RFID System S21 User’s Guide
Lyngsoe Systems 5570 Kennedy Road, Unit B Mississauga, Ontario L4Z 2A9 CANADA Tel: +1 (905) 501-1533 Fax: +1 (905) 501-1538 Lyngsoe RFID System S21 User’s Guide Part Number: 950061 First Edition August 2002 The information in this manual is for reference purposes only and is subject to change without notice. The contents of this manual and the associated Lyngsoe S21 Series hardware are the property of Lyngsoe Systems and are copyrighted©. All rights are reserved by Lyngsoe Systems.
FCC CLASS A Digital Device or Peripheral - Information to the User NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
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Table of Contents: Table of Contents: : Table of Contents: : List of Figures : Preface S21 What This Manual Contains. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii Text Conventions . . . . . . . . . . . . . . . . . . . . . . .
One Exiter per power supply.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Multiple Exiters per power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Assembling Other Models of Exciters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Chapter 4: Power Supply TRM95 Installation and Connection Before you Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents: Appendix A: Specifications Transponder PT21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Reader RD21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Exciter EX21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Power Supply TRM95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Figures 2Figure 1-1:RFID Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2Figure 2-1:Connections and Jumper Settings for the RS232 - PC Communication Line. . . . . . . . . . . . . . . . . . . . .2-2 2Figure 2-2:Connections and Jumper Settings for the RS485 Four-Wire Communication Line . . . . . . . . . . . . . . . . 2-3 2Figure 2-3:Connections and Jumper Settings for the Exciter Communication Line .
-2 List of Figures
What This Manual Contains Preface S21 What This Manual Contains This manual gives procedures for installing and configuring the Reader RD21,the Exciter EX21, and programming the Transponder PT21. It also gives you maintenance and troubleshooting procedures. Summary A summary of the contents of this manual is given below: Chapter 1, Introduction describes the Transponder Identification System and the Postal RFID System. It also gives information on the RFID System S21 configuration principles.
What This Manual Contains Related Manuals Technical Guide RFID System S21 Technical Guide. This Guide describes the RFID System S21. It includes operation principles, block diagrams and electrical schematics for all equipment and assembly parts for the RFID System S21. Reference Guide RFID System S21 Reference Guide. This Guide describes all the commands that control the RFID operating system. Text Conventions Helvetica is used for commands you must type exactly as it appears.
Transponder Identification System Chapter 1 Introduction This chapter describes Transponders and their functions, the purpose of the Postal RFID System and its uses. It also gives information on the RFID System S21 configuration principles.
RFID Specific Terms RFID Specific Terms Transponder Transponders are devices that receive an excitation signal, and respond by transmitting back a message. Transponders that are used in identification systems are sometimes referred to as electronic tags or tags. Excitation Signal The excitation signal is a form of electromagnetic energy and can operate anywhere in the RF spectrum from a low-radio frequency to infra-red light. It can also have a special signature (pattern, coding, etc.
RFID System S21 Configuration Principles By using a RFID system comprising of a population of Transponders and strategically placed Readers and Exciters, you can electronically monitor the path of test letters through the collection and delivery process, particularly at points between Postal administrations and their agents. Each probe letter includes a RFID Transponder bearing a unique identification. The probe letters are posted, sorted, and delivered in the same way as normal letters.
RFID System S21 Configuration Principles Reader Address When a Reader is part of a network, it must have a unique address. The address is set by the IAD parameter. Once the Reader has an address assigned, it will only process commands with the address field matching the Reader’s address. In this way, you can direct commands over the network to a specific Reader. Real Time Clock The Reader RD21 has an on board Real Time Clock. Make sure that the date and time are correctly set.
RFID System S21 Configuration Principles For the software reset, press the RESET button on the Motherboard MBD21 twice, or type the command: :RESET The software reset resets the Micro controller. The hardware reset resets the Micro controller and runs a complete memory test for receiver REC21. Exciter Address When an Exciter EX21 is part of a network, it must have a unique address. You can set the Exciter’s address in a binary format between 0001 and 1110, using the S1 switch on the LFA21 board.
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Before You Begin Chapter 2 Reader RD21 Installation and Connections This chapter explains how to: • • • • Install the Reader Module Assembly into the Reader’s enclosure Connect the serial interfaces and the power supply Set the jumpers for interfaces Connect the external devices to the Reader RD21 (optional) Before You Begin Before installing the Reader: • Read Chapter 4, Setup Guidelines in the RFID System S21 Technical Guide.
Connecting the RS232 Communication Line Connecting the RS232 Communication Line The RS232 data transmission line is used for point-to-point communication with a local PC. This connection can be used during the RFID System S21 configuration or troubleshooting. The RS232 connector and the selection jumper are located on the Motherboard MBD21. The MBD21 is the bottom board of the Reader Module Assembly.
