Gotting HG 98780-A Operating and installation instructions

Device Description HG 98780-A





















Positioning and
Identification Antenna
— 13.56 MHz, one-dimensional —
HG 98780-A
Englisch, Revision 09 Developed by: W.M.
Date: 30.11.2012 Author(s): RAD
Götting KG, Celler Str. 5, D-31275 Lehrte - Röddensen (Germany), Tel.: [phone] / 80 96 -0,
Fax: [phone] / 80 96 -80, eMail: [email protected], Internet: www.goetting.de

Contents HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 2
Contents
1 Introduction.......................................................................5
1.1 Accessories ............................................................................ 5
1.2 Function ................................................................................. 6
1.3 Positioning Pulse .................................................................... 6
2 Mounting...........................................................................8
2.1 Transponders ......................................................................... 8
2.1.1 Dimensions and Specifications....................................................... 8
2.1.2 Mounting Instructions .................................................................... 8
2.2 Antenna HG 98780ZA/YA/XA/WA............................................ 9
2.3 Interface HG 06150ZA/XA (optional) ..................................... 10
3 Installation / Commissioning ............................................11
4 Components and Operation .............................................12
4.1 Operation Conditions ............................................................ 12
4.2 Positioning Antenna on the Vehicle / Crane ........................... 12
4.2.1 HG 98780ZA/WA (with CAN-Bus and RS422 / RS232 interfaces).. 12
4.2.1.1 Connection plan of the 12-pin socket....................................... 13
4.2.2 HG 98760YA/XA (with Profibus and RS232/RS422)...................... 14
4.2.2.1 Dimensions............................................................................. 14
4.2.2.2 Pin Allocations ........................................................................ 15
4.2.3 Switch-on Characteristics ............................................................ 16
4.2.4 Interfaces .................................................................................... 16
4.2.4.1 Serial (RS 422 / RS 232)......................................................... 16
4.2.4.1.1 List of system data to be output ................................ 16
4.2.4.1.2 List of commands ..................................................... 19
4.2.4.2 System Monitor....................................................................... 20
4.2.4.3 Positioning Pulse .................................................................... 20
4.2.4.4 CAN Bus................................................................................. 20
4.2.4.4.1 Description............................................................... 20
4.2.4.4.2 CAN Message Object 1 (Transmission Object).......... 20
4.2.4.4.3 CAN Message Object 2 (A Identifier; Transmission
Object)......................................................................21
4.2.4.4.4 CAN Message Object 3 (D Identifier; Transmission
Object)......................................................................21
4.2.4.4.5 CAN Message Object 4 (Reference Transponder; Recep-
tion Object) ...............................................................21
4.2.4.5 Profibus.................................................................................. 22
4.2.4.5.1 Profibus Input Bytes ................................................. 22
4.2.4.6 Output Bytes........................................................................... 23
4.2.5 Software download ...................................................................... 23

Contents HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 3
4.3 Accessories (optional)........................................................... 24
4.3.1 Serial/parallel Converter HG 06150ZA/XA .................................... 24
5 Software .........................................................................25
5.1 Terminal program ................................................................. 25
5.1.1 How to find HyperTerminal and add it to the system ..................... 25
5.1.2 Parameter presettings ................................................................. 26
5.2 System monitor..................................................................... 27
5.2.1 How to start the monitor program ................................................. 27
5.2.1.1 Procedure Monitor only ........................................................... 27
5.2.1.2 Procedures 3964R/transparent................................................ 27
5.2.2 Operating the monitor program .................................................... 28
5.2.2.1 Main menu.............................................................................. 29
5.2.2.2 (T)ime & Code ........................................................................ 31
5.2.2.3 (S)erial Output ........................................................................ 32
5.2.2.4 C(A)N Parameters .................................................................. 34
5.2.2.5 P(r)ofibus-Parameters............................................................. 35
5.2.2.6 CS(V) ..................................................................................... 36
5.2.2.7 (B)oot Load............................................................................. 36
5.3 Software Update (Antenna Software) .................................... 37
5.3.1 Installation of the Program for Software Update ........................... 37
5.3.2 Software Update.......................................................................... 38
6 Maintenance ...................................................................41
7 Troubleshooting ..............................................................42
8 Technical Data ................................................................43
8.1 Antenna................................................................................ 43
8.2 Parallel converter ................................................................. 45
9 Appendix.........................................................................46
A Effective Antenna Area .................................................................... 46
B Positioning Accuracy........................................................................ 49
C Attenuation of the Reception Level caused by Metal ....................... 51
D Influence of Water............................................................................ 52
E Mounting next to Massive Metal Structures ..................................... 53
F Procedure 3964R............................................................................. 53
F.1 Data direction antenna -> PLC.................................................................53
F.2 Data direction PLC -> Antenna ................................................................54
G Procedure „transparent“................................................................... 55
G.1 Data direction antenna -> PLC.................................................................55
G.2 Data direction PLC -> antenna.................................................................55
H GSD File (Antenna HG 98780XA/YA with Profibus) ........................ 55

