RFID. LF Training. Installation and Set-up. J.A.G 7 March, 2008 Texas Instruments Proprietary Information 1
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1 RFID LF Training Installation and Set-up J.A.G 7 March, 2008 Texas Instruments Proprietary Information 1
2 S2000 Readers Radio Frequency Module (RFM) Control Module (CTL) Series 2000 Reader 3/28/2008 TI Proprietary Information 2
3 S2000 Readers Control Module (RI-CTL-MB2B) Remote Tuning Module (RI-ACC-008B) Power RF Module (RI-RFM-007B) Remote Antenna RF Module (RI-RFM-008B) 3/28/2008 TI Proprietary Information 3
4 S2000 Control Module The CTL Module is available with RS-232 or RS-422/485 communications. RI-CTL-MB2A.. RS-232 RI-CTL-MB6A.. RS-422/485 We will be introducing a new control module 1H 2008 which can be recognized by the 2 nd red LED and the USB connector. RI-CTL-MB2B-30.. RS-232 RI-CTL-MB6B-30.. RS-422/485 3/28/2008 TI Proprietary Information 4
5 S2000 Control Module (MB2A/MB6A) 3/28/2008 TI Proprietary Information 5
6 S2000 Control Module (MB2B/MB6B) Power Input Open Collector Outputs USB Port Input/Output Ports Serial Comms Input/Output Ports Input/RESET Synchronization RXSS/ Tuning LED Outputs 3/28/2008 TI Proprietary Information 6
7 S251B DAT Reader Series S2500 Reader (RI-STU-251B) 3/28/2008 TI Proprietary Information 7
8 S251B DAT Reader DC Power General Purpose I/O Sync Carrier Phase Power + - Fuse General Purpose Input/ Output Synchronisation Power Range Setting ON ON RF Power Output Adj. EMI/ Sync. Level Adj. Reader S251B ON EMI TX Active Read O.K. O.C. - I/O RS232 RS422/ L O.K. L ON Antenna Tuning RS422 RS485 DAT Antenna 1 2 Open Collector I/Os RS232 Interfaces RS422 / RS385 Antenna 3/28/2008 TI Proprietary Information 8
9 Power Supply Requirements ( all readers) Must be a regulated linear supply (Only switch mode power supplies that have an operating frequency > 200 khz can be used) Must have a current rating high enough to supply the peak demand that occurs during the 50 ms transmit period. (150 ma for the MicroReader, 1.5 A for the RFM-104B and 2A for the RFM- 007B/8B) The power supply must be located close to the reader (avoid long DC supply lines). Route power and control lines separately. Power and antenna cables must be routed separately. 3/28/2008 TI Proprietary Information 9
10 Powering the S2000 REGULATED SUPPLY RFM-007B: 7 ~ 24 VDC RFM-008B: 7 ~ 24 VDC VSP GNDP VDC GND VCC2 VCC ST22 JP6 SW1 POWERING USING A SINGLE SUPPLY BATTERY BACK-UP FOR MEMORY (IF REQUIRED) + - VCC3 GND ST22 JP6 SW1 3/28/2008 TI Proprietary Information 10
11 Powering the S2500 REGULATED LINEAR SUPPLY 10 ~ 24 VDC 1 2 O.C. - I/O Power + - Fuse General Purpose Input/ Output ON Reader S251B RANGE BRIDGE Power Range Setting Must be a regulated linear supply (Only switch mode power supplies that have an operating frequency > 200 khz can be used) Set the range bridge to suit your supply 10 ~ 15 V (-20 to 70 ºC). Pins 1 & 2 15 ~ 24 V (-20 to 70 ºC*)... Pins 1 & 2 18 ~ 24 V (-20 to 70 ºC). Pins 2 & 3 * If the peak current >0.9A, the limit is 40ºC (100ºF) The RF Output potentiometer can be used to reduce or increase the power (The potentiometer is set to the mid-point during production). Note Small high Q antennas (e.g. RI-ANT-S02C, RI-ANT-G02E) may exceed the limits at 24V and integrators should reduce the input voltage accordingly. 3/28/2008 TI Proprietary Information 11
