Preliminary Electromagnetic Inductive RFID System V720-series User’s Manual Long-Range Reader/ Writer V720S-BC5D4A V720S-BC5D4A-US Manual Number SRFM-005A
About this Manual: Thank you for purchasing our V720-series Electromagnetic Inductive RFID System. The V720-series is a family of products that were developed by fully utilizing our high technology and broad experience. This User’s Manual provides various information that will be necessary when using the Reader/Writer model V720S-BC5D4A / BC5D4A-US (hereinafter called the "Reader/Writer” or “R/W"), including the functions and performance of the Reader/Writer and how to use it.
Appl i cat i on Consi der at i ons < SUI TABI LI TY FOR USE > OMRON shal l not be r esponsi bl e f or conf or mi t y wi t h any st andards, codes, or regul at i ons t hat appl y t o t he combi nat i on of t he pr oduct s i n t he cust omer' s appl i cat i on or use of t he pr oduct s. At t he cust omer' s request , OMRON wi l l pr ovi de appl i cabl e t hi r d part y cer t i f i cat i on document s i dent i f yi ng r at i ngs and l i mi t at i ons of use t hat appl y t o t he pr oduct s.
I t i s our pract i ce t o change model number s when publ i shed r at i ngs or f eat ures ar e changed, or when si gni f i cant const r uct i on changes are made. However , some speci f i cat i ons of t he pr oduct s may be changed wi t hout any not i ce. When i n doubt , speci al model number s may be assi gned t o f i x or est abl i sh key speci f i cat i ons f or your appl i cat i on on your request .
Safety Precautions This chapter provides important information for the safe use of this product. Ensure to read the information carefully before use. In the safety precautions below, severity is categorized as either ”WARNING” or “CAUTION”. WARNING Caution Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage.
WARNING Never disassemble, repair, or modify the main unit and cables. z Do not disassemble, repair, or modify this product. Doing so may result in electric shock, fire, or personal injury. Do not handle the device with wet hands. Do not touch the terminals while the device is connected to the power supply. z Electric shock hazard. Do not allow the cables to be in contact with heaters. z The cable sheaths may melt and the exposed wire may cause electric shock or fire.
Cables with locking attachments must be secured before use. z Failure to do so may damage the device. The specifications of the DC power unit used must satisfy all of the following conditions: ・The power unit must be connected to the V720-series system and must not be connected to any other devices. ・The supply voltage for the power unit must be within the range specified in this document (within the range of DC24V + 10% and – 10%). ・Observe correct polarity when connecting the power unit.
Precautions This chapter provides important information for international standards and copyright. Ensure to read the information carefully before use. Declarations V720-BC5D4A and V720-BC5D4A-US conform to the following laws and standards. This conformity is effective only if V720-BC5D4A or V720-BC5D4A-US is used with the designated antenna, V720-HS04.
TABLE OF CONTENS SECTION 1 Features and System Configuration ...............................1-1 1-1 Features ..................................................................................................................... 2 1-2 System Configuration................................................................................................ 3 1-2-1 Example of 1-to-1 System Configuration............................................................. 3 1-2-2 Example of 1-to-N System Configuration........
TABLE OF CONTENS 4-2 Trial Operation ...........................................................................................................4 4-3 Reader/Writer Setting ................................................................................................5 4-3-1 Host Communications Setting (COM Port Setting) ........................................... 5 4-3-2 Chip Operating Mode Setting ..............................................................................
TABLE OF CONTENS 5-4-2 Write (WT) ........................................................................................................... 29 5-4-3 Read (RD)-Tag Detection: I.CODE1 Mode only................................................. 31 5-4-4 Read (RD)-UID Select/Specified Tag.................................................................. 32 5-4-5 Write (WT)-UID Select/Specified Tag ................................................................ 33 5-4-6 Read (RD)-Fast Read Access: I.
TABLE OF CONTENS 6-4-1 6-4-2 Check Flowchart ................................................................................................... 5 Check Items for Each Exit Code .........................................................................10 SECTION 7 Reference Data ................................................................ 7-1 7-1 Turn Around Time and Communication Time ..........................................................2 7-1-1 Communication time in I.CODE1 mode..................
SECTION 1 Features and System Configuration 1-1 Features................................................................................................................ 1-2 1-2 System Configuration .......................................................................................... 1-3 1-2-1 Example of 1-to-1 System Configuration ........................................................... 1-3 1-2-2 Example of 1-to-N System Configuration ..........................................................
1-1 Features 1-2 The V720-series Electromagnetic Inductive RFID System is ideal for the construction of highly functional, long-distance wireless ID systems for material control and logistics. V720S-BC5D4A (hereinafter called “Reader/Writer”) is the device to communicate with Tag (manufactured by OMRON) of the V720-series that use two kinds of I-CODE chips manufactured by Philips Semiconductor (Product name: SL1 ICS30 01, Common name: I.CODE1; and Product name: SL2 ICS20, Common name: I.CODE2).
1-2 System Configuration 1-2 1-2-1 Example of 1-to-1 System Configuration The V720S-BC5D4A has a built-in serial interface conforming to RS-232C and RS-485, thus making it possible to communicate with personal computers and PLCs. All the ordinary communication processes take place via commands from the host.
1-2 System Configuration 1-2 1-2-2 Example of 1-to-N System Configuration The unit has a built-in RS-485 interface that enables multi-drop connection of up to 31 Reader/Writer units per host such as a mainframe or PLC. The cable for RS-485 can be extended to a total maximum length of 300 meters.
SECTION 2 Specifications and Performance 2-1 Reader/Writer (V720S-BC5D4A) ............................................................................ 2-2 2-1-1 Nomenclature .......................................................................................................... 2-2 2-1-2 Names of Connector Terminals............................................................................... 2-3 2-2 Specifications..........................................................................................
2-1 Reader/Writer (V720S-BC5D4A) 2-1-1 Nomenclature (5) Connector for receiving antenna 2-1 (4) Connector for send/receive antenna (6) LED Display (1) Power supply connector N o. 1 2 (3) Connectors for host (s) Name Function/description Power connector Connects 24 VDC.
2-1 Reader/Writer(V720S-BC5D4A) 2-1 2-1-2 Names of Connector Terminals Each connector shows pin numbers ,which are viewed from the outside of the Reader/Writer. 1. Power connector Shape of connector 1 Pin number Name Description 1 GND Connects 0V. 2 + 24 VDC Connects the + side of 24 VDC. 3 GR Connecting to a ground of 100 Ω or less 2 3 2. Input/Output connector Signals have been insulated from one another.
2-2 Specifications 2-2 2-2-1 General Specifications Item Specifications Supply voltage 24VDC ±10% Power consumption 27 W or less Ambient operating temperature -10℃ to 50℃ (with no icing) Ambient operating humidity 35% to 85% RH (with no condensation) Ambient storage temperature -25℃ to 65℃ (with no icing) Insulation resistance Dielectric strength Vibration resistance Shock resistance 20 MΩ min.
