB Data Block
DIP Dual Inline Plastic
DRM Dense Reader Mode
FIFO First in First out
frq Frequency
FSK Frequency Shift Keying
h Hour
Hz Hertz
ID Identification
IDD Identifier Data
IN Input
LEN Length
LOC Location
LSB Least Significant Byte
min Minutes
ms Milliseconds
MSB Most Significant Byte
N Number
OUT Output
R/W Read / Write Access
RD Read
REL Relay
RF Radio Frequency
RSSI Received Signal Strength Indicator
RTC Real Time Clock
TAB Table
TR Transponder
TS Timeslot
UID Unique Identifier (read only Serial Number)
WO Write Only Access
WR Write

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4. Introduction
4.1. The OBID i-scan®UHF Long Range Readers ID ISC.LRU3000 / LRU3500 Reader
The ID ISC.LRU3000 and the ID ISC.LRU3500 are the new top of the line Long Range Reader
versions of the OBID i-scanUHF product line. They are the most powerful fixed readers in the
OBID i-scanUHF product family.
The LRU3000 and the LRU3500 are the successors of the LRU2000 and have the following key
features:
•New Low Noise Transmitter Architecture
•High sensitivity receiver increases the tag detection range so that transponders can be read
over the entire power up, field strength area.
•Powerful Tag response decoding engine to decode FM0 and Miller coded return link signals
for e.g. Dense Reader Mode or ISO 18000-6-B (optional).
•Reader protection against various fault conditions as e.g. antenna shortcut, antenna mis-
matching and electrostatic discharge.
•Tough, solid aluminium die case housing for rough environments.
•Quick installation due to easy access to the interfaces and antenna ports.
•Indication of read events via 4 separate reading point LEDs.
•Full support for the UHF multiplexer ID ISC.ANT.UMUX results in a possible antenna sys-
tem with a maximum number of 2048 antennas. Control commands are sent via the
antenna cable.
•Possibility to supply the Reader via Power over Ethernet (PoE) (only with LRU3500)
In addition to the fact that the ID ISC.LRU3000 / 3500 Reader series is having the largest read
range, the platform provides the most extensive configuration possibilities and reader command
set. The base set of commands and features are compatible with the commands used throughout
the OBID i-scanproduct line. The configuration possibilities of the ID ISC.LRU3000 and ID
ISC.LRU3500 make it easy to adapt the readers to a wide range of applications by software and
hardware configurations.
Each reader is controlled by an Application Connectivity Controller (ACC). The ACC uses an ARM
processor running a Linux operating system. The ACC transforms the reader into a powerful and
intelligent device, capable of running application software directly on the reader platform and capa-
ble of connecting and controlling other real world devices. The reader has five hardware interface
ports: Ethernet, RS232, RS485, USB, and a USB-Host port to support a WLAN dongle or memory
stick. All ports are under control of the ACC. Furthermore, the reader has digital I/O’s for direct
control of various trigger possibilities and various outputs for a direct control of several indicators.

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5. Data Transmission between OBID®i-scan ID ISC.LRU3000 / LRU3500 and Host
Five different ways of data transmission between OBID®i-scan Readers and host (terminal, PC)
are possible. The Host Commands, Buffered Read Mode, Scan Mode and Notification Mode
are used for the data exchange between Transponder and host, whereas the Configuration
Commands and the Reader Control Commands serves for adapting the Reader parameters to
the individual range of applications. The following chart shows which method of data transmission
is supported by which interface:
Interface
RS232 RS485 Data
Clock USB LAN WLAN
Configuration Commands √√- √√√
Reader Control Commands √√- √√√
Host Commands √√- √√√
Buffered Read Mode √√- √√√
Scan Mode √√√- - -
Notification Mode - - - - √√
5.1. Configuration Commands and Control Commands
This method of data transmission is used for Reader configuration and the diagnosis via the differ-
ent Hardware Interfaces of the Reader.
The Reader-configuration parameters will be stored in the Reader memory. To store the current
configuration during a power down of the Reader the Reader-Configuration has to be stored in the
EEPROM. After power up the Reader reads the configuration out of the EEPROM.
The Reader control is immediately processed and the response from the Reader contains status or
data information of the control command.
Host (Terminal / PC / ....) Reader
parameter- / control command →parameter received and stored / control
command processed
yes no
←status /
data error status
←