Connecting the RS485 Four-Wire Communication Line Connecting the RS485 Four-Wire Communication Line The four-wire RS485 data-communication line must be used for connecting the Readers to the main system PC. For detailed information regarding the four-wire RS485 interface (full-duplex), see the RFID System S21 Technical Guide. The RS485 connectors and jumper are located on the Motherboard MBD21. The MBD21 is the bottom board of the Reader Module Assembly. Notes 1.
Connecting the Exciter Communication Line Caution Before installing the RFID System, label the 4 wires of the RS485 line as A, B, Z and Y. Keep this naming convention for all connections made on this RS485 communication line. 4. Set the termination load for the RS485 communication line. The ends of a multidrop network line can be easily identified, because only one RS485 cable is connected to that equipment. To connect a 120 ohm terminating load, place the jumper P1 between pins 1-2 of J1(load position).
Connecting the Power Supply CNO COM CNC + 8V DTA PWR + - GND MS I/0 J3 DATA Controller CTL21 S95 S96/S21 P3 RESET J2 Load Load Open J1 J2 Open Open Load 1 Load A B GP Z Y J1 A B GP Z Y P2 1 Open P1 TB2 A1 B1 GP A2 B2 RS485_ CMD Load Open TB4 A1 B1 GP A2 B2 Incoming Cable Caution 1 J1 Load Open J2 S95 S96/S21 POWER J3 Out going Cable RS485_ SGN RS485_ CMD RS485_ SGN Before installing the RFID System, label the two wires of one line of RS-485 as A1 and B1, and the other
Connecting the Power Supply One Reader per power supply. CNO COM CNC + 8V DTA PWR + - GND MS I/0 DATA LED DATA Controller CTL21 Power LED (optional) POWER S95 S96/S21 RESET J3 J2 J1 Load Open Load Open J1 J2 Open Open Load Load A B GP Z Y A B GP Z Y TB2 12 Vac 12 Vac Figure 2-4: One Reader per Power Supply Connection. To connet the power supply to Reader RD21, refer to Figure 2-4 and complete the following steps: 1. Unplug terminal block TB2 from its connector TB1. 2.
Connecting the Power Supply Multiple Readers per power supply. CNO COM CNC + - + 8V DTA PWR OS I/0 DATA Controller CTL21 POWER S95 S21 RESET J3 J2 J1 J1 12Vac Load Open Load Open J2 Open Open Load ZY AB 22Vac Load AB ZY GND TB2 ~ ~ To another Reader 12Vac To Power Supply Figure 2-5: Multiple Readers per Power Supply Connection. To connet the power supply to Reader RD21, refer to Figure 2-5 and complete the following steps: 1. Unplug terminal block TB2 from its connector TB1.
Connecting External Devices 12. Switch off the power supply. Note Terminal block pins marked 22Vac and GND can be used to transit Exciter power wires if they are run through the Reader enclosure. Connecting External Devices Figure 2-6 shows you how to connect external devices to the Reader. Caution Do not exceed the maximum ratings for the relay contacts and Motion Sensor input as stated in Appendix A, Specifications. +12.0Vdc +22.
Before You Begin Chapter 3 Exciter EX21 Installation and Connections This chapter explains how to: • • • • Assemble the Exciter EX21 using LF EX21 Antenna Kit (P/N 600007) and EX21 Enclosure Kit (P/N 600005) Make the LF antenna connections Connect serial interfaces and power supply Set the jumpers for interfaces Before You Begin Before starting the installation: Tools • Read Chapter 4, Setup Guidelines in the RFID System S21 Technical Guide.
Mechanical Assembling Mechanical Assembling To assemble the Exciter EX21, refer to EX21 General Assembly drawing and complete the following steps. Assembling the LF Antenna for EX21 The antenna frame consists of five separate segments, each with the following dimensions: two pieces - 0.4m long, two pieces - 2.0m long, and one piece - 1.0m long. Each segment includes an aluminum tube with an internal rubber hose. The segments are joined together using plastic corners.
LF Antenna Connections LF Antenna Connections The LF antenna is a 7-turn loop coil with the tap at the first turn. To create this multiturn loop and the proper tap connection, complete the following steps: 1. Position the antenna cable inside the plastic box as shown in EX21 Assembly. Cut the end closest to the terminal block - 110mm long, and the other - 360mm long. 2. Remove 80mm of the outside cable jacket, and strip about 8mm from each conductor isolation. 3.
Connecting the Power Supply To connect RS485 communication lines to the LFA21, refer to Figure 3-2 below. 1 2 3 4 t s eT 1J 2J 59 S 12 S 69 S 4J 5J J4 O O L L 1 J5 P4 1 Open Load Open Load P5 TB4 A1 B1 GP A2 B2 Incoming Cable RS485_ CMD TB6 A1 B1 GP A2 B2 Out going Cable RS485_ SGN RS485_ CMD RS485_ SGN Figure 3-2: Connections and Jumpers Settings for the RS485 Communication Lines complete the following steps: Caution 1.