2-2 Specifications 2-2 2-2-3 Reader/Writer Communications Specifications 1. Transmission specifications Item Specifications Central carrier frequency 13.56 MHz ± 7 kHz Antenna output V720S-BC5D4: 4.0 W or less Output impedance: 50Ω Modulation method ASK Degree of modulation 10% to 20% Fast mode: RZ/1 out of 4 Standard mode: 1 out of 256 Fast mode: 26.5 kbps Standard mode: 1.65 kbps Coding method Baud rate 2. Receipt specifications Item Specifications Central carrier frequency 13.
2-2 Specifications 2-2 2-2-4 I/O Specifications Input specifications (RST, IN1, IN2, and IN3) Output specifications (OUT1, OUT2, OUT3, and OUT4)) Item Input voltage Input impedance Input current ON voltage OFF voltage Input response time Specifications 24VDC ± 10% (including ripples) 2.2 kΩ 10mA TYP (24 VDC) 19 V min. 5 V max. 70 ms max. Item Max. opening and closing capacity Specifications 24VDC ± 10%, 50mA (including ripples) Wiring with I/O equipment (Ex.
2-2 Specifications 2-2 2-2-5 Host Communications Specifications The RS-232C interfaces for COM1 and COM2 have separate communication ports, and thus it is possible for these interfaces to have different communication settings. COM1 can be communicated via RS-232C or RS485 interfaces. RS-232C for COM2 is primarily used for Reader/Writer setup, whereas RS-485 pin at COM2 is used for multi-drop connection to other Reader/Writer devices.
2-2 Specifications 2-2-6 Dimensions 2-8 2-2
2-3 Cable (sold separately) 2-3 2-3-1 General Specifications Item Model V720-A 41 Antenna cable V720-A 51 Power cable V720-A 62 RS-232C cable Cable type Coaxial cable - - 2 (shield) 10 MΩ min. (at 250 VDC) between conductor and shield Leakage current of 1mA max. at 300VAC PVC 3 5 MΩ min. (at 250 VDC) between conductor and shield Leakage current of 1mA max. at 300VAC PVC 6 10 MΩ min. (at 250 VDC) between conductor and shield Leakage current of 1mA max.
2-3 Cable (sold separately) 2-3 ■ Power cable: V720-A51 Item Model Length (L1) V720-A51 3000+10-20(mm) Ф7.8(mm) Connection label Ф22(mm) Red(+24VDC) Black(0V) L1 White(GR) Connector (Reader/Writer side) ■ Cable for RS-232C: V720-A62(For DOS/V PCs) Item Model Length (L1) V720-A62 3M V720-A62 15M 3000+50-0 (mm) 15000+50-0 (mm) 32.2 Ф22 Ф6.6(mm) Connect label L1 Connector (Host side) Connector (Reader/Writer) ：The D-sub connector is an inch screw thread (M2.54) type.
2-4 Memory Map of Tag 2-4 2-4-1 I.CODE SLI Chip (Philips Semiconductor IC, product name: SL2 ICS20) This section describes a Tag incorporating a Philips Semiconductor IC chip SL2 ICS20 Label IC (hereinafter called “I.CODE SLI chip”), which is accessed by the system. This chip is in conformity with international standards or ISO/IEC15693. The user memory area of I.CODE2 chip consists of 28 pages (00h through 1Bh page) or 112 bytes.
2-4 Memory Map of Tag 2-4 2) System area of I.CODE2 chip This section describes a system area of I.CODE SLI chip. The system area of I-CODE SLI chip is allocated in the other area rather than user memory area. Execute a specific command to access to the system area. The processes in the system area are done by specific commands instead of page number allocations.
2-4 Memory Map of Tag 2-4 (4) DSFID DSFID indicates how data are organized in a memory. MSB LSB Byte3 DSFID (5) Write-access conditions The pages are write-inhibited permanently if they are so indicated in the memory map. The factory settings are as follow. If the bit of a particular page is 1, that page is write-protected.
2-4 Memory Map of Tag 2-4 2-4-2 I.CODE1Chip (Philips Semiconductor IC, product name: SL1 ICS30 01, SL ICS31 01) These specifications describe a Tag incorporating an IC chip I- CODE1 Label IC (product name: SL1 ICS30 01) from Philips, which is accessed by the system. This chip consists of a 64-byte memory. The upper five blocks (Blocks 0 to 4) of the memory are used as a system area having functions that do not relate to user memory.
2-4 Memory Map of Tag 2-4 2) System area of I.CODE2 chip １）SNR (pages FB and FC) SNR is a Tag-specific code and has been written into the memory during the chip production process. The IC is shipped with this page write-access inhibited (refer to page FD); there is no way of making this page rewritable by the user. ２）Write-access conditions (page FD) The pages are write-inhibited permanently if they are so indicated in the memory map. The factory settings are as follow.
SECTION 3 Functions 3-1 Operating Mode.................................................................................................. 3-2 3-1-1 Chip Operating Mode.......................................................................................... 3-2 3-1-2 Online Mode／Offline Mode ............................................................................... 3-2 3-2 Communication Modes....................................................................................... 3-3 3-2-1 Single Access .
3-1 Operating Mode 3-1 3-1-1 Chip Operating Mode This Reader/Writer has two Chip-Operating Modes for different types of Tags (and its IC Chips.) You have to set either of the Chip Operating Modes in accordance with the Tag you choose. The functions or command types/formats vary, depending on the Chip Operating Mode. The factory default is ISO Mode (I.CODE 1 Mode for Ver1.10 and lower). The mode is set by the Chip Operating Mode Switch Command (TY). Operating Mode ISO Moed I.
3-2 Communication Modes 3-2 This Reader/Writer has five communication modes to be selected by each command corresponding to the number and/or state of Tags in the communication area. Each mode is activated by specifying the communication in the command data. 3-2-1 Single Access Single Access is used to read data from or write data on the only Tag that exists in the Antenna Communication Area.
3-2 Communication Modes 3-2 3-2-3 Multiple Access Multiple Access is used to read data from or write data on the Multiple Tags in the Antenna Communication area simultaneously. Communications with Multiple Tags in the communications area is available. (This function is also called 1:N Access or Multiple Tag Simultaneous Access). The execution timing can be selected from Trigger, which executes immediately, or Repeat, which continues to wait for the Tags to enter the communication area. In I.
3-2 Communication Modes 3-2 3-2-5 Fast Read Access: I.CODE1 Mode Only The Fast Read Access speeds up the data readout in I.CODE1 Mode. The execution timing can be selected from Trigger, which executes immediately, Auto, which waits for the Tag to enter the communication area and executes, or Repeat, which repeats the execution for the Tag in the communication area.
3-3 Memory Check Function I.CODE1 Mode Only 3-3 By adding a check code to the data in the Tag, you can detect data errors due to the Tag memory (EEPROM) being overwritten, service life, and unforeseen factors. The check code uses the CRC code of the generating polynomial X16 + X12 + X5 + 1. A memory check is performed using the Memory Check Command (MC), which writes the check code, and the Memory Calculation Command (MK), which verifies the check code.
3-4 Lock Function 3-4 The Lock function protects data from being erased due to unintentional overwriting on the fixed data in the Tags. ■ Lock setting in ISO mode For the lock setting in ISO mode, you can write-protect any given areas by the page of Tag memory. If you execute Write command on a write-protect page, a write processing error (code:79) will occur. You can make the lock setting by executing the Lock command (LK) that enables access to the lock setting area.