Contents HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 4
10 Handbook Conventions....................................................56
11 List of Figures .................................................................57
12 List of Tables ..................................................................59
13 Index ..............................................................................60
14 Copyright and Terms of Liability ......................................61
14.1 Copyright.............................................................................. 61
14.2 Exclusion of Liability ............................................................. 61
14.3 Trade Marks and Company Names........................................ 61

Introduction HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 5
1 Introduction
The described antennas are especially suited for outdoor applications, as the elec-
tronic units are sealed within the antenna cases. All important settings, adjustable val-
ues and software updates can be effected via a serial interface.
Unlike Transponder Positioning System S_I13933 (128 kHz operating frequency),
Transponder Positioning Antenna HG 98780-A is operating at 13.56 MHz. This en-
sures sufficient frequency separation to interference sources such as, e.g., drives,
power converters and switching power supply.
Both systems supply a similarly structured output format in which additional system in-
formation can be configured by the user. This information can, for example, be saved
in a visualization system and enables statements about the condition and availability/
accessibility of the transponders and antennas. This system description applies to de-
vices with the firmware 98780B2 version 1.06 and higher.
1.1 Accessories
The following accessories are available for the one-dimensional Transponder Position-
ing Reader HG 98780-A:
Figure 1 Components
1. Transponder reader with preamplifier and interpreter HG 98780-A with different
interfaces (see Table 1 on page 6)
2. Transponder HG 70661 (on the pavement)
3. Optional interface HG 06150-A serial/parallel converter
4. Optional desktop reading and programming unit HG 81830VA (not shown in pic-
ture)




Introduction HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 6
1.2 Function
As the antenna passes over the transponder, it energizes the latter with an energy field
of 13.56 MHz. The transponder returns its code through frequency modulation to the
antenna. An additional coil generates the positioning pulse. The interpreter which is
integrated within the antenna decodes the transponder code.
Furthermore several antenna parameters, e. g. current consumption and supply volt-
age, are measured and, if desired, added to the serial output protocol.
The serial signal is made available via potentially separated RS 422 or RS 232 inter-
faces. In addition, the positioning pulse is dc-insulated. Furthermore, CAN Bus or Pro-
fibus interfaces are provided optionally.
As an option, the serial signal can be converted into a 16 bit parallel output signal
(24 Volts switched) for the code within an external interface device. This interface de-
vice is suited for mounting rail (top-hat rail) installation and should be installed in a
place protected from any environmental influences.
1.3 Positioning Pulse
For the generation of the positioning pulse, it is necessary that the following precondi-
tions are met:
-The reception voltage S (refer to Table 18 on page 29) must exceed the set
threshold for Level for Positioning (refer to section 5.2.2.2 on page 31).
-A transponder code must be decoded without error.
-The measured voltage X must fall below a certain threshold (refer to Table 18 on
page 29).
If the above listed preconditions are met, a positioning pulse with changeable duration
is generated. For the generation of a new positioning pulse it is essential that the re-
ception voltage S has fallen below the threshold set for Threshold for Decoding
(refer to section 5.2.2.2 on page 31) first.
Thus only one pulse per transponder crossing is possible. Therefore, if a vehicle/crane
stops above the transponder after the positioning pulse was generated and then
changes its direction of travel, no renewed positioning pulse is generated during the
center crossing!
HG 98780-A
Variant Profibus CAN Bus RS 422 RS 232
ZA X X
YA X X
XA X X
WA X X
Table 1 Overview of G 98780 variants

Introduction HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 7
Positioning Accuracy
As the field compensation for the corresponding measuring coil is not infinitely sharp
and is also depending on the reading height (refer to Appendix, Section A on page
46), the positioning pulse is generated at different but reproducible locations, depend-
ing on the direction of travel. Since the antenna is not aware of its direction of travel,
but depends on the physical effect of the field strength, only the vehicle/crane control
can carry out the direction-depending compensation. The appendix, section B on
page 49 shows the locations of the positioning pulse related to the X and Y coordinates
and the reading height.

