Feig Electronic OBID i-scan ID ISC.ANT.MUX User manual

MANUAL
final
public (B)
2008-01-07
H30701-3e-ID-B
OBI
D
i-scan
®
Communication FU
Communication Function Unit
Reader FU
(Function Unit)
Function Unit Commands

OBID i-scan®Manual Communication FU
FEIG ELECTRONIC GmbH Page 2 of 27 H30701-3e-ID-B
Note
©Copyright 2003-2005 by
FEIG ELECTRONIC GmbH
Lange Strasse 4
D-35781 Weilburg-Waldhausen
Tel.: [phone]
http://www.feig.de
With the edition of this document, all previous editions become void. Indications made in this manual may be
changed without previous notice.
Copying of this document, and giving it to others and the use or communication of the contents thereof are
forbidden without express authority. Offenders are liable to the payment of damages. All rights are reserved
in the event of the grant of a patent or the registration of a utility model or design.
Composition of the information in this document has been done to the best of our knowledge. FEIG
ELECTRONIC GmbH does not guarantee the correctness and completeness of the details given in this
manual and may not be held liable for damages ensuing from incorrect or incomplete information. Since,
despite all our efforts, errors may not be completely avoided, we are always grateful for your useful tips.
The instructions given in this manual are based on advantageous boundary conditions. FEIG ELECTRONIC
GmbH does not give any guarantee promise for perfect function in cross environments.
FEIG ELECTRONIC GmbH assumes no responsibility for the use of any information contained in this
document and makes no representation that they free of patent infringement. FEIG ELECTRONIC GmbH
does not convey any license under its patent rights nor the rights of others.
OBID i-scan® is registered trademark of FEIG ELECTRONIC GmbH.
General information's regarding this document
•If bits within one byte are filled with "-", these bit spaces are reserved for future extensions or
for internal testing- and manufacturing-functions. These bit spaces must not be changed, as this
may cause faulty operation of the reader.
•The following figure formats are used:
0...9: for decimal figures
0x00...0xFF: for hexadecimal figures,
b0...1 for binary figures.
•The hexadecimal value in brackets "[ ]" marks a control byte (command).

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Contents
1. Communication between Reader and Function Unit 5
2. Antenna Multiplexer ID ISC.ANT.MUX 7
2.1. System Description of the Multiplexer..............................................................................7
2.1.1. Configuration using one Input........................................................................................8
2.1.2. Configuration using both Inputs.....................................................................................9
2.1.3. Configuration with cascaded Multiplexers ....................................................................10
2.1.4. Multiplexer Address Setting.........................................................................................11
2.2. Commands for MUX Control ............................................................................................12
2.2.1. [0xDF]: Get Firmware Version.....................................................................................12
2.2.2. [0xDE]: CPU-Reset......................................................................................................13
2.2.3. [0xDD]: Select Channel ...............................................................................................13
2.2.4. [0xDC]: Detect .............................................................................................................14
3. Antenna Tuner ID ISC.DAT 15
3.1. System Description of the Antenna Tuner......................................................................15
3.1.1. Configuration with one Antenna...................................................................................15
3.1.2. Configuration with multiple Antennas ..........................................................................16
3.1.2.1. Configuration with a Power Splitter .................................................................16
3.1.2.2. Configuration with a Multiplexer ......................................................................17
3.1.3. Setting Antenna Tuner Addresses...............................................................................17
3.2. Commands for Tuner Control ..........................................................................................18
3.2.1. [0xC0]: Get Firmware Version .....................................................................................18
3.2.2. [0xC1]: CPU-Reset......................................................................................................19
3.2.3. [0xC2]: Set Capacities.................................................................................................19
3.2.4. [0xC3]: Get Antenna-Values........................................................................................20
3.2.5. [0xC4]: Set Outputs .....................................................................................................21
3.2.6. [0xC5]: ReTuning.........................................................................................................22
3.2.7. [0xC6]: Start-Tuning.....................................................................................................22
3.2.8. [0xC8]: Store Settings..................................................................................................23

