Gotting HG 71450-A User manual

Device Description HG 71450-A





Positioning and Identification
Antenna
— RS232 —
HG 71450-A
English, Revision 02 Dev. by: D.F. / T.N. / W.M.
Date: 20.01.2015 Author(s): RAD / A.F. / L.S.
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 71450-A
English, Revision 02, Date: 20.01.2015 2
Contents
1 Identification Systems ...................................................... 4
1.1 Application Examples for the Automation................................. 4
1.2 ISystem Configuration............................................................. 5
1.3 Functional Description ............................................................ 5
1.3.1 General Functional Description ...................................................... 5
1.3.2 Reception Ranges and Function ....................................................6
1.3.3 Signals and Timing ........................................................................8
2 Components and Operation .............................................. 9
2.1 Components in the Ground (Transponders) ............................. 9
2.2 Identifying Antenna HG 71450 (RS 232) .................................. 9
2.2.1 Pin Allocation ............................................................................... 9
2.2.2 LEDs ........................................................................................... 10
2.2.3 Turn on Characteristics............................................................... 10
2.2.4 General Information..................................................................... 10
2.2.5 RS 232 Interface ........................................................................ 10
2.2.5.1 Interface Parameters ............................................................. 10
2.2.5.2 Telegram Setup ASCII Coding (SW5 = ON) ............................. 12
2.2.5.3 Telegram Setup of Binary Coding (SW5= OFF)........................ 12
2.2.6 Positioning Pulse........................................................................ 13
2.2.7 Resetting the antenna.................................................................. 13
2.2.8 Transponder Programming .......................................................... 14
2.2.8.1 Telegram Structure (Host -> Antenna) ..................................... 14
2.2.8.2 Telegram Structure (Antenna -> Host) in case the Transponder
wasn‘t programmed ................................................................ 15
2.3 Serial/parallel interface HG 06150Y (optional) ....................... 16
3 Mounting and Setup ........................................................18
3.1 Testing a Transponder.......................................................... 18
3.2 Mounting Transponder .......................................................... 18
3.3 Reading Antenna .................................................................. 19
3.3.1 Mounting Drills ............................................................................ 19
3.3.2 Connection .................................................................................. 20
3.4 Interface G 06150Y (optional) ............................................... 20
3.5 Maintenance......................................................................... 21
4 Software .........................................................................23
4.1 Terminal program ................................................................. 23
4.1.1 Locate HyperTerminal / Add to the system .................................. 23
4.1.2 Parameter Settings ...................................................................... 24

Contents HG 71450-A
English, Revision 02, Date: 20.01.2015 3
4.2 Monitor Programme .............................................................. 25
4.2.1 Programming of a Transponder Type HG 71325 ........................... 26
4.2.2 Update of the Internal Software (Firmware) .................................. 27
5 Technical Data ................................................................29
5.1 Identifying Antenna G 71450-A.............................................. 29
5.2 Parallel Converter................................................................. 30
6 List of Pictures ................................................................31
7 List of Tables ..................................................................32
8 Index ..............................................................................33
9 Handbook Conventions....................................................34
10 Copyright and Terms of Liability ......................................35
10.1 Copyright.............................................................................. 35
10.2 Exclusion of Liability ............................................................. 35
10.3 Trade Marks and Company Names........................................ 35

Identification Systems HG 71450-A
English, Revision 02, Date: 20.01.2015 4
1 Identification Systems
To ensure that the operating procedure is working properly, the data transmission be-
tween different objects (die carrier, tools, vehicles etc.) and the control system is de-
cisive. Mobile objects have to be identified and positioned fast and safely.
Thus identification systems provide a safe and economical solution, which can be in-
stalled easily. Using these systems it is possible to operate and control the process
flow.
Such a system is suitable for nearly all sectors in which production and transportation
processes have to be automated. For the realization of these automations, data has to
be recorded, collected and processed on the route of transport, at their final destina-
tion, at the premises and at the manufacturing site.
1.1 Application Examples for the Automation
Automation can be realized within the following sectors:
-Storage
-Position fixing of vehicles and containers
-Production lines
-Control of material flow
-Identification of containers
-Control of loading and unloading processes
-Positioning of vehicles in industrial engineering
-Distance control of track guided vehicles
-Position fixing for public transport
Special advantages of the inductive identification system are a positioning accurate to
a millimeter, identification within a far range and an insensitiveness to contamination.

