Gotting HG G-71910-C Operating and installation instructions

Transponder Antenna
HG G-71910-C
1-dimensional, indoor
English, Revision 03 Date: 17.09.2019 Dev. by: WM/AK Author(s): RAD
Device Description HG G-71910-C
Transponder
Innovation through Guidance www.goetting-agv.com

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
2Overview
© 2019 Götting KG, errors and modifications reserved.
The Götting KG in D-31275 Lehrte has a certified quality management
system according to ISO 9001.

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
3
Table of Contents
Contents
1 About this Document........................................................................ 5
1.1 Warning Notices.................................................................................................................... 5
1.2 Symbols ................................................................................................................................... 6
2 Introduction....................................................................................... 7
2.1 System Components............................................................................................................ 7
2.2 Function ................................................................................................................................... 8
3 Mounting ........................................................................................... 9
3.1 Metal-free Areas Around Transponder and Antenna ................................................. 9
3.1.1 Smaller Metallic Structures That do Not Form a Loop ......................................... 9
3.1.2 Closed Metallic Structures or Smaller Metallic Structures That
Form Loops ......................................................................................................................10
3.2 Transponder .........................................................................................................................10
3.3 Antenna HG 71910-C ........................................................................................................11
4 Installation / Commissioning ......................................................... 12
5 Components and Operation ........................................................... 16
5.1 Components in the Ground: Transponders ................................................................. 16
5.2 Transponder Antenna (Versions)....................................................................................16
5.2.1 Plug / Pin assignment ...................................................................................................17
5.2.1.1 Connection plan of the 7-pin-socket (HG 71910ZC) .......................................17
5.2.1.2 Connection plan of the alternative 26-pin flat band round ca-
ble / of the SUB-D connector (HG G-71910YC/XC/VC) ..................................18
5.2.1.3 Connection Plan of the 6 Pin Hirschmann Connector (HG G-
71910UC)......................................................................................................................18
5.2.2 Interfaces ..........................................................................................................................18
5.2.2.1 RS 232 (all Variants)..................................................................................................18
5.2.2.1.1 List of System Data that may be Output ........................................................ 19
5.2.2.1.2 List of System Commands ..................................................................................20
5.2.2.1.3 Programming of Transponders (serial) ...........................................................21
5.2.2.1.4 System Monitor ......................................................................................................21
5.2.2.2 Positioning Pulse (all Variants) .............................................................................. 21
5.2.2.3 CAN (Version HG G-71910ZC)................................................................................21
5.2.2.3.1 Description...............................................................................................................21
5.2.2.3.2 CAN Message Object 1 (Send-Object) ............................................................ 22
5.2.2.3.3 CAN Message Object 2 (Send-Object) ............................................................ 22
5.2.2.3.4 CAN Message Object 3 (Send-Object) ............................................................ 22
5.2.2.3.5 CAN Message Object 4 (Reception-Object, Transponder Pro-
gramming)................................................................................................................22
5.2.2.4 CANopen®....................................................................................................................23
5.2.2.4.1 Defaults.....................................................................................................................23
5.2.2.4.2 Description of the Process Data Objects (PDO) ........................................... 23
5.2.2.4.3 PDO_1 .......................................................................................................................23
5.2.2.4.4 PDO_2 .......................................................................................................................24
5.2.2.4.5 Heartbeat..................................................................................................................24
5.2.2.4.6 Node-Guarding .......................................................................................................24
5.2.2.4.7 Description Of The Service Data Objects (SDOs) ........................................ 24
5.2.2.4.8 Object Directory .....................................................................................................25
5.2.2.4.9 Explanation of the Entries CANopen® Directory ......................................... 27
5.2.2.5 Parallel Port (Versions HG 71910YC/XC/VC) .....................................................32
6 Software .......................................................................................... 33

