Compact Reader ARE i2 Installation Guide for Systems with a Serial Interface USB
1 INTRODUCTION ............................................................................................................ 4 2 SYSTEM OVERVIEW .................................................................................................... 4 3 INSTALLATION ............................................................................................................. 5 3.1 Mounting of the housing .......................................................................................................
4.3.2 4.3.3 4.3.4 4.3.5 5 VS – Show parameter....................................................................................................................... 19 VSAVE – Save parameter ................................................................................................................ 20 RST – Warm start ............................................................................................................................ 20 INIT – Warmstart with default parameters .................
1 Introduction This document will describe the components of the Compact Reader System ARE i2 / USB and the procedure how to do the first set up of the reader. The main features of the reader are listed below: • the antenna is placed inside of the housing • there are algorithm available to read nearly all 125 kHz-transponders on market • integrated USB Interface with tunable baud rate are up to 19200 Bit/s • the allowed supply voltage is 9 to 30V DC • low power consumption of reader < 1.
9....30V DC transponder reader with integrated antenna USB ARE i2 Figure 1: Concept of the reading system 3 Installation To get the specified reading performance it is necessary to do the installation carefully step by step as it is described in the following Chapters. All the work must be done by well educated people. 3.1 Mounting of the housing The reader can be mounted to any other mechanic construction.
Attention! The topology of the ground wires must be done in the right way (according state of art). 3.2.1 Connecting of the plug Attention! Be sure that the grounding of the reader is well done (chapter 3.2). Otherwise the electronic may be destroyed by electrostatic discharge (ESD). 1 B A 2 Figure 2: Connecting of the plug Put on the sealing 2 to the SAB Cab (A). Plug in the SAB Cab to the connector at the bottom of the reader device (B).
3.3 Connecting of the power supply cable The reader has to be supplied with 9..30V DC. The maximum output power of the power supply has to be 1.2 Watt. Be sure that you use the right polarity. 3.3.1 Using the pc connection cable ID 1002237 Power supply: brown = + 9 .. 30 Volt white = ground 3.3.2 Using a self assembled connecting cable Using the following SAB cabs you can assemble your own connecting cable.
Attention! The minimum voltage at the readers input mustn’t be lower then 9V. The maximum length of the USB cable is 5m. 3.3.2.1 Assembling of the cable pipe • Breakthrough the prepared areas at the surface of the SAB Cabs. There are two prepared areas seen at the SAB Cab: central and at one side of the cab. • The o-ring (3) has to be assembled proberly to the cable pipe (4) to ensure the protection class IP 65.
• Put all the removed parts ( nut (5), cable fastener (3), pipe (4),) and the cable pipe of the SAB Cab as well (1 to 4) to the cable. 5 4 3 Cable 6 1 7 Figure 4: Mounting for the cable • Remove the outer isolation of the cable at a length of 6 cm . • Remove the isolation of the wires at a length of 6mm and stick a covering hull to the litz wire. • Put the cable to the cable pipe. The length of the cable coming out the SAB Cab must long enough to do all further installation steps in an easy way.
3.3.2.
Visual signal lamps To show the operational state or results there are 5 LED at the side of the housing. BFH ID ARE i2 L1: twinkles, if the processor works.
4 Instruction set / structure of the instruction set 4.1 General The command set described below defines the transfer of data on the serial interface. The commands consist of a command code and optionally of a parameter value. Commands are terminated by the control character (13h). The control character serves as command line terminator.
4.1.2.1 Instruction specific output After entering a valid command without a parameter value, the system answers by sending the parameter value and . Example: Command: GT Output: Transponder number or No Read Command: RST Output: If EC is active the boot message, else 4.1.2.2 Output after changing a parameter After entering a valid command together with a parameter value, the system answers by sending the parameter value and .
Command: MD Output: 1 4.1.3 Blank instuction If a single is input, the reader answers with a single . Example: Command: Output: Please note: If echo mode is active, a single forces the reader to output (echo plus output). 4.1.4 Incorrect instruction / error codes If a command is not entered correctly, the reader sends one of the following error codes: Wrong command: #00 Wrong parameter: #02 Antenna failure: #10 4.
Instructions for the hardware settings 4.1.7 BD - baudrate The command BD enables the change of the baud rate. The settings are effective after the next warm or cold start. Input format: BD parameter Parameter: PARAMETER FUNCTION 0 4800 baud 1 9600 baud 2 19200 baud 3 38400 baud Output (example): 2 4.1.8 EC – echo function The command EC changes of the echo function setting.
4.2 Instructions for the reading settings 4.2.1 GT – single transponder code reading The instruction GT executes one reading and sends back the transponder code of a transponder or the No Read error code (e.g. „FFFFFFFFFF“ or „XXXXXXXXXX“). Input format: GT Output (example): 0420212E5F 4.2.2 CID – Suppression of ID Codes With CID=1 only the first of in succession identical transponder numbers is output on the serial interface.