Identification Systems HG 71450-A
English, Revision 02, Date: 20.01.2015 5
1.2 ISystem Configuration
Figure 1 System configuration
1.3 Functional Description
1.3.1 General Functional Description
When the antenna crosses a transponder it supplies it with energy by an alternating
electromagnetic field. As soon as there is enough energy available within the
transponder, it starts to attenuate the magnetic field cyclically with its encoder. This at-
tenuation is reflected to the antenna and generates an amplitude measurement (AM)
of the transmitting component.
Inside the receiver the useful signal will be regained from the AM, decoded and the
data will be output serially. The transponders HG 71325 can be rewritten by the mag-
netic field.
Reading Station
Interpreter
Reading antenna
Serial output of the read out
transponder code and the
positioning impulse
Data carrier

Identification Systems HG 71450-A
English, Revision 02, Date: 20.01.2015 6
1.3.2 Reception Ranges and Function
Positioning is carried out according to the field compensation method. In the center of
the reading antenna the resulting field for the transponder is erased. This data-free
range D, in which no telegrams are output, has a width of 25 to 30 mm at nominal read-
ing height S, see Figure 2.
The field intensity of the magnetic alternating field decreases with an increasing dis-
tance between transponders and reading antenna. Thus the information exchange is
only feasible within the reception ranges I and II, see Figure 2. Viewed from the top the
recption ranges limited to the field lenght L and field width B, see Figure 3.
Figure 2 Detection Ranges I and II, data-free range and nominal reading distance S,
side view
Figure 3 Detection ranges, top view
NOTE! At any given time only a single transponder may be located
within the reception ranges. The following sketch includes sev-
eral transponders in order to illustrate the behaviour at diffierent
transponder positions.
Reading Antenna
Transponder Reception ranges
Area I
Area II
Roadway
Data-free range
D
Direction of Travel F
L
magnetic
Line A
Transponder
Reading Antenna
B
Reception Ranges
field lines
Area I
Area II

Identification Systems HG 71450-A
English, Revision 02, Date: 20.01.2015 7
Figure 4 Core area of the reading antenna with explanation of the positioning pulse
(viewed from the top)
In both reception ranges the code of the transponder is read. In order to additionally
generate a positioning pulse, the transponder has to have moved through area I first.
The maximum offset for this is defined by line C. In this case the positioning pulse is
generated as soon as the transponder passes the border to the date-free range D.
Since both reception ranges have curved contours, the point at which the positioning
pulse is generated shifts according to the offset of the transponder from line A (center
variation).
l
NOTE! You can find the absolute values applying to the reading antenna
in the Technical Data in section 5 on page 29.
Direction of travel F
L
Line C
Offset (Z)
Line A
Transponder
Area II
Area I
Activation of the positioning pulse (dependent on the direction of travel F and the offset from line A)
D
Reading
antenna
B
FF

Identification Systems HG 71450-A
English, Revision 02, Date: 20.01.2015 8
1.3.3 Signals and Timing
Figure 5 Signals and Timing
Initially the data is insecure and the signal strength is still small (area II). Approaching
further the signal becomes stronger and can be read completely. Finally the core recp-
tion range area I is reached. The exit from the reception range is detected as soon as
the thresholds 3 and 4 drop.
Crossing the field border at point 4 releases the center signal. Passing the next detec-
tion ranges (5 to 8) the data is read again and output. Following this at the field border,
point 8, no center signal will be generated. The center signal will also not be generated
if the vehicle passes points 1 to 4 and then stops in the data-free range. The position-
ing signal for this transponder will only be sent again if another transponder with a new
code is read or a reset is carried out via the commando, see 2.2.7 on page 13.
NOTE! If a vehicle stops before the positioning pulse ends and changes
the direction of travel, a wrong positioning pulse is generated on
position 1 or 4. These positions can not be defined exactly. Thus
the identification system should only be used in installations
without any change in the direction of travel.
NOTE! Interfering signals in the areas between point 2 and 3 (or 6 and 7)
can lead to data errors. In this case positioning pulses are gener-
ated at the corresponding, wrong position.
Reading antenna underneath
Transponder Reception ranges
Area I
Area II
Direction of travel
Antenna length
Data-free range (reception gap)
Midpoint
Crossover
(Positioning pulse)
Data
Security
Serial Data
NF
Signals
and Timing
(not to scale)
Zt= Positioning pulse time (Duration of the midpoint crossover pulse) = 100 ms
Zt
the vehicle

Components and Operation HG 71450-A
English, Revision 02, Date: 20.01.2015 9
2 Components and Operation
2.1 Components in the Ground (Transponders)
Götting transponders are applied as reference markers within the ground. The system
is compatible to all transponders of type G 713XX used so far (depending on the in-
stalled version of the reading antenna). The transponder code provides 16 Bit serially
or parallel.
2.2 Identifying Antenna HG 71450 (RS 232)
The antenna system is in a 53 x 31 x 156.5 mm case of polycarbonate. The antenna is
connected by a 5-pole cable. The connecting plug is a M12 circular connector (see
Figure 6). Accessory — an elbow jack with different cable lengths is available (standard
2 m).
Figure 6 Antenna dimensions
2.2.1 Pin Allocation
Connector Pin Allocation
1+UB
2POSI out (20 mA)
3TxD (RS 232)
4RxD (RS 232)
5GND (data and supply)
Table 1 Pin allocation of the 5-pole circular connector
M12 x 1 circular connector
5-pin (male)
A-coded
Position of the Ferrite Rod
Position of the Ferrite Rod
156.5 mm