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3.2.9. [0xC9]: Detect..............................................................................................................23
3.2.10. [0xCA]: Set Address ..................................................................................................24
3.2.11. [0xCB]: Set Mode......................................................................................................24
APPENDIX 25
APPENDIX A: Index STATUS ...................................................................................................25
APPENDIX B: Index Control Bytes..........................................................................................26
APPENDIX C: Protocol on Host Interface ...............................................................................27

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1. Communication between Reader and Function Unit
The function unit has an interface for communication with the reader. The communication takes
place trough the cable connection between the reader and the function unit. The function unit can
be controlled by means of the protocols described further below. Control of the function unit is pos-
sible either directly by the reader or by the application using commands from the host to the
reader.
Since communication and control of the function unit is accomplished using the antenna connec-
tion on the reader, no additional connection between reader and function unit or host and function
unit is required.
Figure 1 shows a system consisting of a host, e.g. a PC, the reader and the function unit:
Figure 1: System with one Function Unit
It is possible to connect multiple function units an a cascading arrangement. (see Figure 2).
Figure 2: System with more than one Function Unit
Reader
Host
Function
Unit 2
Function
Unit 3
Function
Unit 1
Function
Unit 4
Reader Function
Unit
Host

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In one example (see. Figure 3) there is a system with three function units. One function unit is a
multiplexer (MUX1). Two other function units, two antenna tuner (DAT2), are connected to the mul-
tiplexer.
Figure 3: System with three Function Units
1see 2. Antenna Multiplexer ID ISC.ANT.MUX
2see 3. Antenna Tuner ID ISC.DAT
Trans-
ponder
Trans-
ponder
Reader
Host
Antenna
Tuner 1
(DAT)
Antenna
Tuner 2
(DAT)
Multiplexer
(MUX)

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2. Antenna Multiplexer ID ISC.ANT.MUX
2.1. System Description of the Multiplexer
The ID ISC.ANT.MUX multiplexer can communicate with a reader. This means that no additional
cabling beyond the HF connection (coaxial cable) is needed to control the multiplexer.
The multiplexer has two inputs (IN1 and IN2) and eight outputs (OUT1-8) (see Figure 4).
Communication, i.e., control of the multiplexer takes place exclusively on input IN1.
Figure 4: Multiplexer
Each output can be assigned to one of the two inputs. Only one output can be active per input. The
procedure for assigning the outputs is described in the installation guide for the ID ISC.ANT.MUX
multiplexer (M30201-xde-ID-B). Figure 5 shows two common configurations.
Figure 5: Configuration Examples for Assigning Outputs on IN1 and IN2
Additional multiplexers can be connected to the outputs of any multiplexer to increase the number
of channels. Here the multiplexers must be addressed for controlling the respective units.
Addressing of the multiplexers is described in greater detail in section 2.1.4. Multiplexer Address
Setting.
Below are several examples which demonstrate the possibilities for a multiplexer.
OUT 1 - 8
Multiplexer (MUX)
IN1 IN2
IN1
OUT1-8
IN1 IN2
OUT1-4 OUT5-8

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2.1.1. Configuration using one Input
Figure 6 shows a configuration with one multiplexer and three antennas.
Figure 6: Multiplexer with three Antennas
The individual antennas can be switched by the reader over the HF line using protocols. Only one
output can be active at a time.
The protocols always contain the address of the multiplexer to be activated. This means that even
when using only one multiplexer, it must be addressed also (see 2.1.4. Multiplexer Address
Setting).
Reader
MUX

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2.1.2. Configuration using both Inputs
Figure 7 shows a configuration with two gates consisting of base antenna (B) and complementary
antenna (C).
Figure 7: Multiplexer with two Antenna Gates
The base antennas are connected to input IN1, and the complementary antennas to IN2. The
reverse is not possible, since protocols from the reader can only be received on IN1.
The corresponding gate outputs (e.g., output OUT1 on base antenna Gate 1 and output OUT2
complementary antenna Gate 1) are switched simultaneously. Only one gate can be active at a
time.
The protocols always contain the address of the multiplexer to be activated. This means that even
when using only one multiplexer, it must be addressed also (see 2.1.4. Multiplexer Address
Setting).
Reader
MUX
BCBC