12 Battery Backup for the S2500 If you wish to support the contents of the reader s memory during power down, a standard 3.7V battery can be used. Inside the reader box, on the main board, next to the EEProm are 4 holes. Solder in a 4-pin connector and attached the battery + to pin 1 (Square pad), Ground goes to pin 4 3V + V_BAT GND E 2 Prom 3/28/2008 TI Proprietary Information 12
13 Serial Communications RS232 Most common - available on most PCs Limited distance (5 m) Affected by noise RS422 (Differential signals) 4 wires, 2 Tx, 2 Rx Distances > 1Km Good noise resistance Noise spike seen as signal Rx+ Rx- Tx+ Tx- Tx Rx GND RS485 2 wires. Distances > 1Km The line is turned around for Tx and Rx Good noise resistance Noise spike not seen as signal Noise spike not seen as signal Tx/Rx+ Tx/Rx- 3/28/2008 TI Proprietary Information 13
14 RS-232 Communications JP6 Three wire alternative 9 WAY "D" Connector S RXD DTR GND TXD DSR ST21 JP5 RS-232 is point-to-point only. It is not very noise immune and intended for short distances (5m) 3/28/2008 TI Proprietary Information 14
15 RS-422 Communications JP6 S JP2 JP4 JP5 RX+ RS422 Host or Network RX- GND TX+ TX ST21 JP2 RS422 Interface Termination (Only 1 reader will have JP2 in) RS-422 is also Multi-drop Master + 8 nodes. It is very noise immune and intended for long distances >1.2 kilometres 3/28/2008 TI Proprietary Information 15
16 RS-485 Communications JP6 S JP2 JP4 JP5 RS484 Network TX+/ RX+ TX-/ RX- GND ST21 JP2 JP5 JP4 RS485 Interface Termination (Only 1 reader will have JP2 in) RS-485 is multi-drop (Master + 31 nodes). It is very noise immune and intended for long distances > 1 km. It only uses 2 wires that have to be turned around between Tx and Rx. This can cause problems with some RS-232 to RS-485 converters 3/28/2008 TI Proprietary Information 16
17 RS-485 Communications B & B electronics Model 485SD9R 3/28/2008 TI Proprietary Information 17
18 USB Communications Pin 1 5 Vdc Pin 2 Data Pin 3 Data + Pin 4 not connected Pin 5 GND S1 JP6 USB JP11 Jumper 11 must be in for USB communications USB drivers are available at: 3/28/2008 TI Proprietary Information 18
19 RFID USB Connection The USB interface is only enabled when jumper 11 is in position and requires a USB A to mini-usb B cable Pin 1 5 Vdc Pin 2 Data Pin 3 Data + Pin 4 not connected Pin 5 GND Jumper 11 USB selected J.A.G 7 March, 2008 Texas Instruments Proprietary Information 19
20 RFID USB Driver Installation Before the USB interface can be used the drivers must be installed. Go to: and download: J.A.G 7 March, 2008 Texas Instruments Proprietary Information 20
21 RFID USB Driver Installation 4 step process 1. Download and execute TUSBWINVCP_WDF-Single_Driver_v1-2.exe from swrc09.zip to create a folder for the software at: C:\Program Files \Texas Instruments\TUSB3410 Single Driver installer\disk 1 2. Move to DISK 1 and execute setup.exe to pre-install the drivers. 3. Connect the USB to the PC. Windows will recognize the TUSB3410 Device. Use Install the software Automatically option 4. Windows will recognize the USB- Serial Port Use Install the software Automatically Option J.A.G 7 March, 2008 Texas Instruments Proprietary Information 21
22 S251B Communications Reader S251B EMI TX Active Read O.K. ON O.C. - I/O RS RXD DTR GND TXD DSR STANDARD RS232 3 WIRE RS /28/2008 TI Proprietary Information 22
23 RS-422 Communications Reader S251B EMI TX Active Read O.K. L O.K. L Antenna Tuning ON ON O.C. - I/O RS232 RS422/ 485 RS422 RS485 DAT Antenna RXD + RXD - TXD + TXD - 222NF RXD + RXD - GND TXD - TXD + DCE Note: Comms Port pin-outs are the same for both S2000 & S2510 readers AMPLICON RS422/RS232 CONVERTOR 3/28/2008 TI Proprietary Information 23