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
4Table of Contents
6.1 Terminal Program ...............................................................................................................33
6.2 Parameter Presettings .......................................................................................................33
6.3 System Monitor ...................................................................................................................34
6.3.1 How to start the monitor program ............................................................................34
6.3.1.1 Procedure 3964R or transparent ...........................................................................34
6.3.1.2 Text Files for the Procedures..................................................................................34
6.3.2 How to work with the monitor program..................................................................35
6.3.2.1 Main Menu....................................................................................................................36
6.3.2.2 (C)alculation Coefficients.........................................................................................37
6.3.2.3 (S)erial Output .............................................................................................................37
6.3.2.4 (T)ime & Code..............................................................................................................38
6.3.2.5 CAN.................................................................................................................................40
6.3.2.5.1 Basic C(A)N-Parameter ........................................................................................40
6.3.2.5.2 CAN Terminating Resistor ...................................................................................41
6.3.2.5.3 CA(N) open ...............................................................................................................41
6.3.2.5.4 EDS File .....................................................................................................................42
6.3.2.6 CS(V) Output................................................................................................................42
6.3.2.7 (O)ut-Test......................................................................................................................42
6.3.2.8 (W)rite Transponder...................................................................................................42
6.4 Firmware Update.................................................................................................................43
6.4.1 Installation of the Flash Program...............................................................................43
6.4.2 Using the Flash Program ..............................................................................................43
7 Trouble Shooting.............................................................................44
8 Technical Data.................................................................................45
9 Appendix ..........................................................................................47
9.1 Physical Basics ....................................................................................................................47
9.1.1 Field Arrangement of the Energy Field ....................................................................47
9.1.2 Field Arrangement of the Transponder’s Reverse Signal ..................................47
9.1.3 Induced Voltages in Sum and Difference Antenna ..............................................48
9.2 Procedure 3964R ................................................................................................................48
0.1 Data direction antenna -> PLC .......................................................................................................................48
9.2.1 Data direction PLC -> Antenna...................................................................................49
9.3 Procedure „transparent“ ...................................................................................................49
9.3.1 Data direction antenna -> PLC ...................................................................................49
9.3.2 Data direction SPS -> antenna ...................................................................................50
9.4 Parallel Output .....................................................................................................................50
9.5 Positioning Pulse.................................................................................................................50
9.6 Variants of the Transponder Antenna (Casings / Dimensions) .............................51
9.7 Timing-Diagramm of the Parallel Interface ................................................................53
10 List of Figures..................................................................................54
11 List of Tables ...................................................................................56
12 Index ................................................................................................58
13 Copyright and Terms of Liability.................................................... 59
13.1 Copyright ...............................................................................................................................59
13.2 Exclusion of Liability ..........................................................................................................59
13.3 Trade Marks and Company Names ...............................................................................59

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
5
About this Document – Chapter 1
1About this Document
For you to be able to use your product simply and safely this device description uses
consistent warning notices, symbols, terms and abbreviations. Those are described
in the following sections.
1.1 Warning Notices
In this device description warning notices appear before sequences of actions that
may lead to damage to persons or property. The listed actions for the danger preven-
tion have to be observed.
Warning notices have the following structure:
The warning symbol (warning triangle) indicates danger to life or risk of injury.
The signal word indicates the severity of the danger.
The paragraph kind or source of the danger names the kind or source of the
danger.
The paragraph consequences describes the consequences of not observing
the warning notice.
The paragraphs for danger prevention explain, how to avoid the danger.
The signal words have the following meanings:
SIGNAL WORD
Kind or source of the danger
Consequences
Danger prevention
Table 1 Hazard classification according to ANSI Z535.6-2006
Warning Symbol, Signal Word Meaning
DANGER
DANGER indicates a hazardous situation
which, if not avoided, will result in death or
serious injury.
WARNING
WARNING indicates a hazardous situation
which, if not avoided, could result in death or
serious injury.
CAUTION
CAUTION indicates a hazardous situation
which, if not avoided, could result in minor or
moderate injury.
NOTICE
NOTICE indicates property damage: The
product or the environment could be dam-
aged.

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
6Chapter 1 – About this Document
1.2 Symbols
In this device description the following symbols and formatting are used:
If this information is ignored,
the product may not be operated in an optimal way.
Indicates one or more links to the Internet.
–www.goetting.de/xxx
–www.goetting.de/yyy
Indicates tips for easier
operation of the product.
The check mark lists a requirement.
The arrow shows an action step.
The indentation shows the result of an action or an action sequence.
Program texts and variables are indicated through the use of a fixed width
font.
Menu items and parameters are shown in cursive characters.
Whenever the pressing of letter keys is required for program entries, the
required etter eys are indicated as such (for any programs of Götting KG
small and capital letters are equally working).