3-5 Discriminating Access to Tag Function 3-5 The ID codes set in the Tags are utilized in identifying the target chips in the antenna’s application fields. Responses are returned only when the ID code in the command from the antenna and the ID code on the Tag are matched. The factory default of the Reader/Writer ID codes are all set to 00h, which means communications are available regardless of ID codes on the Tags. ■ I.CODE1 mode The I.
3-6 External I/O Function 3-6 The I/O connector has three external input ports and four external output ports to which such devices as sensors or actuators are connected to build a more efficient system. The external output may be dedicated to the antenna control, depending on the Reader/Writer settings. 3-6-1 External Input [Online Mode] The status can be obtained by the I/O Control Command (CC).
3-7 EAS Function 3-7 The Reader/Writer supports the EAS (Electronic Article Surveillance) system applied for anti-theft and other devices. The Reader/Writer identifies the unique data string returned by the EAS-bit enabled Tags and detects the existence of the Tags in the communication area. Multiple EAS-bit enabled Tags that exist simultaneously can also be detected. The Reader/Writer stops detecting the Tags by disabling the EAS bit on the Tags.
3-8 Duplicate Communication Protecting Function 3-8 The Duplicate Communication Protecting Function prevents the command that processes multiple Tags serially from performing multiple Read/Write processing for each Tag. This function controls the command so that it performs the processing only once per Tag and returns a single response, even in situations where a Tag is recognized more than once as shown below.
SECTION 4 From Start-up to Operation 4-1 Operation of Reader/Writer ................................................................................. 4-2 4-1-1 Offline Mode..................................................................................................... 4-2 4-1-2 Online Mode ..................................................................................................... 4-3 4-2 Trial Operation ..........................................................................................
4-1 Operation of Reader/Writer 4-1 The V720-series RFID system has two operation modes: Offline Mode and Online Mode. The functions and control methods by the host vary, depending on the Operation Mode. One of the two modes must be selected at system setup. 4-1-1 Offline Mode In the Offline Mode, the EAS-enabled Tags (the EAS function mounted on the Tags is not disabled) are always detected (1).
4-1 Operation of Reader/Writer 4-1 4-1-2 Online Mode Communication with Tags (2) is performed according to the command (1) from the connected host. The result is returned to the host as a response (3). The I/O can be read or controlled using commands. The input can be used as a command execution trigger, and the output can be used as a result-based control signal for peripherals. Some outputs are exclusively used for antenna control, depending on the settings.
4-2 Trial Operation ■ Checkpoints Check the following points before starting Trial Operation No． Checkpoint １ ２ ３ ４ ■ 4-2 Description Are the power supply and I/O lines connected Antenna connection Connection to the host Wired properly? Are the terminal screws properly tightened? Is the Antenna connected properly? Are the RS-232C and RS485 connectors connected properly? Antenna and Tag layout Are the Antenna and Tag located properly? Section-Item SECTION 4-6 SECTION 4-6 Refer to the Instruction Manu
4-3 Reader/Writer Setting 4-3 The Reader/Writer has been designed for the user to make all the settings by issuing commands from the host. The user can use either the COM1 or COM2 port to make settings. However, we recommend use of the COM2 port because its communications settings have been fixed at factory to survive a power reset.
4-3 Reader/Writer Setting 4-3 1) Communications type setting for COM1 port Set whether COM1 will be used as RS-232C or RS-485 by using the communications type setting command (CT) Setting name (command name) Communications type setting *1 (CT command) Default set value Setting range RS-232C RS-485 RS-232C 2) Node No. setting If more than one Reader/Writer is connected to a single host, each Reader/Writer needs an ID number so that the host can discriminate one Reader/Writer from another.
4-3 Reader/Writer Setting 4-3 4-3-3 Command Processing Procedure Setting 1)UID/SNR Addition Setting For the Read command response in I.CODE1 Mode or the Read/Write command response in ISO Mode, whether to add the UID/SNR (a serial number which is a unique ID given to a Tag) must be selected. When enabled, this command makes association of data contained in a Tag to the serial number of that Tag considerably easier.
4-3 Reader/Writer Setting 4-3 4-3-4 Antena and Tag Communications Setting Set how communications should take place between the Reader/Writer and a Tag. 1) Reader/Writer-Tag communications speed setting Set the speed of communications between the Reader/Writer and a Tag (baud rate from the Reader/Writer to a Tag). The baud rate from a Tag to the Reader/Writer is fixed (26.5kbps). This setting can be made by using the Tag Communications mode Setting Command (CM).
4-3 Reader/Writer Setting 4-3 4-3-5 Offline Mode Setting Set whether the Reader/Writer will start in offline mode or online mode. This setting can be made by using the offline mode setting command (FL) Setting name Setting Default set value (command name) range Offline Mode Setting (FL command) Enable (offline mode) Enabled, Disabled EAS threshold 75%(4Bh) 25%(19h) 0-100％ (00h〜64h) OUT1 output time 500 ms (05 h) 100ms-22.
4-4 Installation Environment 4-4 The V720S-BC5D4 Reader/Writer is a highly reliable control device withstanding tough environments. In order to ensure the full, reliable performance of the RFID system, however, observe the following. 4-4-1 Installation Do not install the Controller under the following conditions. • The ambient temperature is not within a range between -10℃ and 50 ℃ or there are radical temperature changes resulting in condensation.
4-5 Mounting Method 4-5 The Reader/Writer must be mounted using a mounting plate. When mounting, be sure to secure it onto the mounting plate with M6 screws, spring washers and flat washers. Do not apply organic solvent, e.g., screw lock solvent, to the screws to secure the Reader/Writer. If you do, the Reader/Writer body and the mounting plate may be damaged. 4-5-1 Mounting Dimensional Drawing 235.5±0.2 102±0.2 4-M6 or 4-φ 6.
4-6 Wiring Method 4-6 4-6-1 Power Supply and Grounding Wires ● Power cable Power side Reader/Writer side Connector plug Connected to Name Pin No． 24 VDC + 24 VDC 2 GR FG 3 0V GND 1 ● Recommended Compact DC Power Supply (OMRON) Model S82K-03024 Output capacitance 24VDC at 1.3A Input voltage 100/200V Attach the ferrite core (accessory) for the cable to supply 100VAC. AC side DC side DC power supply S82K-03024） How to attach ferrite core: Open the ferrite core.
4-6 Wiring Method 4-6 4-6-2 Host Communications Cabling 4-6-2-1 RS-232C Interface Cabling V720-HS04 PC RS-232C cable V720-A62 Antenna cable V720-A41 RUN COMM NORM ERROR AC100V RU N CO MM NO RM ER RO R Power supply S82K-03024 Power supply cable V720-A51 Host comput er Reder/Writer (COM1, COM2) Pin layout when cable connector on Reader/Writer is viewed from engaging face FG 3 SG SG 2 SD SD 1 1 RD RD 4 4 ＋ 5 − 2 3 5 Shield wire Caution ● ● ● The shield wire must always be grounde
4-6 Wiring Method 4-6 1) Connection to a DOS/V Host with 9-pin Port (Pin layout when cable connector is viewed from engaging face) 1 1 5 2 3 4 5 9 Reader/Writer リーダライタ COM1, COM2 3 2 1 4 5 SG SD RD ＋ − Connecting 接続機器Device Connector of cable ケーブルに付いたコネクタ 6 DOS/V PC DOS/ Vパソコン 9-pin, female 9ピン、メス GR SG 5 SD 3 RD 2 RS 7 CS 8 （シールド線） Shield wire ：Connect the shield wire to the connector cover on the PC side.