Mounting HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 8
2Mounting
2.1 Transponders
2.1.1 Dimensions and Specifications
The maximum reading distance for all transponders can only be achieved when the
minimum distance to metal surfaces is maintained. It is recommended to maintain the
minimum distances within the metal-free area (Figure 2). The impact on positioning ac-
curacy and range also depends on the size and distance of metal parts.
Figure 2 Minimum iron-free area around Puck Transponder HG 70661
As rule of thumb it can be said that if the metal-free area behind the transponder has
to be at least of the same range as the reading distance between transponder and an-
tenna. The reception of the transponder signal will be largely unattenuated (also refer
to Table 24 on page 51). It is essential, that the transponder does not dip into the
meshs/loops of steel reinforcement grids. Single metal rods, on the other hand,
hardly have any influence on the performance.
2.1.2 Mounting Instructions
The Transponders may be mounted on even ground using a metal screw and a wash-
er. The maximum fastening torque is not allowed to exceed 4 Nm. The diameter of the
metal washer should not be max. 18 mm.
Screw
Washer
Transponder
approx. 200 mm
approx. 100 mm
Metal-free area

Mounting HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 9
2.2 Antenna HG 98780ZA/YA/XA/WA
The antenna has four predrilled holes for four M5 screws.
ATTENTION! Make sure the antenna is mounted correctly with regards to its
reading side!
Figure 3 Mounting the antenna
In order to prevent any adverse effects on the system:
-The space above and around the antenna should be metal-free.
-Do not operate the reading antenna while the reading side is located directly
above a metal surface, as this would mistune the antenna severely in such a way
that the power consumption of the output stage would increase considerably.
-Perfect transponder readings are only guaranteed if the transponders are placed
within max. ±4 cm tolerance from the center line of the antenna! Outside these
limits, the transponder readings become less reliable due to decreasing signal
levels.
NOTE! Whenever the antenna is operated at temperatures below 0oC, it
is necessary to use the integrated heater! As the warm-up time
with heater at -20oC surrounding temperature is approx. 1 hour,
the heater should be connected to a stand-by power supply.

Mounting HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 10
2.3 Interface HG 06150ZA/XA (optional)
The optional interface has to be mounted in a climated enclosure on a mounting bar
with the following connections:
Figure 4 Outline of the interface mounting bar case
Interface connection plan
1Code Bit 1 (lowest Bit) 15 Code Bit 15
2Code Bit 2 16 Code Bit 16 (highest Bit)
3Code Bit 3 17 Data Ready
4Code Bit 4 18 Data Valid
5Code Bit 5
6Code Bit 6
7Code Bit 7
8Code Bit 8
9Code Bit 9
10 Code Bit 10 Version ZA Version XA
11 Code Bit 11 20 Rx+ (RS 422 input) RxD (RS232 Input)
12 Code Bit 12 21 Rx- (RS 422 input) not connected
13 Code Bit 13 37 +24 V operating voltage
14 Code Bit 14 38 GND ground
Table 2 Interface connection plan

Installation / Commissioning HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 11
3 Installation / Commissioning
NOTE! Check the operating voltage before connecting! The cable
should not lie directly beside power supply cables.
Connect all necessary cables. For the next commissioning steps, connect a laptop
with the serial interface of the antenna. Antenna variants with RS422 interface
(HG 98780ZA/XA) require an appropriate interface converter. This interface converter
is not included in the scope of supply of this system. For further information, please
refer to the introduction in chapter 5 on page 25. Then start the monitor program as
described in section 5.2 on page 27.
Default values In default the system uses the values of the file 1
(Mon3964r.txt; as listed in part 5.2.1 on page 27) with 9,600
Baud. Please keep in mind that another user could have
changed these values.
1. Move a transponder into reception range.
The voltage Sshould increase significantly. The code should be detected imme-
diately and the number of readings has to be continuously counted up to 65535.
When moving the transponder in driving direction over the center axis of the
antenna, a positioning pulse should be generated.
2. For setting the decoding thresholds (refer to section 5.2.2.2 „(T)ime & Code“ on
page 31) it is useful, to record a complete test run along the transponder track.
Antennas HG 98780ZA and HG 98780WA offer for this function the use of the
serial interface (section 5.2.2.6 „CS(V)“ on page 36) or the CAN Bus Message
Object 3 (section 4.2.4.4.4 on page 21 or 5.2.2.4 „C(A)N Parameters“ on page
34).
Antennas HG 98780YA and HG 98780XA offer for the same function the serial
interface (refer to section 5.2.2.6 on page 36) or the Profibus interface (refer to
section 5.2.2.5 on page 35). When using the Profibus interface, the necessary
parameters from the 16 byte data block are System Status, Code and U-
Summe.
Provided that the test run did not reveal any problems, changed parameters may be
saved and the monitor program may be terminated. Changing certain parameters re-
quires a complete system reset (switching the antenna off and on again), as described
in the corresponding section for the monitor program (section 5.2). This procedure en-
sures that the system is commissioned correctly.