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
7
Introduction – Chapter 2
2Introduction
The described antenna is especially suited for vehicles in indoor areas. The electron-
ic units are not sealed within the antenna cases, but varnished. Therefore it is possi-
ble that all important settings and adjustable values are effected after manufactur-
ing. This leads to fair priced systems. Software updates can be effected via a serial
interface.
The one-dimensional antenna HG G-71910-C supplies the transponder code as
a parallel signal as well as a midpoint crossover pulse, generated by an exactly mea-
surable and reproducible phase alteration.
The transponders used in this system are HG G-71325 resp. HW DEV00095 (read /
write). These transponders are fair priced and especially suited for the applications
of this system (track guided or rail- mounted vehicles with fairly small reading dis-
tances). This manual refers to antennas with software version 1.43 or higher.
2.1 System Components
In addition to the positioning and identification antenna HG G-71910-C the following
components are available:
Figure 1 System Components
1. Transceiver antenna with preamplifier and interpreter HG 71910-C (shown
above is the version HG G-71910YC with a parallel interface)
2. Transponder HG G-71325 / HW DEV00095 (in the track)
3. Optional transponder programming device HG G-81830YA (not shown in pic-
ture)



Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
8Chapter 2 – Introduction
2.2 Function
As the antenna passes over the transponder, it energizes the latter with an energy
field of 128 kHz. So the transponder transmits his code at half of this frequency. The
transponder position in relation to the antenna surface is measured by a coil with ori-
entation in direction of travel.
The interpreter which is integrated within the antenna decodes the transponder
code. Each crossing of the coordinate axis in driving direction generates a position-
ing pulse with an adjustable duration.
The serial output signal is a non isolated RS 232. Alternatively it is possible to use a
CAN Bus. The positioning pulse is not galvanically separated but available as a +24 V
(20 mA) operational voltage switched output. Optional a 15 bit parallel output for the
code (24 Volt switched, non current limiting) can be effected.
Additionally transponders can be programmed. In order to do so the transponder has
to stay in the antenna field for a minimum of 30 ms after the programming has been
started.

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
9
Mounting – Chapter 3
3Mounting
3.1 Metal-free Areas Around Transponder and Antenna
Metal close to transponder and antenna influences the range and accuracy of the
reading system. We deal with the following cases:
1. Smaller metallic structures that do not form a loop.
2. Closed metallic structures or smaller metallic structures that form loops.
The following minimum distances apply.
3.1.1 Smaller Metallic Structures That do Not Form a Loop
Around the antenna, smaller metallic structures that do not form loops may violate
the metal-free space. They must have a minimum distance of 50 mm.
Figure 2 Metal-free space around the antenna for smaller metallic structures, top view
Metal-free area
100 mm 100 mm
100 mm
100 mm
50 mm
50 mm
50 mm 50 mm
Example: Metal strut
Example:
Metal plate
Antenna
Direction of travel

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
10 Chapter 3 – Mounting
3.1.2 Closed Metallic Structures or Smaller Metallic Structures That Form
Loops
The antenna can be mounted directly onto metal with its bottom. The following min-
imum distances for closed metallic and electrically conductive structures apply from
the cover on the reading side.
Figure 3 Metal-free space around antenna and transponder with closed metallic structures or
loops, side view (in the example: transponder in the roadway)
Power cables (e.g. for charging stations) must not be installed in this area around the
transponders, as any pulses could make code reading difficult or falsify the code!
3.2 Transponder
The maximum reading distance for all transponders can only be achieved when the
minimum distance to metal surfaces is maintained. To clarify the configuration, it is
essential to carry out tests!
As mentioned above, it is recommendable to maintain the minimum distances with-
in the metal-free area (section 3.1.2 above). The impact on positioning accuracy and
range also depends on the size and distance of metal parts.
Mounting possibilities for transponders:
On the road surface.
Flush in the carriageway with sealing compound.
The reading distance is the distance between the reading side of the antenna and
the top side of the transponder.
metal-free area
50 mm (Nominal Reading Height)
100 mm100 mm
100 mm
50 mm
Roadway
Vehicle
Antenna
Direction of travel
100 mm Cover

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
11
Mounting – Chapter 3
3.3 Antenna HG 71910-C
When mounting the antenna, first remove the cover. Inside there are four predrilled
holes for 4 M4 screws. The antenna can be mounted directly onto a metal surface
(e.g. the vehicle‘s underside).
Make sure that the antenna is mounted correctly with regard to its reading side!
Figure 4 Mounting possibilities for the antenna
In order to prevent any adverse effects on the system:
The space around the antenna should be metal-free, see section 3.1 on page 9.
Do not operate the reading antenna while the upper side (reading side) is
located directly above a metal surface, as this would de-tune the antenna
severely in such a way that the power consumption of the output stage would
increase considerably.
For an undisturbed operation of the transponder system it is essential that there
are no interfering signals in the frequency range of 64 ±4 kHz (e.g. pulsed
engines, etc)!
4 screws type M4
(not included in scope of supply)
Reading (facing transponder)
Mounting (facing e. g. vehicle)
Direction of travel