4-6 Wiring Method 4-6 4-6-2-2 RS-485 Interface Cabling PC RS232C/485 converter V720-HS04 V720-HS04 V720-HS04 Antenna cable Setup V720-A41 ・Node NO. 01 Setup ・Node NO. 00 Setup ・Node NO.
4-6 Wiring Method 4-6 1) Example of wiring for 1-to-1 connection Host 上位機器 V720SBC5D4A V720- BC5D1 ＋ COM1 COM2 − 4 5 4 5 Terminal resistance 220Ω is on Ω 終端抵抗220 Terminal resistance 終端抵抗 220Ω 220Ω is on あり あり Note Be sure to turn on the terminal resistance on both the host and Reader/Writer sides.
4-6 Wiring Method 4-6 ■ Example of wiring between host and Reader/Writer Host side Reader/Writer side Connected to Connector plug (accessory) Name Pin number １ RD SD SG + - + - Pin layout when cable connector on Reader/Writer is viewed from engagingface 1 ２ 4 2 3 5 ３ Port ４ ５ COM1 COM2 Terminal No. 4 5 4 5 Polarity. + - + - * Short circuits have been established within RS-485 between Pin 4 of COM1 and Pin 4 of COM 2 and between Pin 5 of COM2 and Pin 5 of COM1.
4-6 Wiring Method 4-6 4-6-3 Assembly of Connector 4-6-3-1 Assembly of Host Communications Connector and I/O Connector 1) Disassemble the connector as follows: (1) Loosen the set screw and remove the barrel from the end bell (by turning it counterclockwise). (2) Loosen the clamp screw, remove the clamp saddle from the end bell. Clamp nut Clamp saddle Coupling nut End bell Barrel Setscrew 2) Draw the cable through the disassembled parts in the order shown below.
4-6 Wiring Method Iron tip 5) Soldering Solder Contact Wire Conductor 4-6 (1) Insert the pre-soldered wire into the solder pot of the contact. (2) Heat the contact and the conductors with a soldering iron. (3) Pour solder to fill the opening between the contact and the conductors. Soldering iron to use 30W Conductor cross-sectional area (mm2) 0.5 6) Reassemble the connector as follows. (1) Put the coupling nut with directing its thread to the connecting side over the barrel.
SECTION 5 Control from Host 5-1 Control by Commands ............................................................................................. 5-3 5-1-1 Control by Commands ..........................................................................................5-3 5-1-2 Command-Response Flow ....................................................................................5-3 5-1-3 ACK/NACK Control ..............................................................................................
5-5-3 5-5-4 5-5-5 5-5-6 5-5-7 5-5-8 5-5-9 5-5-10 System Lock (SL): ISO Mode only..................................................................... 5-42 Read (RD)-SNR Read: I.CODE1 Mode only...................................................... 5-43 EAS Setting (ES): I.CODE1 Mode only ............................................................ 5-44 QuietBit Setting (QB): I.CODE1 Mode only..................................................... 5-44 Lock Setting (LK): ISO Mode...............................
5-1 Control by Commands 5-1 5-1-1 Control by Commands The Reader/Writer operation is controlled by the commands from the connected host. The result of the command execution is returned as a response. In Online Mode, all the operations, such as Tag-data Reading/Writing, Tag-function setting, operating condition setting, or Reader/Writer function control, are controlled by the commands.
5-1 Control by Commands 5-1 5-1-3 ACK/NACK Control When using ACK/NACK control, if the host does not receive a normal response, the Reader/Writer will resend the response by either (1) when the host sends a NACK command to the Reader/Writer or (2) when there is no response within a set period of time. Consequently, a response can be received without communicating with a Tag again.
5-2 Control Procedures for Each Communication 5-2 The operating sequences including the communication with the Tag or timing for returning the response vary, depending on the communication mode. The communication mode is set by specifying the communication mode in the command data. The access and mode specified as the communication settings must be those specifiable for each Tag status in the specified antenna’s communication area or the connection topology with the host.
5-2 Control Procedures for Each Communication 5-2 5-2-1-3 Single Repeat Mode: ISO Mode The Reader/Writer waits for a Tag to enter the R/W Antenna’s communications area. Every time a Tag enters the communications area, the Reader/Writer communicates with the Tag and returns a response. It is not until communications are stopped by the Stop(ST) or Reset(XZ) command that the Reader/Writer accepts the next command. (Host) (Reader/Writer) (Tag) (1) The Reader/Writer receives a command.
5-2 Control Procedures for Each Communication 5-2 5-2-1-4 Polling Auto Read If an Auto command is used when a single host controls more than one Reader/Writer, the communications path between the host and one of the Reader/Writers to which the command is sent becomes busy, disabling the host to control other Reader/Writers. On the other hand, when a Polling Auto command is sent instead, the Reader/Writer returns a response according to the request from the host.
5-2 Control Procedures for Each Communication 5-2 5-2-2 FIFO Access In FIFO (first-in, first-out) access, communications with Tags entering the communications area one after another are carried out in sequence. Once communications with Tags are completed, access to them is prohibited. Consequently, even if Tags with which communications are already completed exist in the communications area, a newly entering Tag can be accessed. Simultaneous entering of two or more Tags causes a communications error.
5-2 Control Procedures for Each Communication 5-2 5-2-2-2 FIFO Auto Mode The Reader/Writer waits until the Tag has entered the antenna communication area and executes the command it received from the host. The Reader/Writer prohibits access to the Tag after the communication has been completed, and keeps the antenna oscillated to maintain the FIFO access.
5-2 Control Procedures for Each Communication 5-2 5-2-2-3 FIFO Repeat Mode The Reader/Writer waits until the Tag has entered the antenna communication area and starts communicating. It communicates with the Tags serially as they enter the antenna communication area, and returns the responses.
5-2 Control Procedures for Each Communication 5-2 5-2-3 Multiple Access In Multiple Access, the Reader/Writer can communicate with all of the multiple Tags present in the antenna communication area. In I.CODE1 Mode, the Tag code corresponding to the number of Tags present in the communication area must be specified. For the Tag number specifications, refer to SECTION 5-2-5.
5-2 Control Procedures for Each Communication 5-2 In Write Command (WT) with UID/SNR addition setting disabled (in I.CODE1 Mode, the command with UID/SNR addition setting eabled is also covered), the Reader/Writer communicates with all the Tags in the communication area on receiving the command, and returns the results of the communications with each tag as a response. At the completion of communicating with all the Tags, it returns Detection End Response (Response Code: 00) once.
5-2 Control Procedures for Each Communication 5-2 5-2-3-2 Multiple Repeat Mode Read Command (RD) Write Command (WT) with UID/SNR addition setting enabled (Excluding I.CODE1 Mode). The Reader/Writer continues to return a response every time it has communicated with a Tag in the communication area. This operation continues until the Stop Command (ST) or Reset Command (XZ) has been executed. Other commands are rejected in this state.