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5.2. Configuration Commands and Control Commands
The Host Commands provide the exchange of data between a host and Transponders via the
Reader as long as the Transponder remains in the detection range of the Reader.
NOTE:
During the writing of data on a Transponder, it must be ensured that the Transponder is
located within the detection range of the Reader during the entire process. If the Trans-
ponder is removed from detection range of the Reader during a writing process, this will
cause a loss of data.
The Reader to Transponder addressing mode:
Addressed mode:
Before reading or writing data in addressed mode, the UID of the Transponder has to be known.
This is executed by sending the protocol 10.1.1. [0x01] Inventory. If a Transponder is located with-
in the detection range of the Reader at that time, it answers with its UID. For all following read- /
write orders the Transponder must be addressed with its correct UID. The following chart will show
the necessary steps for the communication with a Transponder in addressed mode:
Host (Terminal / PC / ....) Reader
Inventory
to get the UID
→Transponder in antenna field?
Yes No
←status /
number of Trans-
ponders / UID
status =
no Transponder
←
read data from Transponder with UID →
Transponder with
correct UID in antenna field?
Yes No
←status /
Transponder read
data
status =
no Transponder
in Reader field
←
write data to Transponder with UID →
Transponder with
correct UID in antenna field?
Yes No
←OK status
status =
no Transponder
in Reader field
←

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5.3. Buffered Read Mode
The Buffered Read Mode is a high level operating mode to detect Transponders which are within
the detection range of the Reader. This operation mode processes all Transponder read data and
filter operations to make the user interface transparent to Transponder data and to minimize data
transfers between Reader and host. There are only three commands used to control Buffered
Read Mode.
In this operating mode the Reader automatically selects Transponders which are within the detec-
tion range of the Reader and reads their requested data. The read Transponder data is stored in a
‘FIFO’ organized data buffer. Up to 10000 datasets can be stored into the buffer. In case of power
down the buffer will be initialized and all datasets got lost.
The sampled Transponder data can be read with the 11.4. [0x22] Read Buffer command. This
command always reads the first available data sets from the data buffer. However data already
read have to be deleted with the 11.6. [0x32] Clear Data Buffer command before the next data sets
in the data buffer can be reached with the read command.
If the Buffered Read Mode is enabled in the 7.2. CFG1: Interface and Mode configuration block the
Reader immediately starts sampling Transponder data after power up. The Buffered Read Mode
can be reinitialized with the 11.7. [0x33] Initialize Buffer command.
If turned to Buffered Read Mode the Reader answers every valid message with data- or status-
protocol. The answer includes the control byte which has been received by the Reader.
Host (Terminal / PC / ....) Reader
read data →Transponder data in data buffer?
Yes No
←status /
data protocol status = no valid data
←
clear data →Transponder data read?
Yes No
←OK status status = no valid
data
←
NOTE:
Only read operations are available with the Buffered Read Mode.

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5.4. Notification Mode
The Notification Mode is an extended option of the Buffered Read Mode: queued Transponder
data and optionally Input / Status events are notified automatically and asynchronously to a host
with the 11.4. [0x22] Read Buffer response protocol. The destination address and the notification
conditions can be set in 7.38. CFG83: Notification Channel, Part 2 configuration block. In general,
the notification channel can be used simultaneously with the host interface.
In difference to the Buffered Read Mode procedure, a notification is normally not acknowledged by
the host. Thus, the deletion of the transferred data with the 11.6. [0x32] Clear Data Buffer com-
mand is not necessary. As an option, the acknowledgement can be enabled to synchronize the
notifications with the host to prevent notification overflow in the host application.
The notification message format depends on trigger settings in 7.9. CFG10: Trigger and settings
for the read mode in 7.10. CFG11: Read Mode – Read Data and 7.11. CFG12: Read Mode - Filter
as well as settings for the notification trigger in 7.37. CFG82: Notification Channel, Part 1. The fol-
lowing table lists the message formats:
Notification Trigger: continuous or time-triggered
Input/Status Event Data Event
Read Trigger disabled Input/Status and Data Events are notified together in one or multiple messages.
The message format depends on settings in TR-DATA of CFG11.
Read Trigger enabled
Notification separately and immediately,
if in:
CFG11: IN flag in TR-DATA2 is set
and
CFG12: flag is set for input and/or sta-
tus to be observed
NOTE: One notification can contain
more than one input/status event, if
multiple events occur at the same time.
Notification shortly after notification of
input/status event.
The message format depends on set-
tings in TR-DATA of CFG11.
Notification Trigger: host-triggered
Input/Status Event Data Event
Independent of Read Trigger Input/Status and Data Events are notified together in one message. The notifica-
tion is activated by command [0x34] Force Notify Trigger.
The message format depends on settings in TR-DATA of CFG11.

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An additional option of the Notification Mode is the Keepalive message, which can be sent periodi-
cally to the host. The Keepalive message transports valuable information about the reader hard-
ware and antenna tuning status. Keepalive messages are always never acknowledged by the host.
The Keepalive message should not be mistaken with the keepalive option (s. CFG69 ff.) of a
LAN/WLAN connection initiated by a host.