Connecting the Power Supply The Exciter requires a 22 Vac or 23 to 28 Vdc power source, and a maximum current of 0.5 A. For more information, refer to Appendix A, Specifications. The power connector is located on the LFA21 assembly. 2. Use an electrical wire with at least a 16 AWG gauge to connect the power supply. 3. The Exciter’s main ground connection is on the power supply connector. It is indicated by the ground symbol.
Connecting the Power Supply 5. Switch on the power supply. 6. Check the voltage on the terminal block TB8 (between pins 1-3). 7. Plug terminal block TB8 into connector TB7. 8. Re-check the voltage in Step 6. 9. Check whether the voltage between pins 1 (Test) of J2 and Ground is 5.0 ± 0.2 V. 10. Switch off the power supply. Multiple Exiters per power supply. For this installation an isolation transformer is not required.
Assembling Other Models of Exciters 4. Connect the transformer output wires to the TB8 pins marked with the “~” symbol. 5. Connect the main ground connection to the TB8 pin marked with the ground symbol using the terminal block (see Figure 3-4). 6. Run the power cable to another Exciter if required. 7. Switch on the power supply. 8. Check the voltage on the terminal block TB8 (between pins 1-3). 9. Plug terminal block TB8 into connector TB7. 10. Re-check the voltage in Step 8. 11.
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Before you Begin Chapter 4 Power Supply TRM95 Installation and Connection This chapter explains how to: • • Install the Power Supply Make the input line and output connections All data provided in this chapter apply to both Power Supply models TRM95/120V (P/N 600579) and TRM95/230V (P/N 600626). Before you Begin Before installing the Power Supply: Tools • Read Chapter 4, Setup Guidelines in the RFID System S21 Technical Guide.
Wiring Connections and Supply Safety Please adhere to the following safety precautions: 1. Caution Only authorized personnel are qualified to install and repair the Power Supply unit. To reduce the risk of an electrical shock, disconnect the AC main supply before removing the unit’s cover. 2. Use only approved (CSA,UL, IEC) fuses, size 5x20mm, Type “T” (slow-blow), with appropriate rating (1A for 120Vac, or 0.5A for 230Vac). The correct fuse rating is marked on the front panel of the Power Supply unit.
Connecting Equipment to the Power Supply Unit Connecting Equipment to the Power Supply Unit The TRM95 unit has 2 separate outputs (12Vac/1A and 22Vac/2A) to power up Readers RD21 and Exciters EX21. Inputs AC mains and output voltages must be connected to the terminal block placed inside TRM95 and clearly marked. Attention Do not exceed the load ratings specified for each output: 1A for the 12Vac, and 2A for the 22Vac.
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Before You Begin Chapter 5 Configuration and Operation This chapter explains how to set-up and configure a RFID System S21. The IPC implementation is a practical example of the RFID System S21 configuration. For more information about the RFID System S21 configuration, refer to the RFID System S21 Technical Guide. Before You Begin Before starting the RFID System S21 configuration, do the following: 1.
Setting Up the Reader/PC Connection Setting Up the Reader/PC Connection To connect the Reader to a PC, do the following: 1. Use the RS232 or RS485 communication line to connect the Reader to the PC. For more information on these communication lines, see Connecting the RS232 Communication Line, and Connecting the RS485 Four-Wire Communication Line in Chapter 2. For the initial set-up, the connection with a local, mobile PC (Laptop) can be realized using an RS232 interface as shown in Figure 5-1 below.
Setting Up the Reader/PC Connection . CNO COM CNC + - + 8V DTA PWR OS I/0 Data LED DATA Power LED (optional) Controller CTL21 POWER S95 S21 RESET Button RESET J3 Load Open J1 P3 J2 Open Open Load Load ZY AB Connecting Board CBD16 AB PWR J3 J1 J2 Load Open ZY RS485 RS232 Interface Selection Connecting Board CBD16 ATT. OFF RS 485 TESTER RS232 USB Laptop Figure 5-2: Connecting the Reader to a PC/Laptop using RS485 interface. 2.
Reader’s Power-up Sequence Reader’s Power-up Sequence To verify the Reader’s power-up sequence, do the following: 1. Connect the power supply to the Reader. 2. Check whether the relay on the MBD21 board immediately clicks, and the POWER LED is on (See Figure 5-1). 3. Check whether the Reader performs the following power-on test sequence: the DATA LED on the MBD21 board remains ON for 6-7 seconds.
Resetting the Reader learning mode. For more information on this procedure, see Storing the Reader’s Configuration on page 5-17. Notes 6. Press the RESET button again to exit from the learning mode. 7. The DATA LED will stop flashing. 1. The serial communication configuration for an IPC application has the default values for the group of S parameters. For more information on the group of S parameters, refer to the RFID System S21 Reference Guide. 2.