Example: A, B, C are different transponder codes, N is NoRead error code: Sequence of reading cycles Output sequence after filtering with CN=0 und CID=1 Output sequence after filtering with CN=1 und CID=1 N, N, ......,N, A, A, A, ....A, N,N, ......... N, N, ......,N, A, N, N, ....... A N. N, N, A, A, A, N, A, A, B, A, C, C, C, ....... N. N, N, A, N, B, A, C, ..... A, B, A, C The settings are directly effective.
4.2.4 NID – Failure Protection NID specifies the number of identical transponder numbers, which have to appear for the result “successful reading“within a reading cycle. In the setting NID = 1, two successive readings have to show the same transponder number.
Parameter: PARAMETER FUNCTION 0 limits the reading process duration of exactly one reading cycle 1 limits the reading process duration to maximum 1 times TB 2 limits the reading process duration to maximum 2 times TB ... 255 Output (example): 4.3 limits the reading process duration to maximum 255 times TB 2 Instructions for the memory settings 4.3.1 VER – Reader firmware With the command VER you get the actual reader firmware. Input format: VER Output (example): V_2.
4.3.3 VSAVE – Save parameter All operating parameters temporarily stored are saved permanently using VSAVE. Input format: VSAVE Output: ok 4.3.4 RST – Warm start The command RST causes a warm start of the reader. Input format: RST Output: If EC = 1 you get the startup message, else you get RST system initialization system start with the actual parameters saved in the EEPROM Figure 7: Workflow RST 4.3.
5 Operating Modes of the Reader There are two operational modes defined: • MD 0 - continuous mode • MD 2 - the reading process is triggered by the serial interface In the next capters can you find a detailed functional description. The default mode is MD 0. 5.1 MD 2 - Triggered by an Software Command The master sends the command to read a transponder code. The reader answers with the code or an error code.
TOR exciter processor interface reading cycle reading cycle reading cycle GT NoRead reading process Figure 10: Software triggered reading operation with TOR>0 Please note: The TOR parameter is only active, if the GT-Command is applied. Within the time span defined by the value of TOR no NoRead will be output on the interface! 5.2 MD 0 - Continuous Reading When operating continuously the exciter is switched on permanently. The reading cycles are initiated periodically.
6 Startup and testing the reader • Connect the reader via cable with the USB interface (COM) from your notebook or pc. • Connect the reader with your power supply (9..30V DC). Look after the polarity! • Switch the power supply on. The yellow LED OP of the reader starts to blink. • Start your terminal programme. You have to set the following settings: 8 data bits, 1 start bit und 1 stop bit, no parity check (often called 8N1), baud rate 19200 baud, no flow control(e.g. XOFF/XON).
7 Basic data exchange process The master has to send an software command to start an read or write process of the reader. After doing all the necessary work at the readers site, the result of the reading or writing process or an failure code is sent back to the master. If there is used an read/write transponder, only the serial number of the transponder will be read if the basic read command „Get Tag“ („GT “) is applied.
7.2 Writing WD The memory of the transponder is organised in blocks, containing 32 bits. The data’s of every single block must be changed separately. • Start the reader with the command WD plus parameters ( plus ). The sent parameter consists of the block address and writing data’s (8 ASCII characters). • Wait for the answer • Analyse the received answer: 3 characters plus . ACK Writing process was successful NAK Writing process was not successful.
8 Instructions 8.1 General Instructions To avoid any reduction of the reading distance of the reader, the housing must not be brought next to a metal surface. This could lead to a significant change of the properties of the antenna circuit, which in turn reduces the reading range considerably! To get reliable readings, the distance between reader and transponder must be within the specified reading volume. The reading characteristic in front of the reader is not isotropic.
8.2 Special Instructions for Using a Read / Write System To transfer the data to the transponder or to control the selective read process, all standard transponder types uses a 100%-pulse-gap-modulation technique. The modulation of the magnetic field comming from the transponder and the write pattern done by the base station, shows a lot of similarities. Therefore, read write systems may interfere each other.
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9 FCC Information Federal Communications Commissions (FCC) Statement 15.21 You are cautioned that changes or modifications not expressly approved by the part responsible for compliance could void the user’s authority to operate the equipment. 15.105(b) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
10 Hotline If there are questions or suggestions please call the hotline: Sales und Marketing: +49 (0)731-140088-0 Fax: +49 (0)731-140088-9000 e-mail: sales@aegid.de http://www.aegid.de 11 Revisions 12/19/01 Revision 00: Initial edition 09/09/03 Revision 01: Chapter 8.2 added 12/09/04 Revision 02: Chapter 4.3.6. 09/26/07 Revision 03: Chapter 8.