5-2 Control Procedures for Each Communication 5-2 5-2-4 Selective Access Selective Access is a function to communicate with the specified Tags among multiple Tags in the antenna communication area. The processes vary depending on the Reader/Writer’s mode. 5-2-4-1 ISO Mode First, the Reader/Writer reads out the UID of the Tag in the communication area using Read Command (in multiple processing modes).
5-2 Control Procedures for Each Communication 5-2 ■ Selective Access Operation: In ISO Mode (Host) (Reader/Writer) (Tag) (1) The Reader/Write receives a command. Multi-Read Command (UID Additional Setting) Waits for a Tag Tag (UID1) A response (UID1) (2) The Reader/Writer communicates with the Tag. (3) The Reader/Writer returns a response with UID.
5-2 Control Procedures for Each Communication 5-2 5-2-4-2 I.CODE1Moed After allocating the Temporary numbers to the Tags in the communication area using Tag Detection Command, the Reader/Writer communicates with the Tags based on the allocated numbers. The Tag code must be specified as command data according to the numbers of the Tags present in the communication area. For Tag number specifications, refer to SECTION 52-5. 1. Numbers are allocated to the Tags by Tag Detection Command.
5-2 Control Procedures for Each Communication 5-2 ■ Selective Access Operation: In I.CODE1 Mode (Host) (Reader/Writer) (Tag) (1) Reader/Writer receives a command Tag Detection Command (RD) Communications process Tag (0) (2) The Reader/Writer communicates with the Tag; it Adds a temporary number to the response and stores it within the Reader/Writer. Holds a response Communications process Tag (1) Holds a response (3) A response which is held Returns (with Temporary No.
5-3 Command-Response Format 5-3 5-2-5 Specifying a Tag Code: I.CODE1 Mode The timeslot setting is the setting in the command frame when communicating with multiple Tags simultaneously using Multi-system commands. This setting must be set according to the number of Tags with which to communicate simultaneously. Refer to the table below for the relationship between the number of Tags and this setting. Specifying a Tag Code 1 2 3 4 5 6 7 Max. No.
5-3 Command-Response Format 5-3 5-3-1 Command Frame Structure The Reader/Writer continuously receives signals from STX through ETX, and executes the command when the correct node number is received (*1). If, after receiving an STX signal, another STX signal is received before an ETX signal is received, the second STX signal is given command priority. STX Node No. "" 1 2 Command Code "" Option BCC ETX 2 1 1 Name Description Indicates the beginning of a communication frame (text).
5-3 Command-Response Format 5-3 5-3-3 Command Code List The command type is set by specifying the following command types as a command code: There are four major types of commands. (1) Communications command This command communicates with a Tag. (2) System command This command accesses to the system area of a Tag. (3) Reader/Writer control command This command controls the Reader/Writer, e.g. stopping a command in process, and/or resetting.
5-3 Command-Response Format TM Antenna Changeover Terminal Resistance FL Offline Mode Setting AC IS EW TY MX CA Initialization of Setting Set Value Writing Chip Operating Mode Switch Duplicate Communication Protecting Setting I/O Automatic Changeover setting 5-3 Sets the antenna changeover in the Reader/Writer. Sets the terminal resistance for RS485 in the Reader/Writer. Sets which mode the Reader/Writer will start online or offline. Reset the Reader/Writer to the factory settings.
5-3 Command-Response Format FIFO Repeat FR UID Select (ISO Mode) SL Tag Detection, Tag Designation (I.CODE1 Mode) LT, Fast Read Access (I.CODE1 mode) UT, UA, UR 5-3 communicates with the entering Tag and returns a response. After sending the response, the Reader/Writer will continue to operate until it receives a FIFO command, Stop command (ST), or Reset command(XZ). After sending the response, the Reader/Writer enters a command waiting state.
5-3 Command-Response Format 5-3 5-3-5 Command-by-Command Communication Method List The communication modes specifiable as a communications method vary, depending on the command. Communications method options are not provided for some commands, their communication methods are determined by specifying the command types. Communications Method Command Read Note Polling Read *1 Polling Write *1 Single FIFO Multiple Selective Fast Read (I.
5-3 Command-Response Format 5-3 5-3-6 Specifying a Data Code In the Command code area of the command data, whether the Reader/Writer reads or writes data as ASCII code (or JIS8 code) or HEX code numeric data is specified. Name ASCII Code Code A HEX code H Description A character of data occupies 1 byte (1 address) on a Tag as an ASCII code or a JIS 8 code. Control codes 02 (STX) and 03 (ETX) cannot be used. A character is handled as hexadecimal data.
5-3 Command-Response Format 5-3 5-3-7 Response Code List 5-3-7-1 ISO Mode Type Normal completion Response Code “00” “72” “74” “75” “76” Host communica tions error Communica tions error “10” “11” “12” “13” “14” “18” “70” Name Description Normal completion Multi-processing end The received command ends normally with no error. Communications end response when a multi-trigger function is used.
5-3 Command-Response Format 5-3 5-3-7-2 I.
5-3 Command-Response Format 5-3 5-3-8 Example BCC Calculation BCC is the result of the horizontal parity calculation of the data right after STX up to ETX inclusive. Refer to JIS5001 Transmission Path Character Configuration and Using Horizontal Parity for details. Node No.
5-4 Communication Commands 5-4 5-4-1 Read (RD) This command reads data from a Tag in the communications area.This is also used to read some system areas in I.CODE1. Command Communic Data Tag First read No. of ETX BCC Code type type page read pages ations “RD” method STX Node No.. 1 2 2 Communications method Data type Tag typ e * In ISO mode In I.CODE1 mode (Tag No.
5-4 Communication Commands 5-4 5-4-2 Write (WT) Writes data to the Tag in the communication area. Also used to write data to some system areas in I.CODE1. There is no need to perform the verify read process, since this command performs it as part of its execution. STX 1 Node No. Command code Communi Data Tag First write “WT” page cations type type method 2 Communications method Data type Tag typ e * In ISO mode 2 2 1 1 No.
5-4 Communication Commands 5-4 (1)In ISO mode 1) The completion of write (In a case where UID (SNR) additional setting is invalid) STX Node No. Retry flag 1 2 1 Command code “WT” Response code “00” 2 2 No. of written pages ETX BCC 2 1 As specified 1 2)The completion of write (In a case where UID (SNR) additional setting is valid) There are responses according to the number of Tags in communications area when multicommunications method is preferred. STX Node No.
5-4 Communication Commands 5-4 5-4-3 Read (RD)-Tag Detection: I.CODE1 Mode only This command assigns temporary Tag numbers to each of multiple Tags that are present in the communications area. This command is available only when the system is in I.CODE1 mode. In ISO mode, you must enable UID (SNR) additional setting, execute 5-3-1 Read Command (RD), and get UID since the system uses UID (SNR) data as a temporary number. STX Node No.
5-4 Communication Commands 5-4 5-4-4 Read (RD)-UID Select/Specified Tag In ISO mode, this command reads data from the Tag in communications area by specifying UID (SNR). In I.CODE1 mode, this command reads data from the Tag which is specified by the Temporary Number. STX Node No. Command code Communic “RD” ations method 1 2 Commun ications method 2 2 In ISO mode In I.CODE mode First read page No.