Checking the Reader’s Basic Parameters 2. Check the System Code (SC), by typing: ISC The response should be: ISC= [your SC] If the displayed System Code is not identical with the application system code number, replace the Reader and report the problem to Lyngsoe. 3. Check the Receiver’s Serial Number (SN), by typing: ISN If the displayed serial number is not equal to the serial number on the Receiver’s REC21 board, set it to the correct value.
Setting Up the Exciter’s Address Setting Up the Exciter’s Address Your next step is to setup an address for each Exciter by using the S1 slide switch on the LFA21 board, as shown in Figure 5-3. 1 1 2 4 2 3 4 3 0 1 2 3 “1" “0" bit t se T 1J OFF ON A d d r e s s 2J 59 S 12 S 69 S 4J 5J O O L L Figure 5-3: Setting Up the Exciter’s Address The addresses must be sequential between 1 and 14. For example, if there are 4 Exciters, they must be assigned addresses 1, 2, 3, and 4.
LF Transmitter Output LF Transmitter Output The type of the generated LF excitation signals depends on the the position of “System” jumpers on the LFA21 and CTL21. For “System S21” jumpers J1 (LFA21) and J3 (CTL21) are to be set on S21 position. The LF excitation signal generated is of type EXID. This signal is a continuous OOK signal on 125 KHz. The modulation is a fixed repetitive frame [Excitation ID] containing the address of the reading point. (Reader Address).
LF Transmitter Output 3. Set the wanted TAP voltage to the value required by application (90V recommended for most cases): NVA=xx,xx - is the value in Volts 4. Set the wanted C9 threshold voltage to the value required by application (40V recommended for most cases): NVT=xx,xx - is the value in Volts 5. To start the Exciter self calibration process send :CONFIG:EXCITER n Wait about 30 seconds for the process to finish.
Configuring the Reader To check the Exciter’s current settings including its serial number, do the following: POWER:QUERY:EXCITER n ESN EVT - returns the value of threshold in Volts EVA - returns the TAP signal value in Volts Note The value of Group E parameters is valid only after a successful :POWER:QUERY:EXCITER command.
Setting Up the Carrier Threshold DHX=N To setup the Reader’s carrier threshold, do the following: 1. Switch off the excitation field, by typing: C 2. Set the Receiver’s signal-to-noise ratio, by typing: RSS=10 Note You can set other values for the RSS parameter. Lyngsoe recommends using a value between 10 and 20 for the RSS parameter. 3. If you are using Diversity, enable it by typing: HAD=Y Ensure that both UHF antennas are connected.
Setting Up the Exciter’s Test-Tag In installations where random interference is observed please contact Lyngsoe Systems A/S for assistance. IMPORTANT * For a normal setup, the sum of (HNL+RSS) must be less than - 85 dBm. * If the noise level is higher than -95 dBm, disconnect the UHF antennas from the Reader, and check whether the HNL value drops below -107 dBm. If this occurs, it means that there is unwanted transmission on the UHF channel.
Setting Up the Real Time Clock WRC=0 WRS=0 WSD=15 WSM=Y WTF=Y WTS=N WWP=Y WUD=$43FEnnrrkk where: nn is the PC’s address. If PC’s address is 1, or there is only one PC/site, nn=01. rr is the Reader’s address. If Reader’s address is 1, rr = 01. kk is the Exciter’s address. If the Exciter’s address is 1, kk = 01. 2. Turn off the LF field, by typing: C 3.
Configuring Reader Motion Sensor Driven Mode of Operation Example For an IPC application, you should set the IUT parameter to GMT time. To set it, type: IUT=YYMMDDhhmmssZ where YYMMDDhhmmss is the year, month, day, hour, minute and second respectively. Note: The parameter DTS must be set to “Y” in order for the reader to report time in seconds. The parameter IUM must be set to “Y” in order for the Reader to generate and store a special message each time the RTC is set by the IUT command.
Configuring Exciter Motion Sensor Driven Mode of Operation ROE=100 - after MS turns inactive, LF field and data buffering remain enabled for 5sec; DNT=Y - special message is generated if no tag is received before MS turns inactive; HMS=24 - special message is generated if MS never turned active in 24hrs; DIS=Y - adds special field to the buffered message indicating MS status; HOA=H - MS is concidered active when OS line is at +5V; HOS - returns the curre
Configuring the Reader’s Application Parameters To remotely test the MS functionality do the following: Send the :TEST:MS:EXCITER n command. Wait for a period of time. Send the :TEST:MS:EXCITER n again. Check the value of the EMS parameter. This value indicates the number of times the MS turned active since the last time the :TEST:MS:EXCITER n command was sent. If you know that there was some activity around the gate but the EMS=0, this means that the MS is defective.