Components and Operation HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 12
4 Components and Operation
4.1 Operation Conditions
Reference marks are the Puck Transponders HG 70660. The transponder data is con-
figurated to 32 Bit (Read/Write). Range and positioning accuracy of the system are in-
fluenced by:
-Steel reinforcements located around or behind the Transponder, refer to section C
on page 51 in the appendix.
-Metal structures around the antenna.
-For influences of snow, ice and water refer to section D on page 52 in the appen-
dix.
The following environmental conditions have no effect on the system:
-Oil, tar, earth, dirt, etc.
-Massive metal structures on one side of the Transponder or antenna, e.g. rails.
Refer to section E on page 53 in the appendix.
4.2 Positioning Antenna on the Vehicle / Crane
4.2.1 HG 98780ZA/WA (with CAN-Bus and RS422 / RS232 inter-
faces)
Figure 5 Positioning antenna HG 98760ZA/WA
The antenna and the interpreter electronics are housed in a 360 x 160 x 91 mm cas-
ing. The reading area is the upper side of the casing. The cover is located on top of
the casing, the 12-pin socket (Schaltbau M3) points in the vehicle’s direction of travel.
The interpreter is mounted in a completely sealed unit, along with the heating. The
connecter is a 12-pin screw-in socket (Schaltbau, type M3) with gold plated pins.

Components and Operation HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 13
Figure 6 Outline antenna HG 98780ZA/WA (with casing dimensions)
4.2.1.1 Connection plan of the 12-pin socket
The allocation of contacts is as follows:
Contact
Description
HG 98780ZA HG 98780WA
1+24 V (antenna)
2GND (antenna)
3+24 V (heating)
4GND (heating)
5+RX (RS 422) Rx (RS232)
6 -RX (RS 422) n.c.
7+TX (RS 422) Tx (RS232)
8-TX (RS 422) n.c.
9+20 mA positioning pulse
10 -20 mA positioning pulse
11 CAN+
12 CAN-
PE signal ground
Table 3 Connection plan of the 12-pin antenna socket (CAN bus)
Direction of travel

Components and Operation HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 14
Both positioning connections are separately and not internally connected to +24 V or
GND, as a strict voltaic separation is essential for some of the systems. For safety rea-
sons, a 20 mA current limitation has been implemented in the antenna for these out-
puts. In case a 24 V output is required, contact No. 9 may be connected to +24 V and
contact No. 10 may be connected to GND via a 1 KOhm resistor.
4.2.2 HG 98760YA/XA (with Profibus and RS232/RS422)
4.2.2.1 Dimensions
Figure 7 Outline of antenna HG 98780YA/XA (including housing dimensions and pic-
ture of the line termination resistance)
Antenna and interpreting electronics are housed in a 360 x 160 x 91 mm casing. The
reading side of the antenna is the top of the casing with the casing cover. The three 12
pin built-in sockets (M23; gold-plated contacts) are facing in the direction of travel. For
each antenna, a correspondingly suitable line termination resistance is included in the
scope of supply.
Inside the casing are the completely sealed antenna electronics and the heater. For
connecting the antenna, the sockets X1 and X2 (Profibus) or the connecter X3 (Posi-
Puls, RS232, power supply) are being used. The integrated LED indicates the Profibus
status Data exchange.
For each antenna a connection set will be supplied, including 3 connectors, the termi-
nating resistor and an inserter. The particular cable diameters have to be indicated
on order.
View
from top
(casing cap)
View from
underneath
(mounting drill holes)
Terminating resistor