5-4 Communication Commands 5-4 5-4-5 Write (WT)-UID Select/Specified Tag This command writes data to the Tag of either UID (SNR) (in ISO mode) or Temporary Number (in I.CODE1 mode). STX Node No.. 1 2 Communic ations method Command code Communi “WT” cations method 2 2 Data type Tag type 1 1 First First write page write page 2 UID(SNR) 2 16 Write data As specified ETX BCC 1 1 Specifies the communications method with a Tag.
5-4 Communication Commands 5-4 5-4-6 Read (RD)-Fast Read Access: I.CODE1 Mode only When there is only a single Tag in the communications area, this command enables to read data from the Tag faster than a usual Read. Command code “RD” STX Node No.. 1 2 Communi Data Setting type Tag cations No. method 2 Communications method Data type Tag No. setting First read page No. of read pages 2 1 1 First read page No.
5-4 Communication Commands 5-4 5-4-7 Polling Single Auto Read (PR) Immediately after receiving the Polling Single Auto Read Command, the Reader/Writer returns a response indicating the acceptance of the command, and waits for a Tag to enter the communications area of the Antenna. Then it reads the data of the entering Tag. The host can inquire of the Reader/Writer about the results of communications processing using the Polling Check (PC) command. STX 1 Node No..
5-4 Communication Commands 5-4 5-4-8 Polling Single Auto Write (PW) Immediately after receiving the Polling Single Auto Write Command, the Reader/Writer returns a response indicating the acceptance of the command and waits for a Tag to enter the communications area of the Antenna. Then it writes data to the entering Tag. The host can inquire of the Reader/Writer about the results of communications processing using the Polling Check (PC) command.
5-4 Communication Commands 5-4 5-4-9 Polling Check (PC) You can check the results while the Polling Single Auto Read Command and Polling Single Auto Write Command are being executed. You can use Polling Check after the Polling Single Auto Read Command and Polling Single Auto Write Command have been sent. STX Node No.. 1 Command code “PC” 2 ETX BCC 2 1 1 (1) Response to Polling Single Auto Read Command (PR) STX Node No..
5-4 Communication Commands 5-4 5-4-10 Polling End (PE) This command aborts the execution of Polling commands. It is used after a Polling command is sent. STX Node No.. 1 Command code “PE” 2 ETX BCC 2 1 1 (1) Before the completion of communications with a Tag STX Node No.. Retry flag 1 2 1 Command code “PE” 2 Response ETX BCC code “75” 2 1 1 (2) After the completion of communications with a Tag STX Node No..
5-4 Communication Commands 5-4 5-4-11 Memory Check (MC): I.CODE1 Mode only This command uses the generating polynomial, X16 + X12 + X5 + 1 to calculate the range of the check block designated by a user and to compare the results with the check code attached to the check block. STX 1 Node No.. Command code “MC” 2 Check Check block ETX BCC block. No. of pages header page 2 Check block Header page 2 2 1 1 Specifies the header page of check block in hexadecimal.
5-5 System Command 5-5 5-5-1 System Read (SR): ISO Mode only This command read system information in the system area of the Tag. STX Node No.. 1 Command code “SR” 2 Tag System ET BC type method“00 X C ” 2 Tag type 1 2 1 1 Specified a Tag type A: I.CODE SLI chip Specified the kind of system information. “00” fixed. System method STX Node No..
5-5 System Command 5-5 5-5-2 System Write (SW): ISO Mode only This command writes the settings of AFI, DSFID, and EAS to a Tag. (1) For normal write STX Node No.. Command code Tag “SW” type 1 2 2 1 (2) When UID of a Tag is specified STX Node No.. Command Tag code type “SW” 1 2 2 Tag type System method UID Data AFI DSFID EAS setting 1 System method data 2 2 ETX BCC 1 1 System method UID data 2 16 2 ET BC X C 1 1 Specifies the Tag type. A: I.
5-5 System Command 5-5 5-5-3 System Lock (SL): ISO Mode only This command locks (write-inhibit) to write to system area information of a Tag. (1) Normal lock STX Node No.. Command code Tag “SL” type 1 2 2 1 System method 2 ETX BCC 1 1 (2) In a case where UID of a Tag is specified STX Node No.. Command code Tag “SL” type 1 2 2 Tag type 1 System method UID 2 16 ETX BCC 1 1 Specifies the Tag type. A: I.CODE SLI chip Specifies the system information to lock.
5-5 System Command 5-5 5-5-4 Read (RD)-SNR Read: I.CODE1 Mode only This command read SNR (Tag-specified code) which incorporates I.CODE1 chip. Refer to 2-4 of Section 2 Memory Map of Tag. STX Node No.. 1 2 Command code Communications “RD” method 2 2 Data type Tag No.
5-5 System Command 5-5 5-5-5 EAS Setting (ES): I.CODE1 Mode only This command sets the EASBit of a Tag incorporating I.CODE1 chip. When the EASBit is disabled, the Reader/Writer will not return a response to the EAS Check Command (EA). STX Node No.. Command code “ES” 1 2 Setting 2 ETX BCC 2 1 1 Specification range：00to01 00:EAS enabled 01:EASdisabled Setting STX Node No..
5-5 System Command 5-5 5-5-7 Lock Setting (LK): ISO Mode This command is used to set and check the write-protection of Tags incorporating I.CODE1 chip. A Tag can be locked (or write-protected) by memory page. STX Node No.. Command code Tag First lock page type “LK” 1 2 2 Tag type 1 lock No. of pages 2 2 ETX BCC 1 1 Specifies Tag type. A: I.CODE SLI chip Specifies the first page to be locked in hexadecimal.
5-5 System Command 5-5 5-5-8 Lock Setting Read (LR): ISO Mode only This command reads lock setting information of a Tag incorporating I.CODE SLI chip. STX Node No.. Command code Tag First lock page type “LR” 1 2 2 Tag type 1 2 No. of lock pages 2 ETX BCC 1 1 Specifies Tag type. A: I.CODE SLI chip Specifies the first page, which reads lock information, in hexadecimal. Specification range: 00 to FFh （I.
5-5 System Command 5-5 5-5-9 Lock Setting (LK): I.CODE1 Mode This command is used to set and check the lock (write-protection) of Tags incorporating I.CODE1 chip. A Tag can be locked (or write-protected) by memory page. To read lock information set in a Tag, set all lock information in the commands to 0. STX 1 Node No.. Command code “LK” 2 Lock setting 2 Lock setting ETX BCC 4 1 1 Set the bit corresponding to the page you want to lock to 1. *See the table below.
5-5 System Command 5-5 5-5-10 EAS Check (EA) This command transmits the EAS command continuously and returns the percentage of data that matches the EAS response code. 1)In ISO mode STX 1 Node No.. Command code Tag “EA” type 2 2 1 ETX BCC 1 1 2)In I.CODE1 mode STX 1 Node No.. Command code ETX BCC “EA” 2 2 Tag type （ISO mode） 1 1 Specifies Tag type. A: I.CODE SLI chip * Not added in I.CODE1 mode. STX Node No..