Storing the Reader’s Configuration To configure the Reader’s network parameters, do the following: 1. Set the reporting mode, by typing: DAR=N. 2. Set the Reader’s address, by typing: IAD=r where r is the Reader’s address. The lowest value for this address is 1. For example, if there are 4 Readers in a network, they must be assigned the following addresses 1, 2, 3 and 4. Storing the Reader’s Configuration To store the Reader’s configuration, do the following: 1.
Reader - Final Setup Reader - Final Setup 1. Disconnect the PC from the Reader (See Figure 5-1 on page 5-2). 2. For network installations set jumper (P3) on the Motherboard MBD21 for “RS485” position. For more information on communication lines used by the Reader RD21, refer to Chapter 2, Reader RD21 Installation and Connections. 3. Verify the connections between the Reader and the rest of the equipment (shorts, loose connections, etc.) 4. Close the Reader’s enclosure.
S21 RFID System - Final Test @r HTL The Reader should respond with the value for this parameter. For example, HTL=95. d) If the HNL level measured in Step b) is lower than -95dBm, set the Reader’s Carrier Threshold level again, by typing: @r S or @r :CONFIG:THRESHOLD The Carrier Threshold level setting is correct if the new HNL level displayed is smaller than or equal to the level displayed in Step c. If not, check for unwanted transmission on the UHF channel.
S21 RFID System - Final Test The Reader must respond with the oldest record sent by the Exciter k’s Test-Tag, in the format set by the DHX parameter. For more information on this parameter, refer to the 95 Series RFID System Reference Guide. For an IPC application, the Reader’s Tag Record Buffer should contain 13-15 identical messages sent by the Exciter Test Tag in ANS.1 format. To read all messages, you have to repeat the commands: @r D @r E until you get the Null value $0500.
Programming and Testing the Transponder PT21 Chapter 6 Programming and Testing the Transponder PT21 This chapter explains how to setup a programming site and gives the procedure for programming the Transponders PT21. This chapter does not, however, explain how to choose parameter values. Transmission parameters are defined and set in the programming software provided by Lyngsoe Systems A/S. For more information parameter configurations for the Transponder PT21, see the RFID System 21 Reference Guide.
TQ21 Connections Setup the programming site, as shown in Figure 6.1: Power Supply 12Vac [12-16Vdc]/0.3A DB9-Male RS232 Cable DB9-Female PC or Laptop Power LED Dat a LED Tag Qualifier TQ21 Figure 1-7: P TQ21 Tag Qualifier Setup TQ21 Connections 1. Connect the RS232 cable. Plug one end of the cable (DB9-Male) into the 9-pins connector on the TQ21 (marked as RS232). Plug the other end of the cable (DB9-Female) into the serial port (typical COM1) of your computer. 2. Connect the power adapter.
New parameters and commands The functionality of the Tag Qualifier TQ21 can be configured by parameters. These parameters can be set from a PC connected through a standard serial interface RS232 to the TQ21. The parameters and commands supported by TQ21 are quite similar with those listed in the Reference Guide for System S21 with the following modifications.
Hardware configuration parameters Hardware configuration parameters Several parameters are used to set (configure) the hardware and must not be changed. If the TQ21's firmware is going to be updated, these parameters must be first written down and reprogrammed if were accidentally erased by the upgrading process. These parameters are: HA0, HA1, HA2, HA3, HA4, HA5, HA6, HA7, HA8, HA9, HAA, HV0, HV1, ISC and ISN.
Operation • • • • testing, and the command C is active for TQ21 (LF excitation disabled). Place the EUT inside the slot marked "Postal Tag" on the TQ21, with the battery side first (battery to be at the bottom of the TQ21's slot). Send the command B. Check the content of the received messages on the PC. Dedicated software can be provided in order to automatically process this information and to give just the "Pass" or "Fail" mark. Send the command C.
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Preventive Maintenance Chapter 7 Troubleshooting This chapter describes maintenance and troubleshooting procedures that you must follow when using the RFID System 21. These procedures complete the troubleshooting information given in Chapter 5, Configuration and Operation, for the initial system installation and configuration. Preventive Maintenance By using special commands, built-in Self Diagnostic circuits can check any part of the system and report an error code, if necessary.
General Guidelines Problem 1. No communication with a Reader. Symptom Probable Cause 1.1. Reader does 1.1.1. Reader has an incorrect address. not respond to any command. Solution 1. Check whether the Reader responds to commands using different addresses, by typing the following: @1 IVN, @2 IVN, @3 IVN. When a correct address is sent, the Reader will respond with its version number. 2.
General Guidelines Problem Symptom Probable Cause 1.1.3. Mismatched serial communication parameters. Solution 1. Perform a power on reset. Wait until the Data LED goes off. 2. Push once the RESET button on the Motherboard. The DATA LED should start blinking indicating the “Learning Mode”. 3. Type several random characters on the PC keyboard. The Reader should recognize the serial communication parameters, match them and display them on screen, f.e. 19200, None, 8, 1. 4.