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
12 Chapter 4 – Installation / Commissioning
4Installation / Commissioning
Check the operating voltage before connecting! Although the RS 232 interface re-
acts largely insensitive to interferences, the cable should not lie directly beside pow-
er supply cables.
Connect all necessary cables. For the next commissioning steps connect a Laptop
with the antenna. Then start the monitor program as described in section 6.3 on
page 34.
Default values By default the system uses the values from the first file
(Mon3964r.txt; as listed in section 6.3.1 on page 34) at 9,600 Baud.Please keep
in mind, that another user might have changed those settings inside the antenna.
1. Move a transponder into reception range.
The voltage S should increase significantly. The code should be detected imme-
diately and the number of readings have to be continuously counted up to 255.
When moving the transponder in driving direction over the center axis of the
antenna, a positioning pulse should be generated.
2. Remove the transponder.
The voltage S should decrease to very small values if there is no transponder
within the field. The code display must disappear; the display of the number of
readings will be preserved. If this is not the case, there are interferences in the
frequency band of 64 kHz.
If no errors have occurred, exit the monitor program. Don’t forget to save altered val-
ues. If certain parameters have been altered, a system reset will be necessary
(switch off and reactivate the antenna) as mentioned in the corresponding sections
of the monitor program (described in section 6.3).
Afterwards it is recommended to log a full trip through the site. Depending on the
antenna variant there are different possibilities available to do so:
Parallel Interface (antenna versions V, X, Y)
Here the serial interface can be used for logging (see section 6.3.2.6 on page
42).
CAN-Bus (antenna version Z)
Here the serial interface (see section 6.3.2.6 on page 42) as well as the CAN-Bus
Message Object 3 (see section 5.2.2.3.4 on page 22) can be used for logging.
Serial Interface (antenna version U, Z)
Since the same serial interface is used for logging and user data output (version
Z only when the serial interface is chosen, see above), you have to operate the
vehicle in manual mode.

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
13
Installation / Commissioning – Chapter 4
The following diagrams show examples of logged system data:
Figure 5 Diagram: Commissioning Protocol / insignificant interference level; shown is the sum
voltage over the travelled distance
The above diagram shows the sum voltage (in units) over the travelled distance. The
noise is in this case approx. 50 units, the transponder signal approx. 950 units. The
transponder decoding is perfect, as also shown in the following diagram:
Figure 6 Diagram: Commissioning Protocol / undisturbed Transponder decoding
During each transponder crossing, the sum voltage increases initially. Once the
threshold Threshold for Decoding has been exceeded, the bit
TRANS_IN_FIELD is set. Following 4 x 8 ms (= 4 data points) the transponder
code is decoded. The duration depends on the setting for Number of Equal
Codes within the menu Time & Code. In this example, this parameter is = 2, i. e.
the newly received code is compared to two codes which were already received.
Once the center of the antenna has been crossed, the POSI Pulse is generated.
Its duration is adjustable. The bits TRANS_IN_FIELD and CODE_OK are deleted,
whenever the sum voltage falls below the value for Threshold for Decod-
ing. In the shown example there is spare time of 6 x 8 ms for the generation of the
POSI-Pulse. The velocity of crossing was 1.1 m/s (180 mm antenna length / (20
x 8 ms)
Low Interference Level
Undisturbed Transponder Decoding

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
14 Chapter 4 – Installation / Commissioning
The following diagrams show the influences of high interference levels on the an-
tenna performance.
Figure 7 Diagram: Commissioning Protocol / high interference level; shown is the sum voltage
over the traveled distance
The interference level reaches up to 300 units. At transponder 207 the noise is at
such a level that it even influences the transponder signal. As a result it takes 9 x
8 ms until the transponder 207 is decoded (see Figure 8 on page 14). For the slow
crossing speed 0.5 m/s [140 mm / (33 x 8 m/s)] it is still sufficient for generating a
POSI Pulse, but at high speed it would no longer be possible to decode this tran-
sponder with 3 m/s.
Figure 8 Diagram: Commissioning Protocol / jammed decoding (function still ensured)
The following diagram shows a case in which false POSI Pulses are generated
through wrong parameters for Threshold for Decoding and/or Threshold
for Positioning.
High Interference Level
Defective Decoding (function still available)