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6. Interface
The ID ISC.LRU3000-A and ID ISC.LRU3500-A have 4 interface ports. The protocol frame of these
ports can be different. On the asynchronous serial interface the whole protocol frame is described
in 6.2. Serial Data Format and Protocol Frames. The TCP/IP protocol frame is described below.
6.1. Characteristics of TCP/IP protocol
If the Reader uses the LAN or WLAN interface the data is packaged in TCP/IP protocol frames.
This means the whole data format and protocol frame which is described in 6.2. Serial Data Format
and Protocol Frames is packaged as the data of TCP/IP protocol frames.
If you use the TCP/IP protocol please be aware that the data packaged in the TCP/IP frame is
transferred with Protocol frame: Advanced Protocol-Length as describe below.
LAN and WLAN sockets on the reader side use the keepalive option for detecting interrupted
connections. The default parameters for keepalive are initialized as listed in the table:
Parameter Value Note
idle time 5 seconds The reader sends every 5 seconds a keepalive probe which has to be
acknowledged by the client
repeat count 2 If a keepalive probe is not acknowledged, the reader repeats the
probe only two times with an interval of 5 seconds.
interval 5 second
If the 15 second time span is expired and no keepalive probe response is obtained from the client
the connection is closed and the client application must enable a new connection. The keepalive
parameters can be modified in the configuration pages for LAN and WLAN. This keepalive option
should not be mistake with the Keepalive message for notification mode.
6.2. Serial Data Format and Protocol Frames
The ID ISC.LRU3000-A and ID ISC.LRU3500-A can be configured by different interfaces and data
may be written on Transponders or read from Transponders. The communication between Reader
and connected host (terminal, PC, etc.) is executed by means of fixed protocols. The used protocol
is intended for data bus use and is equipped with a bus address.
During data transfer via the asynchronous interface the Reader supplies the required data or a
status byte. The reply contains the transmitted control byte.
There is no reply from the Reader if there is a protocol frame failure.

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Protocol frame: Standard Protocol-Length (up to 255 Byte)
Host →Reader
1 2 3 4...n-2 n-1 n
LENGTH =
n COM-ADR CONTROL- BYTE (DATA) LSB CRC16 MSB CRC16
Host ←Reader
1 2 3 4 (5...n-2) n-1 n
LENGTH
(n) COM-ADR CONTROL-
BYTE STATUS1(DATA) LSB
CRC16 MSB CRC16
Protocol frame: Advanced Protocol-Length
Reader ←Host
1 2 3 4 5 (6...n-2)
STX
(0x02) MSB ALENGTH LSB ALENGTH COM-ADR CONTROL- BYTE (DATA) 
n-1 n
LSB
CRC16 MSB CRC16
Host ←Reader
1 2 3 4 5 6 (7...n-2)
STX
(0x02) MSB ALENGTH LSB ALENGTH COM-ADR CONTROL- BYTE STATUS2(DATA) 
n-1 n
LSB
CRC16 MSB CRC16
The Reader supports both Protocol frames, standard and advanced protocol frame. The Host ap-
plication can choose which protocol frame is used. The Reader will always response with ad-
vanced protocol frame.
1see ANNEX C: Index of Status Bytes
2see ANNEX C: Index of Status Bytes

OBID
i-scan
®
UHF
Manual
ID ISC.LRU3000/3500
FEIG ELECTRONIC GmbH Page 20 of 193 H90202-7e-ID-B.docx
STX: If the responded protocol of the Reader starts with the STX sign (0x02) the proto-
col includes more than 255 Byte. Then the protocol length is defined by the 2
Byte Parameter ALENGTH.
ALENGTH (n = 8...65535):
Number of protocol bytes including STX, ALENGTH and CRC16
LENGTH (n = 6...255): Standard Protocol-Length (up to 255 Byte)
Number of protocol bytes including LENGTH and CRC16.
COM-ADR:
0..254 address of device in bus mode
NOTE:
The Reader can be addressed via COM-ADR 255 at any time!
CONTROL-BYTE:
Defines the command which the Reader should operate.
STATUS:
Includes the status message or protocol data from or to the Reader.
DATA: Is a optional data field with variable length. The number of DATA byte depends
on the command. The data will be sent always as MSB first if the Reader is in the
Host Command Mode.
CRC16: Cyclic redundancy check of the protocol bytes from 1 to n-2, as specified by
CCITT-CRC16
Polynomial: x16 + x12 + x5+ 1 (0x8408)
Start Value: 0xFFFF
Direction: Backward