General Guidelines Problem Symptom Probable Cause 2.2.1. The configurations 2.2. After the of the Transponder and power-on test is finished, the sign- the Reader do not match. on message is displayed on the PC, and the DATA LED is flashing only when a Transponder is activated. Solution 1. Using a reference Transponder with known parameters, test the Reader’s receiving capability. 2.
General Guidelines Problem Symptom Probable Cause 2.3.1. The carrier threshold 2.3. After the value is too high. power-on test is finished, the signon message is displayed on the PC, but the DATA LED is not flashing when a Transponder is activated. Solution 1. Check the ambient noise level (HNL parameter). The noise shoud not be higher than -95dBm. Type HNL several times to ensure that ambient noise does not change over time. If the noise is higher than -95dBm, it means that there is a jammer.
General Guidelines Problem 3. Reader does not record all transmitted messages. Symptom Probable Cause 3.1. Reader does 3.1.1. The receiving zone is too small because of not record all either a high carrier transmitted threshold, or there is messages by the random interference on Transponder. the UHF channel. Solution 1. Run the procedure, S21 RFID System - Final Test on page 5-18. Step 2 - Set up the Carrier Threshold for the Reader. 2.
General Guidelines Problem Symptom Probable Cause 4.3. DATA LED 4.3.1. Exciter’s Test Tag is placed beyond the limits is not flickering of the receiving zone, or the noise level is too high, or the Test Tag is out of specifications. Solution 1. Run the procedure, S21 RFID System - Final Test on page 5-18. Step 2 - Set up the Carrier Threshold for the Reader. 2.
General Guidelines Problem Symptom Probable Cause 7.1.2. The LF antenna is detuned by metallic objects that are in close proximity. 8. The Reader does not communicate to the PC. 8.1. No response 8.1.1. RS485 cable wires are damaged. from the Reader, intermittent response or garbled response. 8.1.2. Program in the Reader is not running due to internal failure. Solution 1. Check the Exciter’s VTAP. 2. Reposition the EX21 frames to minimize the detuning.
Overview Chapter 8 Drawings Overview This chapter contains drawings for the following: • • • Lyngsoe Systems Reader RD21 (600002) Lyngsoe Systems Exciter EX21 (600003) Lyngsoe Systems TRM95 Power Supply (600579) & (600626) Drawings 8-1
Overview Drawing 1 8-2 Drawings
LI P/N 350873 400044 500020 500060 400604 400561 450049 450050 450052 Description UHF Antenna 434 MHz, /4, w/TNC Male Connector Enclosure Reader RD21 Reader RD21 Module Assembly RF Cable Assembly RD21 Cable Grip, PG11, Plastic, Gray Screw Machine 6-32 x ¼” ST ZN PL PH PH DR Label SN/Aprv, Reader RD21 Label FCC, Reader RD21 Label Power Lyngsoe System Ltd Item 1 2 3 4 5 6 7 8 9 l BOM - Reader RD21 Gen Assy (PN 600002) 15July2003 Vendor Larsen LS LS Telegartner AmElec Spae-Naur LS LS LS Vendor Type KD0
Overview Drawing 2.
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Part Subassy Mech Part Hardware Washer Mech Part Mech Part Mech Part Mech Part Mech Part Screw Mech Part Mech Part Screw Washer Nut Mech Part Mech Part Mech Part Mech Part Mech Part ______________________ Lyngsoe Systems Ltd LS PN 500010 400596 350324 400692 400641 400682 400640 400642 400644 400667 400648 400647 400664 400691 400639 400600 400649 400604 400617 400645 Vendor LS CPI EPM Metrican CPI CPI CPI CPI CPI Metrican CPI CPI Metrican Metrican
8-6 Drawings Lyngsoe Systems 16 10 1 5 6 7 12 5 8 17 11 9 7 12 8 PN: 600003 17 Exciter EX21 General Assembly 6 Page 2 of 2 Overview Drawing 4.
52.0 (2.047) 1.5 (0.059) 211.0 (8.307) 149.0 (5.866) max 300.0 (11.81) Lyngsoe Systems 128.0 (5.039) 258.0 (10.157) 168.0 (6.614) Voltage Rating Label max132.0 (5.196) Assembly Scew AC OUT T1.0A 120V T0.5A 230V V0 2 1 Power Supply TRM 95 120 Volt Version - PN:600579 240 Volt Version - PN:600626 1. Dimensions: mm(inch). NOTES ( unless otherwise specified) ~LINE IN FUSE POWER 134.0 (5.275) Overview Drawing 5.