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
15
Installation / Commissioning – Chapter 4
Figure 9 Diagram: Commissioning protocol / false POSI Pulse generated through noise and
threshold set too low
For this example, the thresholds are set to 100 units. The bit TRANS_IN_FIELD is
permanently set. After a successful transponder decoding, initially a correct POSI
Pulse is generated. However, as the software does not realize that the transponder
leaves the antenna field, each zero crossing of the difference voltage (not shown in
the diagram) will generate another POSI Pulse.
False POSI Pulse generated by noise and threshold set too low

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
16 Chapter 5 – Components and Operation
5Components and Operation
5.1 Components in the Ground: Transponders
As reference markers transponders of the types HG G-71325 or HW DEV00095 can
be used. Please refer to the corresponding data sheets to get more information
about these transponders.
Range and accuracy of the system are influenced by:
any large metal pieces (sheets) on the ground
proximity of any floor reinforcement (see chapter 3 „Mounting“ on page 9, sec-
tion 3.2 „Transponder“ on page 10)
Inductive loops, as they are created e.g. by steel building mats have a great
influence. Individual metal poles have little effect. Those may be partly within
the metal-free area (see Figure 3 on page 10)
Cable with pulsed currents with spectral parts between 64 kHz ±4 kHz.
The following environmental conditions have no effect on the system:
Snow, ice, water
Oil, tar, earth, dirt, etc.
Code structure
The system decodes and outputs the entire code string of 20 bits; when using the
parallel interface only the 15 lowest bits are output. The data protection within the
transponders is done by line (of 3 bit each) and column parity. To achieve a better
data protection, it is therefore recommended to implement an additional code
check. The transmission duration for one complete telegram is 8 ms.
5.2 Transponder Antenna (Versions)
Figure 10 Positioning antenna HG G-71910-C (version HG 71910YC with parallel interface)
The antenna and interpreter electronics are housed in a 160 x 80 x 85 mm casing.
The reading area is the upper side of the housing. The cover is located on top of the
casing. The following table lists the available variants of the antenna with their re-
spective interfaces and cable connections:

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
17
Components and Operation – Chapter 5
Drawings of all variants can be found in section 9.6 on page 51.
Figure 11 Outline antenna HG G-71910-C (version HG G-71910YC with a parallel interface)
5.2.1 Plug / Pin assignment
5.2.1.1 Connection plan of the 7-pin-socket (HG 71910ZC)
The allocation of the contacts is as follows:
Table 2 Overview variants antenna HG G-71910-C
Variant Description
HG G-71910
ZC Serial interface and CAN-Bus on the narrow side of the
antenna (Binder female connector 723 series)
YC Parallel interface, cable entry on the narrow side of the
antenna (25-pol. SUB-D male connector)
XC Parallel interface, cable entry on the side of the antenna
(25-pol. SUB-D male connector)
VC Parallel interface, male connector on the narrow side of the
antenna (25-pol. SUB-D male connector)
UC Serial interface, cable entry on the narrow side of the antenna
(Hirschmann male connector GO 51 WF)
Table 3 HG G-71910ZC: Connection plan of the 7-pin Binder antenna socket
Contact Description
1 +24 V
2 GND
3 CAN H
4 CAN L
5 POSI
6 TxD (RS 232)
7 RxD (RS 232)
1
4
8
50
1
6
0
80
View from
underneath
(mounting drill holes)
24
Minimum 50mm
85
3
5
40
Possible Directions of Travel
Transponder

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
18 Chapter 5 – Components and Operation
5.2.1.2 Connection plan of the alternative 26-pin flat band round cable / of
the SUB-D connector (HG G-71910YC/XC/VC)
The metal parts of the Sub-D connector are connected to the shielding of the cable.
5.2.1.3 Connection Plan of the 6 Pin Hirschmann Connector (HG G-71910UC)
The allocation of the contacts is as follows:
Rx (RS232) and Tx (RS232) refer to the data direction as seen from the antenna!
5.2.2 Interfaces
5.2.2.1 RS 232 (all Variants)
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 either
„transparent“ or „3964 R“ (see also sections 9.3 on page 49 and 9.2 on page 48).
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.
Table 4 HG G-71910YC/XC/VC: Connection plan of the 26-pin flat band round cable / of the
SUB-D connector
Contact #
(SUB-D) Core # (cable) Description Contact # (SUB-D) Core # (cable) Description
1 1 Data Ready 14 2 D14
2 3 D13 15 4 D12
3 5 D11 16 6 D10
4 7 D9 17 8 D8
5 9 D7 18 10 D6
6 11 D5 19 12 D4
7 13 D3 20 14 D2
8 15 D1 21 16 D0
9 17 TxD (RS232) 22 18 RxD (RS232)
10 19 POSI 23 20 Nc
11 21 +24V 24 22 +24V
12 23 GND 25 24 GND
13 25 Chassis - 26 Chassis
Table 5 HG G-71910UC: Connection plan of the 6 pin Hirschmann connector
Contact Description
1 Shielding
2 +24 V
3 Rx (RS232)
4 Tx (RS232)
5 GND
Pos