Components and Operation HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 15
4.2.2.2 Pin Allocations
The Profibus version of the antenna offers two 12 pin sockets for the bus function as
well as one 12 pin connecter for the power supply.
Contact Allocation
1signal ground
2line A
3n. c.
4line B
5n. c.
6n. c.
7+24 V DC (antenna)
8GND (antenna)
9shield
10 n. c.
11 n. c.
12 RTS
housing shield
Table 4 Pin allocation of the 12 pin Profibus connectors (in duplicate)
Contact
Allocation
HG 98780YA HG 98780XA
1+24 V DC (antenna)
2GND (antenna)
3+24 V DC / 2 A (heater)
4GND (heater)
5Rx (RS232) +RX (RS 422)
6n. c. -RX (RS 422)
7Tx (RS232) +TX (RS 422)
8n. c. -TX (RS 422)
Table 5 Pin allocation of the 12 pin connector for the antenna power supply
(Profibus version) (Part 1 of 2)

Components and Operation HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 16
4.2.3 Switch-on Characteristics
Once the supply voltage has been applied, the antenna requires 10 s until it reacts to
data input, or outputs data protocols. During these 10 s, a software download may be
started (also refer to section 4.2.5 on page 23).
4.2.4 Interfaces
4.2.4.1 Serial (RS 422 / RS 232)
The serial output may be configured in several ways. The transmission rate is adjust-
able between 9600 and 19200 Baud, the output protocol may be chosen as “transpar-
ent“ or “3964R“. Apart from that, the content of the telegrams is configurable, as the
user may choose from a list of parameters.
Serial commands are used for activating a system monitor. The crossing of the anten-
na´s center axis in direction of travel, is shown by the digital positioning output. Its
transmission time is adjustable in blocks of milliseconds. In addition, it may be re-
duced to one impulse per crossing.
4.2.4.1.1 List of system data to be output
A telegram consists of max. 15 bytes. The minimum update rate at 9600 Baud is then
calculated as follows
Figure 8 Formula: minimum update rate
As the transmission is binary, it is possible - when using the 3964R procedure - that
further (DLE) characters are added by this procedure. All multiple-byte variables are
output either with the highest byte or the lowest byte first (adjustable)!
The 8 bit check character is only output when using the transparent protocol. It then
includes the start character. The check character (transparent protocol), cannot be re-
moved from the data block. It is a matter of configuration, whether data telegrams are
output permanently according to the set update rate or only during the period, when
a transponder is within the field.
9+20 mA Posi
10 -20 mA Posi
11 n. c.
12 signal ground
housing shield
Contact
Allocation
HG 98780YA HG 98780XA
Table 5 Pin allocation of the 12 pin connector for the antenna power supply
(Profibus version) (Part 2 of 2)
15 Byte
Telegram
-------------------------11 Bit
Byte
------------9600Bit
s
------- 17 2 ms
Telegram
-------------------------=

Components and Operation HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 17
Table listing the data words of a telegram of 15 byte length:
Byte # Length Priority Type Description
11 Byte 0x01 Unsigned char Start character ASCII-061: „=“
2,3,4,5 4 Byte 0x02 Unsigned long 32 Bit of the Transponder code
6,7 2 Byte 0x04 Unsigned int Voltage induced by the Transponder within the
frame antenna in Samples
81 Byte 0x08 Unsigned char Supply voltage for the antenna [x 100 mV]
91 Byte 0x10 Unsigned char Power consumption [x 10 mA]
10 1 Byte 0x20 Signed char Temperature within the antenna [oC]
11,12 2 Byte 0x40 Unsigned int Number of readings during the latest transpon-
der crossing
13,14 2 Byte 0x80 Unsigned int System status in binary encoding
(15) 1 Byte Unsigned char Check character (EXOR function over all char-
acters), only for transparent protocol!
Table 6 Data words in a telegram of 15 (14) byte length

Components and Operation HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 18
The following table shows a list of the binary codes used to describe the system status
(for bytes # 13 and 14 from Table 3):
*) These bits are deleted as soon as the transponder has left the
antenna field.
Example: Status 0x0600
stands for TRANS_IN_FIELD and CODE_OK
The status 0x0002 may also arise during ordinary transponder crossings, if the code
transmission is aborted due to decreasing power output level. The message 0x0100
(REF_TRANS_ON) enables checking whether transmission of the corresponding
switch-off command has been forgotten (in this case, it is no longer possible to read
runway transponders correctly).
Priority Name Description
0x0001 HW_ERROR Hardware error
0x0002 CODE_CRC_ERR Reception of transponder code with CRC error
0x0004
0x0008
0x0010
0x0020 PARAM_CRC_ER Parameter block no longer save
0x0040
0x0080 F_ERROR Transmission oscillator not operating at set fre-
quency
0x0100 REF_TRANS_ON Note: reference transponder is activated.
0x0200 TRANS_IN_FIELD Transponder within antenna field *)
0x0400 CODE_OK Decoded code correct *)
0x0800
0x1000 POSIPULS Transponder has crossed the center of the
antenna *)
0x2000
0x4000
0x8000
Table 7 Possible system status messages