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Transponder PT21 Appendix A Specifications This appendix gives technical specifications for the Transponder PT21, the Reader RD21, the Exciter EX21, and the AC Source TRM95. It also gives information on system performances and special features. Transponder PT21 LF Receiver UHF Transmitter • Configuration: Direct detection for 125.0 kHz signals modulated On/Off (OOK) with 1200bps. • Minimum LF excitation duration: 150 ms. • Receiver Selectivity @3dB:11 to 37 kHz.
Reader RD21 Transponder Lifetime More than 5 years under normal use (1000 transmission/year). Environmental Operation Temperature - 20°C to +55°C. Storage Temperature - 40°C to +70°C. Relative Humidity Maximum 95%, non-condensing at +40°C Mechanical • Dimensions, max Length: 143.0 mm Width: 107 mm Height: max. 2.8 mm Approvals • Weight: max 12 g • Survives at least 1000 times through the automatic mail sorting machine. Approved under I-ETS 300 220, I-ETS 300 330, RS-210 and FCC Part 15.
Reader RD21 Additional Features • RF antenna diversity. • RF input signal level measurement. This information is attached to every received message. • Programmable carrier threshold. Only input RF signals above this threshold are processed. • Real time clock: a time stamp (Month/Day/Hour/Minute) can be added to every received message. • Reads data with or without error checking and encryption in hexadecimal or ASCII format.
Exciter EX21 Exciter EX21 LF Transmitter Additional Features • Carrier Frequency: 125.0 kHz, quartz crystal generated. • Modulation type: On/Off Keying (OOK). • Modulation Frequency: 1200bps. • Carrier and modulation frequency tolerance: ± 50 ppm. • Carrier and modulation frequency stability: better than 100 ppm over the temperature range. • Carrier and modulation frequency aging: maximum 3 ppm/year. • Maximum radiated E-field at 10 m: 109 dB µV/m +/-6 dB.
Power Supply TRM95 Power Supply TRM95 Input Output • AC line voltage: 120Vac - model TRM95/120V 230Vac - model TRM95/230V • Ratings: • Voltage tolerance: ±10% • Fusing: Type T (“Slo-Blo”), 5x20mm; 1A for TRM95/120V; 0.5A for TRM95/230V • Dual: 12 Vac/1A, 22Vac/2A • Frequency: 50/60Hz • Voltage tolerance: ±10% Model TRM95/120V - 0.7A, 60 Hz Model TRM95/230V - 0.35A, 50 Hz Environmental Operation Temperature - 30°C to +50°C. Storage Temperature - 40°C to +70°C.
System Performance Up to 15 Exciters EX21 can be controlled by any Reader RD21. More Exciters EX21 can be used to generate a specific shape for the excitation gate. Self Testing Capabilities At the request of the main computer, the RFID System automatically reports the status of the LF excitation field generated by each Exciter EX21, and the receiving capability of each Reader RD21. Object Sensor Monitoring An external object sensor device can switch the excitation field On and Off.
Message Format Appendix B Transponder PT21 Messages Message Format Each message has the following format SYN C S TA R T SC UD G ateI D C ntrl C RC KEY F LG where: Prmbl Sync Start SC UD GateID Cntrl CRC Flag Key PT21 Parameters Parameter DR EC EN HF ID IP LT RC RS SD TF TS Total Transmission Time = 0.7 ms continue 1. = a string of 10 bits of “0101010101”. = a string of 13 bits “0101010000111”. = 2 bytes system code; transmitted only if TS=Y.
Message Format There is a random delay called InterMsgDelay that occurs between two consecutive messages. This is implemented to ensure that the delay time does not repeat itself before 32 messages have occurred.
Message Format DR = 4 SM = Y TF = Y HF = N TS = N EC = Y CC = 5 EN = N SD RC+IP 1 3 5 7 9 11 13 10 0.82 0.87 0.93 0.98 1.04 1.09 1.15 12 0.96 1.03 14 1.1 1.17 1.23 1.1 1.18 1.26 1.34 1.42 16 1.22 1.31 1.4 15 17 19 21 23 25 27 29 31 1.2 1.26 1.31 1.37 1.42 1.48 1.53 1.59 1.64 1.3 1.37 1.43 1.5 1.57 1.64 49 51 1.7 1.75 1.81 1.86 1.92 1.98 2.03 2.09 2.14 33 35 37 39 41 43 45 47 2.2 1.7 1.77 1.84 1.91 1.97 2.04 2.11 2.18 2.24 2.31 2.38 2.45 2.51 2.58 2.65 1.5 1.