5-6 Reader/Writer Control Commands 5-6 5-6-1 Stop (ST) Stop (ST) Stop command terminates Auto mode, Repeat mode, EAS check and other command processings, as well as continued FIFO state after FIFO Access, or Select state after executing Detection command, returning to the Reader/Writer to a stand-by status to wait for commands. STX Node No. Command code "ST" 1 2 2 ETX BCC 1 1 STX Node No.
5-6 Reader/Writer Control Commands 5-6 5-6-5 I/O Control Command (CC) This command changes the state of the user output terminals (OUT1 to OUT4) and reads the state of the user input terminals (IN1 to IN3). STX Node No. 1 2 Command OUT OUT OUT OUT ETX BCC code 1 2 3 4 "CC" 2 1 1 1 1 1 1 The state of an output is designated in hexadecimal. Specification range: 0 to 1 (1: ON / 0: OFF) When * is specified, the Reader/Writer reads the state of a terminal.
5-6 Reader/Writer Control Commands 5-6 5-6-7 Version (VS) This command reads the software version for the Reader/Writer. STX Node No. Command code "VS" 1 2 2 ETX BCC 1 1 STX Node No. 1 2 Response code Retry Command flag code "VS" 1 2 Response code "00" Software version 2 4 ETX BCC 1 1 00: Normal completion For other Response Codes, refer to SECTION 5-3-7 Response Code List.
5-7 Setting Command 5-7 5-7-1 Reader/Writer AFI Enable/Disable Changeover (AE): ISO Mode only In ISO mode, you must set AFI of the Reader/Writer either enable or disable when communicating with a Tag. If you set AFI enable, only Tags, which has the same AFI, can be communicated. When you set AFI disable, the communications are enabled no matter AFI in Reader/Writer is set or not. STX 1 ETX BCC Node No..
5-7 Setting Command 5-7 5-7-3 Reader/Writer Family Code Setting (FC): I.CODE1 Mode The FC Command is used to set or read the Family Code in the Reader/Writer. Only Tags that have the same Family Code as the one set by this command can perform communications. If this Family Code is set to 00, communications will be possible with all Tags. The default set value of the Reader/Writer is 00. STX 1 Node No..
5-7 Setting Command 5-7 5-7-5 UID/ SNR Addition Setting (SN) This command selects whether SNR will be added to a response to a Read Command (excluding Special Read). STX Node No. 1 2 Command Additi ETX BCC code on "SN" mode 2 1 1 1 Specify whether SNR will be added to a response. Setting range: 0 to 1, or * Addition mode When * is specified, the Reader/Writer reads the number that is currently set.
5-7 Setting Command 5-7 5-7-6 Node Number Setting(NN) This command sets and reads the node number of the Reader/Writer. STX Node No. 1 2 Command Node number ETX BCC code change "NN" specification 2 2 1 1 Specifies the node number in decimal that you want to change. Specification range: 00 to 31, ** When “**” is specified, the Reader/Writer reads the current setting. Node number change specification STX Node No.
5-7 Setting Command 5-7 5-7-7 Communications Port Setting(CP) This command sets the baud rate for the communications port (Com Port), data length, parity bit, and stop bit for use in communications with the host. STX Node No. 1 2 Port No. Baud rate ACK time ETX BCC Command Port Baud Data Parit Stop BCC code No. rate length y bit bit Enabled NAC out K "CP" /Disable d 2 1 1 1 1 1 1 1 1 1 1 Specify the port number that you want to change in decimal.
5-7 Setting Command 5-7 STX 1 Node No. Retry Command Response Port Baud Data Parity Stop BCC ACK Time ETX BCC flag code code: No. rate length bit bit Enabled NACK out "CP" "00" /Disabled 2 1 Response code: Port No. Baud rate Data length Parity bit Stop bit BCC Enabled/Disabled ACK/NACK Timeout 2 2 1 1 1 1 1 1 1 1 1 1 00: Normal completion For other Response Codes, refer to Response Code List. Indicates the number corresponding to the specified terminal resistance.
5-7 Setting Command 5-7 5-7-8 Communications Type Setting (CT) This command selects whether COM1 will be used as RS-232C or RS-485. STX Node No. Command Commni ETX BCC code cations "CT" type 1 2 2 1 1 1 Specify the number corresponding to the communications type that you want to select. Specification range: 0, 1, * When “*” is specified, the Reader/Writer reads the current setting.
5-7 Setting Command 5-7 5-7-10 Antenna Changeover(AC) This command selects whether the receiving function of each antenna will be enabled or disabled. STX Node No. 1 2 Command Antenna ETX BCC code selection "AC" 2 1 1 1 Specify the number corresponding to how TX/RX ANT and RX ANT will be used. Setting range: 0 to 3, or * When “*” is specified, the Reader/Writer reads the current setting.
5-7 Setting Command 5-7 5-7-12 Offline Mode Setting (FL) This command selects whether the Reader/Writer will start in online mode or offline mode. When offline mode is selected, the Reader/Writer will perform EAS check independent of the host, and output a signal from the output port (OUT1) if the result exceeds the specified criterion. STX Node No.
5-7 Setting Command 5-7 5-7-13 Set Value Initialization (IS) If necessary, you can return all the settings to their factory settings. STX Node No. Command code "IS" 1 2 2 ETX BCC 1 1 STX Node No. 1 2 Retry Command flag code "IS" 1 Response code: "00" 2 Response code: 2 ETX BCC 1 1 00: Normal completion For other Response Codes, refer to SECTION 5-3-7 Response Code List. ・The factory defaults vary, depending on the software version.
5-7 Setting Command 5-7 5-7-15 Chip Operating Mode Switch (TY) This command changes the operating mode (ISO/I.CODE1) of the Reader/Writer. STX Node No.. Command code Tag ETX BCC type “TY” 1 2 2 Tag type 1 1 1 Specifies the mode. 0: I.CODE1 mode 1: ISO mode When the Operating Mode is set to "**," the Operating Mode currently set in the Reader/Writer will be read. STX Node No..
5-7 Setting Command 5-7 5-7-16 Duplicate Communication Protecting Function setting (MX) This command specifies the enabled/disabled state of the duplicate communication protecting function and the number of tables in the enabled state. When the function is enabled, the Tag is read only once at the execution of a command with FIFO Repeat (FR), Multiple Trigger, or Multiple Repeat (MR, UR [I.CODE1 mode]) options. Refer to SECTION 3-8 for the details of the function. STX Node No.
5-7 Setting Command 5-7 5-7-17 I/O Automatic Changeover setting (CA) This function alternately turns the output terminals (OUT3 and OUT4) ON and OFF for Multiple Repeat and EAS. Check commands every time the command is issued. This is used to switch multiple antennas automatically. Enable the function when a special antenna that requires this function is used. Otherwise, disable the function. STX Node No.
5-8 Other commands 5-8 5-8-1 Command Undefined Response When the Reader/Writer receives a command code which is not on the command list, the Reader/Writer returns the Command Undefined Response. STX 1 Node No..
5-9 Command Connection: I.CODE1 Mode only 5-9 This Command Connection works in I.CODE1 Mode Only, and does not support ISO Mode. A command connection function allows the Reader/Writer to perform a pair of read and write operations at a time by sending a command only once. Any of the following six commands can be paired. • Read (RD) This excludes Special Read.