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2.1.3. Configuration with cascaded Multiplexers
Figure 8 shows a configuration with cascaded multiplexers.
Figure 8: Configuration with cascaded Multiplexers
In this configuration multiplexers are cascaded one behind the other. Since each multiplexer can
have only one active output at a time, it is only possible to activate the multiplexers on the switched
branches. It is not possible to activate all multiplexers at the same time.
The protocols always contain the address of the multiplexer to be activated (see 2.1.4. Multiplexer
Address Setting).
Reader
MUX
MUX MUX MUX
MUX
Level 3
Level 2
Level 1

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2.1.4. Multiplexer Address Setting
The multiplexer address is set using DIP switches. Here you set the level on which the multiplexer
is located. Figure 9 shows an example for a configuration with three levels. Only DIP switches 3
and 4 are shown here.
Figure 9: Setting the Levels using DIP Switches
Since only one multiplexer output can be active at a time, it is also possible to communicate with
only one multiplexer on a level.
For DIP switch settings see installation guide for ID ISC.ANT.MUX (M30201-xde-ID-B).
Level 3
Level 2
Level 1
Reader
MUX
MUXMUX
MUXMUX MUX
ON
3 4
ON
3 4
ON
3 4

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2.2. Commands for MUX Control
2.2.1. [0xDF]: Get Firmware Version
This protocol can be used to read the firmware version and status of the antenna multiplexer.
Host →MUX CMD Data
[0xDF] MUX-Adr1
0x02 8 bits 0xFE 8 bits
Host ←MUX Data
STATUS2SW-Rev SW-Type HW-Rev DIP reserved
0x00 8 bits 16 bits 8 bits 8 bits 8 bits 16 bits
SW-Rev:
MUX firmware revision
main revision sub revision
8 bits 8 bits
SW-Type:
Software-Type: 0x0A ID ISCANTMUX (10)
HW-Rev:
Hardware-Revision
DIP:
DIP switch setting on multiplexer
1see 2.1.4. Multiplexer Address Setting
2see APPENDIX A: Index STATUS

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2.2.2. [0xDE]: CPU-Reset
This protocol is used to perform a CPU reset on the multiplexer.
Host →MUX CMD Data
[0xDE] MUX-Adr1
0x02 8 bits 0xFE 8 bits
Host ←MUX Data
STATUS2
0x00 8 bits
2.2.3. [0xDD]: Select Channel
This protocol is used to set the output channel OUT1-8 on the multiplexer.
Host →MUX CMD Data
[0xDD] MUX-Adr3OutCh1 OutCh2
0x02 8 bits 0xFE 8 bits 8 bits 8 bits
Host ←MUX Data
STATUS4
0x00 8 bits
OutCh1:
Output Channel for IN1: 0x00 to 0x08
OutCh2:
Output Channel for IN2: 0x00 to 0x08
Settings for the individual channels greater than 0x08 or the same setting for both channels are
rejected and acknowledged with STATUS 0x11 (Parameter Range Error).
A setting of 0x00 overwrites the current channel setting.
1see 2.1.4. Multiplexer Address Setting
2see APPENDIX A: Index STATUS
3see 2.1.4. Multiplexer Address Setting
4see APPENDIX A: Index STATUS

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2.2.4. [0xDC]: Detect
This protocol is used to query the address and DIP switch setting, i.e., the set mode of the
multiplexer.
Host →MUX CMD Data
[0xDC] MUX-Adr1
0x02 8 bits 0xFE 8 bits
Host ←MUX Data
STATUS2
0x00 8 bits
1see 2.1.4. Multiplexer Address Setting
2see APPENDIX A: Index STATUS

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3. Antenna Tuner ID ISC.DAT
3.1. System Description of the Antenna Tuner
The ID ISC.DAT antenna tuner can communicate with a reader. This means no additional
connection besides the HF connection (coax cable) is required in order to control the multiplexer.
Power for the antenna tuner is also provided over this connection.
In addition to the tuning and calibrating capability for an RFID antenna, the antenna tuner also
makes it possible to disconnect the antenna tuned circuit.
Figure 10: antenna tuner
3.1.1. Configuration with one Antenna
Figure 11 shows a configuration using one antenna.
Figure 11: configuration using one antenna
antenna loop
antenna tuner (DAT)
X1
Reader DAT