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
19
Components and Operation – Chapter 5
5.2.2.1.1 List of System Data that may be Output
A telegram of the serial RS 232 output consists of max. 15 bytes. The minimum up-
date rate at 9,6 KB is then calculated as follows:
Figure 12 Formula: Minimum update rate
As the transmission is binary, it is possible – when using the 3964R procedure – to
add further (DLE) characters by this procedure.
All multiple- byte variables are output either with the highest byte or the lowest byte
first (adjustable)! The 8 bit check sum is only output when using the transparent pro-
tocol. It then includes the start character. The start character, as well as the check
sum (transparent protocol) cannot be removed from the data block.
The protocol is adjustable, irrespective of whether telegrams are output permanent-
ly by an adjustable update rate or whether one transponder is located within the
field.
Table listing the data words of a telegram of 14(15) byte length:
The following table shows a list of the binary codes used to describe the system sta-
tus (for bytes # 13 and 14 from Table 6):
Table 6 Data words in a telegram of 15 byte length (corresponding to 14 data byte)
Byte # Length Valency Type Description
1 1 Byte 0000.0001 unsigned char Start character ASCII-061: „=“
2,3 2 Byte 0000.0002 signed int Dummy value
4,5,6,7 2 Byte 0000.0004 unsigned long 32 Bit transponder code
8,9 2 Byte 0000.0008 unsigned int Voltage generated by the transpon-
der within the frame antenna in
samples
10,11 2 Byte 0000.0010 signed int Voltage generated by the transpon-
der within the difference antenna in
samples
12 1 Byte 0000.0020 unsigned char Number of code readings during
the latest transponder crossing
13,14 2 Byte 0000.0040 unsigned int System status in binary encoding
(15) 1 Byte unsigned char Check sum, only for transparent
protocol!!
Table 7 Possible system status / error messages (part 1 of 2)
Value Name Description
0001 DEC_HW_ERROR Decoder hardware error
0002 CODE_CRC_ERR Reception of transponder code with longitudinal parity
error
0004 CODE_PAR_ERR Reception of transponder code with cross parity error
0008 CODE_NIB_ERR Reception of RW transponder code with High- Nibble
error
0010 EEPROM_ERROR Parameter E² not addressable
0020 PARAM_CRC_ER Parameter block no longer safe
15 Byte
Telegram
--------------- 11 Bit
Byte
------- 9600Bit
s
----- 17 2 ms
Telegram
---------------,=

Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
20 Chapter 5 – Components and Operation
Example:
Error 0006 stands for CODE_CRC_ERR and CODE_PAR_ERR.
Errors 0002 and 0004 may also arise during ordinary transponder crossings, if the
code transmission is aborted due to decreasing power output level.
5.2.2.1.2 List of System Commands
A Command telegram always consists of four bytes, including the command itself,
its parameters and at last the check sum (XOR relation of all bytes with starting sign).
When choosing the procedure "transparent" (see appendix, section 9.3 on page 49)
a start sign has to be sent as well.
The monitor mode should not be used during normal operation (e.g. from a PLC) as
the following output is not carried out according to a transparent or 3964 R protocol
but only suitable for display on a VT 52- terminal and used for the manual alteration
of parameters.
There are 3 predefined commands:
0040
0080
0100 RW_TRANSPON-
DER
Transponder is writeable *)
0200 TRANS_IN_FIELD Transponder is detected *)
0400 CODE_OK Decoded code correct *)
0800 SEGMENT- A transponder is located under the connector / cable
side of the antenna
1000 POSIPULS Transponder has crossed the center of the antenna *)
2000
4000
8000 RESET Set after antenna is switched on *)
*) These bits are deleted when the transponder leaves the antenna field.
Table 7 Possible system status / error messages (part 2 of 2)
Value Name Description