Message Format TF = Y, HF = N, TS = N, EC = Y, EN = N DR= 4 SD CC 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 1 143 133 118 109 102 97 88 82 77 74 71 68 66 62 58 55 53 51 49 47 46 44 43 42 41 40 39 38 37 36 35 35 34 33 33 31 2 129 110 103 97 86 80 75 71 68 66 61 57 54 51 49 47 45 44 42 41 40 39 38 37 36 35 34 33 33 31 30 29 28 27 27 26 3 107 100 89 80 75 71 68 65 59 54 51 49 47 45 43 41 40 39 38 37 36 35 34 33 31 30 29 28 27 26 25 25 24 24 2
Excitation Modes and Parameter Settings Appendix C Excitation Modes This appendix describes the various excitation modes (signal descriptions) and their associated parameter settings. Excitation Modes and Parameter Settings The table below lists the excitation modes and the associated parameter settings. Excitation Mode [Signal Description] Parameter Settings Continuous DC Mode (DC) [Continuous Unmodulated Carrier (131.
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Upgrading the Firmware Appendix D Reader Software Upgrade Procedure This appendix describes the procedures for upgrading the Reader RD21 (P/N 600002) main software using the serial interface RS232 or RS485. This software controls the functionality of the Micro controller placed on the Receiver assembly REC21 (P/N 500007). Upgrading the Firmware Upgrading the firmware involve the following steps: 1. Setting the Reader’s Address to 0 2. Saving parameters (those that are different from default) 3.
Upgrading the Firmware Saving Parameters Follow these steps: To determine a parameter’s value, for example, DCI, type the following command: Note DCI For example, the Reader responds: DCI=30 where 30 is the parameter value. 3. If the Reader was already configured, write down all parameters whose values differ from the set default values. For example, for an IPC installation, write down the values for the following parameters: DCI, DRI, HTL, RCC, RSS. 4.
Upgrading the Firmware The Reader must respond with the new firmware version number, for example: Receiver REC21 (c)Copyright Lyngsoe Systems Ltd. 2003 If not, repeat the procedure from Step 2. 7. If after completing Step 5, you still cannot communicate with the Reader, replace the Reader with another unit and return the faulty one to Lyngsoe. Using the RS485 Interface 4-wire Communication Line Follow these steps: 1. Connect your PC (COM port) to a Converter RS232/RS485.
Upgrading the Firmware Restoring Parameters Note Follow these steps: 1. Verify whether parameters were set to default during the upgrade procedure, by checking their values. If yes, then reset their values to the saved values (see Saving Parameters on Page D-2). a) Reader firmware ignores leading zeros for integers.
Upgrading the Firmware Final Instructions 1. You must repeat this procedure for each Reader RD21 that is installed on the site. 2. Lyngsoe recommends using the RS232 or RS485 4-wire communication line to upgrade the Reader’s software (these are more reliable communication links). 3. For more information on the Reader’s RD21 configuration, see Chapter 5, Configuration and Operation.
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Appendix E Reader Hardware Calibration Procedure This appendix describes the procedures for storing and resetting the calibration data in the Reader RD21 (P/N 600002). This procedure must only be used in a controlled lab environment. When first manufactured, certain calibration parameters (special parameters) are stored in a permanent memory location in the Reader. Once stored, these parameters are not affected by the :CONFIG:DEFAULT, :CONFIG:REVERT commands or firmware upgrades.
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Glossary Glossary a.c. (ac) Alternating current. ASCII (American Standard Code for Information Interchange) A system used to represent alphanumeric data; a 7-bit-plus-parity character set established by ANSI and used for data communications and data processing. Bit A binary digit; the smallest unit of data in the binary counting system, A bit has a value of either 0 or 1. Byte A group of eight bits that represent one data character.
Glossary Frequency Modulation (FM) Modulation by varying the frequency of a fixed-amplitude carrier signal in accordance with an information signal. Contrast with amplitude modulation (AM). Frequency-Shift Keying (FSK) Frequency modulation of a carrier by a digital modulating signal. FSK See Frequency-shift keying. LED See light emitting diode. LF Abbreviation for low frequency band-30 to 300 kHz. Light-emitting diode (LED) A unit that accepts electrical impulses and converts them into a light signal.
Glossary Tx Transmitter. UHF Ultra High Frequency band - 30 to 300 MHz. µC Micro controller.
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A AC Source TRM95 A-5 C Configuration principles Configuring Reader’s application parameters 1-3 5-16 D description reading points response signal Transponders 1-2 1-2 1-2 E excitation modes Exciter assembling the LF antenna connecting the power supply connecting the RS-485 communication lines installing LF antenna connections setting up addresses setting up the test-tag tools required Exciter address Exciters hardware specifications C-1 3-2 3-5 3-3 3-1 3-3 5-7 5-12 3-1 1-5 A-4 G general rules 1-3
5-20 self testing capabilities A-6 S setting up carrier threshold 5-12 setting up the Reader/PC connection setting up the Real Time Clock system code system performance Readers Transponders 5-10, 5-2 5-13 1-3 A-5 A-5 T testing System 95 text conventions Transponder message format parameters programming ?? Transponder Identification System purpose Transponders communicating with Readers decription examples hardware specifications system performance Troubleshooting 5-18 1-ii B-1 B-1 6-1– 1-1 1-2 1-2 1-2