5-9 Command Connection: I.CODE1 Mode only 5-9 The Following Combinations of Command Connections Are Possible.
SECTION 6 Startup and Full Operation 6-1 6-2 6-3 6-4 6-4-1 6-4-2 Error Types and Diagnostic Functions .............................................................. 6-2 Errors and Remedies .......................................................................................... 6-3 Maintenance and Inspection .............................................................................. 6-4 Troubleshooting ..................................................................................................
6-1 Error Types and Diagnostic Functions 6-1 The Reader/Writer performs a variety of self-diagnostic functions to reduce system downtime in case of an error. The errors detected by the Reader/Writer are categorized into fatal errors and nonfatal errors. Fatal Error If the Reader/Writer main unit or hardware fails, the CPU operation is interrupted and the ERROR LED is turned on or flashed. ● CPU error Detects the CPU operation error using the watch dog timer (W.D.T.
6-2 Errors and Remedies 6-2 The following are considered to be main causes of system breakdowns. • Noise Interference....................................... Take appropriate countermeasures against noise. • Failures in any of the external devices • Failures in the Reader/Writer • Failures in the Antenna Repairs are required. • Failures in the cable • Failures in any of the Tags • Others ■ Noise Interference No.
6-3 Maintenance and Inspection 6-3 The V720 Series must be inspected on a daily or regular basis so that the functions of the V720 Series can be used in good condition. The V720 Series consists of semiconductors that last almost indefinitely. The following malfunctions may, however, result due to the operating environment and conditions. (1) (2) (3) (4) Element deterioration due to overvoltage or overcurrent. Element deterioration due to continuous stress caused by high ambient temperature.
6-4 Troubleshooting 6-4 6-4-1 Check Flowchart Use the following main check flowchart to determine the cause of the error.
6-4 Troubleshooting 6-4 ■ System connections check flowchart Start Are the connectors and cables connected properly? NO Connect the connector/cable properly. YES Is the specified voltage applied or current supplied? NO Apply the specified voltage or supply the specified current. YES Is Reset input ON? NO NO Is the RUN LED lit? Turn OFF Reset i t NO The Reader/Writer may have failed. YES Is COMM LED flashing? YES Cancel the Offline setting.
6-4 Troubleshooting 6-4 ■ Host communications Check Flowchart Start Issue TS Command from the host. The lit NORML LED or ERR LED is turned off. NO YES Are the communication conditions, command frame, node ID OK? NO The response has been received. NO Specify the correct communication settings and node ID. YES YES Error response 7C Are the connector’s pin assignments for the communication cables OK? NO Correct the pin assignments of the connectors.
6-4 Troubleshooting 6-4 ■ Communications Check Flowchart Start Issue Write Command in Single Trigger mode. The lit NORML LED or ERR LED is turned off. NO YES The response has been received. NO YES Is the response normal? NO YES Response Code 7C YES NO OK Refer to section 6-4-2 Check Items for Each Response Code. The Reader/Writer may have failed.
6-4 Troubleshooting 6-4 ■ External Environment Check Flowchart Start Are the operating conditions working well? NO Refer to section 6-3 Maintenance and Inspection. NO Refer to section 6-2 Errors and Remedies.
6-4 Troubleshooting 6-4 6-4-2 Check Items for Each Response Code Response Code (Nonresponding state) “10” “11” “12” “13” “14” “18” “70” “71” “72” “79” “7A” “7C” “7E” （“IC”） Primary check items ・Are the communication conditions set for the host and the Reader/Writer matched? Transmission rate, data length, stop bit length, parity (even, odd, none) ・Is the control code (STX/ETX) transmitted properly? ・Are the command node No. and Reader/Writer node No.
SECTION 7 Reference Data 7-1 Turn Around Time and Communication Time........................................................ 7-2 7-1-1 Communication time in I.CODE1 mode...................................................................7-2 7-1-2 ISO mode - Communication time of I.CODE SLI chip ............................................7-4 7-1-3 Turn Around Time (TAT) Calculation Method .........................................................7-6 7-2 Calculating the speed of the Tag........................
7-1 Turn Around Time and Communication Time 7-1 In the V720-series Reader/Writer, actual communications with a Tag are performed by reading or writing four-byte data per page. • The following chart specifies the TAT (turn-around time) and actual communications time. • The actual communications time in the following chart is the time required for communications between the Antenna and Tag, not including communications with the host.
7-1 Turn Around Time and Communication Time 7-1 ： ・ The provided TAT graph data shows an example in which the V720S-BC5D4A Controller is used with the following communications specifications for host communications: Data is continuously sent with no space between characters, at a baud rate of 38,400 bps, in a data length of 7 bits with 1 start bit, 2 stop bits and even parity . The number of bytes in case ASCII are specified as the data code.
7-1 Turn Around Time and Communication Time 7-1 7-1-2 ISO mode - Communication time of I.
7-1 Turn Around Time and Communication Time 7-1 （2）Communication time in The communication time when the commands with multiple access options are used varies depending on operating conditions. Those conditions Multiple modes: include the number of bytes, as well as the number of Tags in the communication area. The mean values in consideration of these conditions are shown in the table below. Example of Multiple Access communication time: I.
7-2 Calculating the speed of the Tag 7-2 When communicating with a Tag in motion, select Auto or Repeat for the communications method. The maximum speed at which the Tag can travel can be obtained easily, using the formula below. Max. traveling speed = D (travel distance in communications area) T (communications time) x Safety factor (0.5) Calculate D from the communications area drawing between the Antenna and the Tag or from the actual measurement.
SECTION 8 Appendix Appendix 1 Appendix 2 Accessories .................................................................................................... 8-2 JIS8 Code Table (ASCII Code Table) ...........................................................
Appendix 1 Accessories Appendix 1 Accessories No. Name Model Quantit y 1) Mounting plate (already attached to the Reader/Writer) - 2 2) I/O connector plug NJW-2010-PM10 from Nanaboshi Electric Mfg. Co., Ltd. １ 3) Ferrite core ZCAT3035-1330 from TDK 1 ＜Description＞ 1) Mounting plate (already attached to the Reader/Writer) Secure the Reader/Writer by using four M6 screws to .
Appendix 2 JIS8 Code Table (ASCII Code Table) High Order b8 - b5 0000 0001 0010 0011 0100 0101 0110 0111 0 1 2 3 4 5 6 7 (SP) 0 @ P ` p Low Order b4 - b1 Colum Row 0000 0 NUL TC7(DLE) 0001 1 TC1(SOH) DC1 ! 1 A Q a q 0010 2 TC2(STX) DC2 " 2 B R b r 0011 3 TC3(ETX) DC3 # 3 C S c s 0100 4 TC4(EOT) DC4 $ 4 D T d t 0101 5 TC5(NEQ ) TC8(NAK ) % 5 E U e 0110 6 TC6(ACK) TC9(SYN) & 6 F V f v 0111 7 BEL TC10(ETB ) ' 7 G
Revision History A manual revision code appears as a suffix to the catalog number on the front cover of the manual. SRFM- 002A Revision code The following table outlines the changes made to the manual during each revision. Page numbers refer to the previous version.
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