Components and Operation HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 19
4.2.4.1.2 List of commands
One command telegram always consists of four bytes, including the actual command
and the parameters. When using the procedure ‘transparent’ (also refer to Appendix,
section G on page 55) it is, in addition, necessary to transfer one start character and
a check sum (XOR operation of all bytes including the start character).
5 commands are defined:
No. Description Procedure Start
Char.
Command
Byte Parameter Check Sum
1
Switching into mon-
itor mode
(described in sec-
tion 5.2 „System
monitor“ on page
27)
3964R
HEX 4D164F16 4E164916
ASCII MO NI
trans-
parent
HEX 3D16 4D164F16 4E164916 3816
ASCII =MO NI 8
2Switch off refer-
ence transponder
3964R
HEX 52165416 30163016
ASCII RT 00
trans-
parent
HEX 3D16 52165416 30163016 3B16
ASCII =RT 00 ;
3Switch on refer-
ence transponder
3964R
HEX 52165416 31163116
ASCII RT 11
trans-
parent
HEX 3D16 52165416 31163116 3B16
ASCII =RT 11 ;
4
Supply of the 16
programmable
lower bits of the
transponder code
3964R
HEX 50164C16 Code in the for-
mat tt16tt16
For code „1234“
e. g. 12163416
ASCII PL
trans-
parent
HEX 3D16 50164C16 0716
ASCII =PL
5
Supply of the 16
programmable
higher bits of the
transponder code
and start of the pro-
gramming proce-
dure
3964R
HEX 50164816 Code in the for-
mat tt16tt16
For code „1234“
e. g. 12163416
ASCII PH
trans-
parent
HEX 3D16 50164816 0316
ASCII =PH
Table 8 List of System Commands

Components and Operation HG 98780-A
Englisch, Revision 09, Date: 30.11.2012 20
Further information regarding command no. ...
1. The monitor mode should not be used during normal operation (e. g. from an
PLC), as the following output is not according to a transparent or 3964R protocol
but only suitable for display on a VT52-terminal and used for the alteration of
parameters.
2. An activated reference transponder is described by setting the corresponding
bit in the system status “0x0100“. 
Please note that while the reference transponder is activated, the runway tran-
sponders cannot be processed unambiguously, i.e. they are either oppressed or
their position is inaccurate.
3. The successful deactivation of the reference transponder is described by delet-
ing the “0x0100“ bit from the system status.
4.2.4.2 System Monitor
In monitor mode, the system is configurable via a menu. Please refer to section 5.2
„System monitor“ on page 27.
4.2.4.3 Positioning Pulse
The digital positioning output indicates the crossing of the center line of the antenna
in direction of travel (x direction). Its duration is adjustable within a millisecond pattern.
4.2.4.4 CAN Bus
4.2.4.4.1 Description
Either Basic- or Full-CAN mode are configurable. The system monitor is used for set-
ting the CAN parameters (also refer to section 5.2.2.4 on page 34). The internal CAN
module is based on the CAN specifications V2.0 part B. It is possible to transmit either
standard or extended frames (adjustable). The system monitor is used for setting the
bit timing as well as the identifier.
It is possible to output 3 different CAN Message Objects and receive 1. Depending on
the configuration, it is possible to distinguish between permanently output telegrams
according to the set update rate or telegrams output only while a transponder is within
the field. In addition, remote operation is selectable.
The objects are activated in the CAN menu by input of an address different from 0 (also
refer to section 5.2.2.4 on page 34).
4.2.4.4.2 CAN Message Object 1 (Transmission Object)
Byte # Length Type Description
1,2 2 Byte Unsigned int System status according to Table 7 on
page 18
3,4,5,6 4 Byte Unsigned long 32 Bit transponder code
7,8 2 Byte Unsigned int Number of code readings of the last
transponder crossings
Table 9 Structure of the CAN Message Object 1