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3.1.2. Configuration with multiple Antennas
When the configuration consists of multiple antennas and the DAT antenna tuner, it is possible to
operate the antennas either simultaneously or alternately. Simultaneous operation can be
implemented for example use a power splitter and alternating operation using a multiplexer.
3.1.2.1. Configuration with a Power Splitter
Configuration with a power splitter involves at least two antennas being operated simultaneously.
In this case the antenna tuners must have different addresses. Figure 12 shows a configuration
using two antennas connected to the Reader through a power splitter. The antenna tuners have
their own addresses.
Figure 12: Configuration with a Power Splitter
Reader
Power
Splitter
DAT
Adr. 1 DAT Adr. 2

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3.1.2.2. Configuration with a Multiplexer
In multiplexed configuration there will never be two antennas active simultaneously. In this case
the antenna tuners may all have the same address. Figure 13 shows a configuration using three
antennas connected to the Reader through a multiplexer. The antenna tuners all have the same
address 1.
Figure 13: Configuration with a multiplexer
3.1.3. Setting Antenna Tuner Addresses
The address is set using „Set Address“(see 3.2.10. [0xCA]: Set Address). The factory default
address setting for the antenna tuners is 1.
Reader
Multiplexer
DAT
Adr. 1 DAT Adr. 1 DAT Adr. 1

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3.2. Commands for Tuner Control
3.2.1. [0xC0]: Get Firmware Version
This protocol can be used to read the firmware version and status of the antenna tuner.
Host →Tuner CMD Data
[0xC0] Tuner-Adr1
0x02 8 bits 0xFE 8 bits
Host ←Tuner Data
STATUS2SW-Rev SW-Type HW-Rev reserved
0x00 8 bits 16 bits 8 bits 8 bits 24 bits
SW-Rev:
Revision von Tuner-Firmware
main revison sub revision
8 bits 8 bits
SW-Type:
Software-Type: 0x0B ID ISCDAT (11)
HW-Rev:
Hardware-Revision
1see 3.1. System Description of the Antenna Tuner
2see APPENDIX A: Index STATUS

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3.2.2. [0xC1]: CPU-Reset
This protocol is used to perform a CPU reset on the antenna tuner. After this protocol the Tuner
cannot receive protocols for the next 200 ms.
Host →Tuner CMD Data
[0xC1] Tuner-Adr1
0x02 8 bits 0xFE 8 bits
Host ←Tuner Data
STATUS2
0x00 8 bits
3.2.3. [0xC2]: Set Capacities
This protocol is used to switch the capacities C1 and C2 of the antenna tuner. To get the current
capacity settings send [0xC3] “Get Antenna Values” to the tuner.
Host →Tuner CMD Data
[0xC2] Tuner-Adr3C1 C2
0x02 8 bits 0xFE 8 bits 8 bits 8 bits
Host ←Tuner Data
STATUS4
0x00 8 bits
C1: Value for C1: 0x00 bis 0x7F
C2: Value for C2: 0x00 bis 0x7F
Settings for the capacities C1 or C2 greater than 0x7F are rejected and acknowledged with
STATUS 0x11 (Parameter Range Error).
A setting of 0x00 overwrites the current capacity setting.
1see 3.1. System Description of the Antenna Tuner
2see APPENDIX A: Index STATUS
3see 3.1. System Description of the Antenna Tuner
4see APPENDIX A: Index STATUS

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3.2.4. [0xC3]: Get Antenna-Values
This protocol is used to read the settings of the capacities C1 and C2 and the measured status of
the antenna impedance. Reasonable data can be received 250ms after power up of the Tuner (e.g.
after the Tuner is selected by a multiplexer).
Host →Tuner CMD Data
[0xC3] Tuner-Adr1
0x02 8 bits 0xFE 8 bits
Host ←Tuner Data
STATUS2Value C1 Value C2 RPhi TU-ST
0x00 8 bits 8 bits 8 bits 16 bits 8 bits 8 bits
Value C1:
Value of C1 (0x00 – 0x7F)
Value C2:
Value of C2 (0x00 – 0x7F)
R: Difference between Rref and Rmess
most significant least significant
8 bits 8 bits
Phi: Value of Phase ϕ(0x00 – 0x5A)
1see 3.1. System Description of the Antenna Tuner
2see APPENDIX A: Index STATUS