Related Manuals for Feig Electronic OBID i-scan ISC.LR200-A/B
Summary of Contents for Feig Electronic OBID i-scan ISC.LR200-A/B
- Page 1 APPLICATION-NOTE ® OBID i-scan ID ISC.LR200-A/B ID ISC.LRM200-A/B Synchronizing RFID Long Range Readers using the Digital In-/Outputs final public 2003-12-03 N11200-0e-ID-B.doc...
- Page 2 ELECTRONIC GmbH does not give any guarantee promise for perfect function in cross environments. FEIG ELECTRONIC GmbH assumes no responsibility for the use of any information contained in this manual 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.
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Page 3: Table Of Contents
5.4. Requesting data from the reader................... 22 5.5. Setting up and running a test and demo program ............23 Appendix A: Helpful tools for constructing and testing the antennas Recommended equipment and possible sources: .............. 26 FEIG ELECTRONIC GmbH Page 3 of 27 N11200-0e-ID-B.doc... -
Page 4: Synchronizing Readers, Applications
In summary, planning for RFID systems should always allow for a minimum separation between the antennas. See section 4.1. Minimum separations between two RFID systems If synchronizing the systems is not possible, interference can be prevented by proper shielding. FEIG ELECTRONIC GmbH Page 4 of 27 N11200-0e-ID-B.doc... -
Page 5: Synchronizing Rfid Long Range Readers Using The Digital In-/Outputs
The latter passes the signal to the next reader after finishing its read cycle. The last reader then passes the signal back to the Master. FEIG ELECTRONIC GmbH Page 5 of 27 N11200-0e-ID-B.doc... -
Page 6: Design Notes
When the distances between antennas cannot be greater than 2 m, an additional shield must be installed between them. See section: 4. Possible disturbances caused by mutual interference of the RFID systems. FEIG ELECTRONIC GmbH Page 6 of 27 N11200-0e-ID-B.doc... -
Page 7: Configuring The Reader Parameters For Synchronizing
System Manual for the ID ISC.LR200 Reader. The calculated Transponder Response Time taking into account the above conditions must be set in all readers (configuration block CFG2 Byte6+7). FEIG ELECTRONIC GmbH Page 7 of 27 N11200-0e-ID-B.doc... - Page 8 RFID complex which is set as the Timeout time in the reader (CFG11: Buffered Read Mode - Synchronisation-TIMEOUT). Synchronization-Timeout = (TRT + 20 ms)* number of synchronized readers. The calculated synchronization timeout is always rounded up to the next ten milliseconds. FEIG ELECTRONIC GmbH Page 8 of 27 N11200-0e-ID-B.doc...
- Page 9 The processing time or cycle time of the RFID complex and the Synchronization-Timeout to set would therefore be 3 x (110 ms + 20 ms) = 330 ms ! Summary: Set a time of 330 ms in configuration block CFG8. FEIG ELECTRONIC GmbH Page 9 of 27 N11200-0e-ID-B.doc...
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Page 10: Determining The Maximum Speed Of The Transponder In The Antenna
Near a single loop antenna and with the transponder oriented parallel to the antenna conductor, the read zone length of the antenna corresponds to the spacing of the antenna conductors in the loop. For an ID ISC.ANT800/600 antenna mounted horizontally, this is approx. 0.80 m. FEIG ELECTRONIC GmbH Page 10 of 27 N11200-0e-ID-B.doc... - Page 11 Fig. 2: Read zone length of the ID ISC.ANT800/600 antenna, transponder parallel to antenna = 0.8 m = 0.33 s (from Example 1) The maximum permissible traverse velocity is thus: = 0.8 m / 0.33 s = 2.42 m/s (8.7 km/h) B Max FEIG ELECTRONIC GmbH Page 11 of 27 N11200-0e-ID-B.doc...
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Page 12: Required Components
• Service software ISOStart Version 6.10 or higher on a PC running under Windows. The ISCStart software can be found on the OBID ® i-scan CD from FEIG ELECTRONIC GmbH. • Service software BRMDemo Version 1.07 on a PC running under Windows. The BRMDemo software can be found on the OBID ®... -
Page 13: Possible Disturbances Caused By Mutual Interference Of The Rfid Systems
The physical configuration, wiring, connection to the host and the settings in the reader are all identical except for the setting in configuration block CFG11 Byte 7. Here the “RF switched off” bit is not set. FEIG ELECTRONIC GmbH Page 13 of 27 N11200-0e-ID-B.doc... -
Page 14: Minimum Separations Between Two Rfid Systems
Synchronizing of the HF field Cascaded, RF 2.8 m switched off, Master/Slave Synchronizing of the HF field, Cascaded, RF 1.30 m shield between the systems switched off, Master/Slave RW : Read range for the antenna FEIG ELECTRONIC GmbH Page 14 of 27 N11200-0e-ID-B.doc... - Page 15 2 x ID ISC.ANT800/600-A The shield should be installed in the middle between the two systems/antenna assemblies Fig. 4: Position and size of the shield. Configuration: Two gates with ID ISC.ANT1400/700 antenna FEIG ELECTRONIC GmbH Page 15 of 27 N11200-0e-ID-B.doc...