24 RS-422 Communications EMI TX Active Read O.K. L O.K. L Antenna Tuning EMI TX Active Read O.K. L O.K. L Antenna Tuning RS232 RS422/ 485 ON RS422 RS485 DAT Antenna RS232 RS422/ 485 ON RS422 RS485 DAT Antenna RX-B RX-A TX-B TX-A GND Amplicon PC 48AT Card 3/28/2008 TI Proprietary Information 24
25 RS-485 Communications EMI TX Active Read O.K. L O.K. L Antenna Tuning EMI TX Active Read O.K. L O.K. L Antenna Tuning RS232 RS422/ 485 ON RS422 RS485 DAT Antenna RS232 RS422/ 485 ON RS422 RS485 DAT Antenna TX/ RX - TX/RX + GND Amplicon PC 48AT Card 3/28/2008 TI Proprietary Information 25
26 Standard Antennas G04E G01E G02E S01C 3/28/2008 TI Proprietary Information 26
27 Standard Antennas The G01E and G02E antennas come with 1m (39 ) cables. These can be extended using low resistance cable (e.g. 2.5 mm Oxygen Free Hi-Fi cable) by a further 2m without significant reduction in performance and they should still be capable of being tuned to resonance. The leads of these cables are made from Litze wire to achieve maximum performance. This wire comprises 120 individually insulated (lacquered) wires and should the connector break off, the lacquer should be removed by heating before sweating on a new terminal. (crimping on a terminal will result in low performance because of the high impedance) The G04E antenna has a slightly lower Inductance (26 µh) to allow you to fit a 4m long lead (of low resistance wire) and still be within tuning range. We do not advise extending the antenna cable more than necessary, as reduced performance will result from the increased resistance, the extra inductance could prevent successful tuning and the antenna will be more susceptible to noise 3/28/2008 TI Proprietary Information 27
28 Effect of Antenna Size/ Noise on Reading Range 3/28/2008 TI Proprietary Information 28
29 Magnetic Field Pattern 3/28/2008 TI Proprietary Information 29
30 Magnetic Field Patterns Stick Antenna Gate Antenna 3/28/2008 TI Proprietary Information 30
31 Antenna Tuning The Antenna and its cable are all part of a INDUCTANCE/ CAPACITANCE circuit that has to be tuned to resonance to get best performance. The formula for this circuit is: ƒ (res) = 1 2π LC INDUCTANCE CAPACITANCE This can be done by changing the Inductance (ferrite cored inductor) or Changing the Capacitance (capacitance jumpers ) Note: Changing the antenna cable length or metal near the antenna will also change the tuning 3/28/2008 TI Proprietary Information 31
32 Antenna Tuning Jumpers all in / L Inductance too Low Antenna close to metal? Increase size of loop Make antenna narrower Add capacitance in Parallel Jumpers all out / L Inductance too high Extension added to antenna tail? Reduce size of loop Make antenna more square Add capacitance in Series 3/28/2008 TI Proprietary Information 32
33 Antenna Tuning The Antenna Tuning Indicator can be used both with Capacitive or Inductive tuning It indicates the direction to turn the ferrite core or whether to add or remove capacitance jumpers Will also adjust the noise level threshold used by the Wireless synchronisation circuit Switch off other readers when doing both these operations 3/28/2008 TI Proprietary Information 33
34 Extending the Reader s Tuning Range Inductance (µh) Capacitance (µf) Inductance (µh) Capacitance (µf) /28/2008 TI Proprietary Information 34
35 Extended Antenna Inductance Tuning High voltage (1000+) polypropylene capacitors required The maximum voltage for these capacitors falls off at RF frequencies V.eff (~) 2000 VDC/ 500 VAC pf 4700 pf µf 20 Hz , , khz 1,000,000 3/28/2008 TI Proprietary Information 35
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