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Page 16: System Structure
Jumpers J400 and J401. The cable length should not exceed 500 m. For longer cable runs (100 m or greater), the bus terminal must also be set using Jumper J403 on the last reader on the bus. FEIG ELECTRONIC GmbH Page 16 of 27 N11200-0e-ID-B.doc... -
Page 17: Wiring The Digital In- And Outputs
To avoid noise on the data lines, the resistors should be installed as close to Terminal X7 on the reader as possible. The data line should be a shielded, twisted-pair cable. Example: LiYCY (TP) 2x2x1.0 mm FEIG ELECTRONIC GmbH Page 17 of 27 N11200-0e-ID-B.doc... - Page 18 Table 2 Resistor values Voltage Resistor value 5 to 10 none 11 to 15 270 Ω x 0.25 W 16 to 20 560 Ω x 0.25 W 21 to 24 820 Ω x 0.25W FEIG ELECTRONIC GmbH Page 18 of 27 N11200-0e-ID-B.doc...
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Page 19: Configuring The Readers For Synchronizing
Save new parameters in the reader by clicking on the Write button. The PC attempts to open the connection to the reader using the new address and various baud rates. FEIG ELECTRONIC GmbH Page 19 of 27 N11200-0e-ID-B.doc... - Page 20 Buffered Read Mode. (also set Anticollision Select Mode) Verify that the EEPROM is selected as the destination memory. Save the settings by clicking on the Write button. Select CFG11: Buffered Read Mode. FEIG ELECTRONIC GmbH Page 20 of 27 N11200-0e-ID-B.doc...
- Page 21 (see: 4.1 Minimum separations between two RFID systems). Save the setting in the reader by clicking on the Write button. Repeat steps 1-8 for each additional reader. FEIG ELECTRONIC GmbH Page 21 of 27 N11200-0e-ID-B.doc...
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Page 22: Requesting Data From The Reader
16 01 21 00 22 01 01 02 55 55 55 55 55 55 55 55 00 03 05 EB ED 55 Clear Buffer 05 FF 32 DF 06 01 32 00 75 97 Cmd OK (Status 0x00) FEIG ELECTRONIC GmbH Page 22 of 27 N11200-0e-ID-B.doc... -
Page 23: Setting Up And Running A Test And Demo Program
Depending on the Valid Time set in the reader, the transponder will be displayed at the set interval. Attach the two measuring loops in one antenna each of the first See Fig. 8: two readers. FEIG ELECTRONIC GmbH Page 23 of 27 N11200-0e-ID-B.doc... - Page 24 Parameters configured in the Synchronization field. See 5.3. Wiring is described in these sections: • 5.1. • 5.2. Oscilloscope Set the oscilloscope as follows: • TimeBase: 50 ms/DIV • Amplitude: Channels 1+2: 2V/DIV • Trigger: Automatic FEIG ELECTRONIC GmbH Page 24 of 27 N11200-0e-ID-B.doc...
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Page 25: Appendix A: Helpful Tools For Constructing And Testing The Antennas
Laptop or personal computer (PC) running under Microsoft Windows 95, 98, ME, 2000, XP. Service software ISCStart (V4.02 or higher). This software can be found on the OBID ® i-scan • CD-ROM supplied by FEIG ELECTRONIC GmbH.. • SWR and Power Meter including SMA connectors (female) or appropriate adapters. -
Page 26: Recommended Equipment And Possible Sources
• Bürklin OHG, http://www.buerklin.com • Conrad.com AG, http://www.conrad.de • Farnell Electronic Components GmbH, 82041 Oberhaching, http://www.farnell.com 3. Amber / Tuning screwdrivers with plastic blade Blade size: 2,4x0,5mm Vendors: • Bürklin Bestellnummer 06 L 8364 FEIG ELECTRONIC GmbH Page 26 of 27 N11200-0e-ID-B.doc... - Page 27 6. Power Supply for the reader modul ID ISC.LRM200 230V/24V or 110/24V 1. ID ISC.24VDC-A Power Supply Unit 24V. article number: 1753.000.00 Vendor: FEIG ELECTRONIC GmbH 2. DRP-60-I Vendor: LAMDA Electronics GmbH Josef-Hund-Str.1 D-77855 Achern Tel.:+49 (0) 7841 50 00 3.