Components and Operation HG 71450-A
English, Revision 02, Date: 20.01.2015 10
2.2.2 LEDs
4 LEDs are provided for function control:
2.2.3 Turn on Characteristics
On activation of power supply the positioning output will be active (approximately 500
ms) for the duration of the reset. All LEDs will be connected additionally for 500 ms.
After approximately 2 s the device is ready for operation.
2.2.4 General Information
The code supplied by the transponder has a sequence of 24 bits, 16 bits are coded.
They are output serially or parallel with an optional serial / parallel interface .
2.2.5 RS 232 Interface
For communication of the computed data to the outside world the interpreter transmits
the code of a transponder in the interception range. The output is realized correspon-
dent to the chosen adjustment via RS 232 interface (see Table 3 on page 11).
If there is no transponder in the field no protocol will be transmitted.
2.2.5.1 Interface Parameters
The parameters of the serial data transmission depend on the adjustment of the DIP
switches on the evaluation board (see Figure 7).
Figure 7 Position of DIP-Switches SW1 to SW8, Evaluation Board
LED Signification
PWR Indicates operating voltage applied
CD - flashes, if a transponder approaches (area I in Figure 3
on page 6)
- is lit constantly, if the transponder is read reliably
DATA is lit constantly, if a transponder is detected in area I
POS Corresponds to the positioning output
Table 2 Signification of the 4 LEDs
ON
OFF
12345678SW

Components and Operation HG 71450-A
English, Revision 02, Date: 20.01.2015 11
From the following table you can see which kind of adjustments of the RS 232 interface
can be set via the DIP-switches SW1 to SW8.
By SW4 the type of telegram output is adjusted:
SW4 Position ON: When the transponder enters the antenna field of the reading
antenna two identical data sets are put out. Between both data
sets there will be a break of approximately 20 ms. As the vertical
component of the magnetic field shows a zero point centrically
under the reading antenna the transponder will be activated
twice when passing the reading antenna. This leads to an output
of 4 data sets.
SW4 Position OFF: The code will be put out permanently as long as the transponder
is located in the antenna field. Here the data stream will be inter-
rupted as well, if the transponder is located centrically under the
antenna.
SW ON OFF
SW1: Parity ODD EVEN *)
SW2: Baud rate See Table 3 on page 11
SW3: Baud rate
SW4: Code out-
put (see below)
2 Codes *) CONT
SW5: Serial Out-
put
ASCII coded
(see 2.2.5.2 on page 12)
Binary coded*)
(see 2.2.5.3 on page 12)
SW6
Do not change!
*)
Do not change!
SW7
SW8
*) = Factory Setting
Table 3 Options for adjustments by the DIP- switches of the antenna board
Baud Rate SW2 SW3
38400 OFF OFF
9600 *) OFF ON
19200 ON OFF
4800 ON ON
*) = Factory Setting
Table 4 Baud rate adjustment via SW2 and SW3

Components and Operation HG 71450-A
English, Revision 02, Date: 20.01.2015 12
2.2.5.2 Telegram Setup ASCII Coding (SW5 = ON)
Example:
Figure 8 Example for a ASCII telegram setup
Adding the values of A1 to A4 and P results in 0 (A1 + A2 + A3 + A4 + P = 0)
Example
Bit sequence: 0001 1001 0000 000 (Transponder-Code 16 Bit) 1900hex in the tran-
sponder.
The following bytes will be output:
To sum up: “1“, “9“, “0“, “0“ and “6“ results in „0“.
2.2.5.3 Telegram Setup of Binary Coding (SW5= OFF)
Example:
Figure 9 Example for a binary telegram setup
Character Hex-Value ASCII-Interpretation
STX 02 STX
A4 31 „1“
A3 39 „9“
A2 30 „0“
A1 30 „0“
P36 „6“
Table 5 Example telegram ASCII-coded
Check sum (4 Bit hex-coded)
Code D3...D0
Code D7...D4
Code D11...D8
Code D15...D12
STX Start character (STX = 02 Hex)
(ASCII hex-coded)
Check sum
Code D7...D0
Code D15...D8
STX Start character (STX = 02 Hex)

Components and Operation HG 71450-A
English, Revision 02, Date: 20.01.2015 13
Sum of A43, and P results in 0 (Mod256).
Example:
Bit sequence: 0000 0111 0000 1011 Transponder code 16 bit) 070hex in the tran-
sponder
The following bytes will be output:
The hexadecimal sum over 0,7, 0B, EE results in (1)00hex.
2.2.6 Positioning Pulse
On crossing the center line the positioning pulse will be released. Its duration is
100 ms. Once the positioning pulse has been activated, 24 V will be switched to the
corresponding output with a current limitation of 20 mA.
NOTE! Refer to chapter 1.3.3 „Signals and Timing“ on page 8 for the tim-
ing of the PosiPuls.
2.2.7 Resetting the antenna
The reset of the antenna is triggered as soon as it receives the sign DC2 (012h) with
the right parity. Then the antenna confirms the reception of this command by sending
an answer telegram. After that the programm resets all intern variables. Any other
signs or transmission errors are ignored.
This answer telegram is built up as follows (binary coded):
-1. ’StartofHeader’=01h
-2. data byte with the bits 15...8 (bit 8 = LSB of the byte) of the last read code
-3. data byte with the bits 7...0 (bit 0 =LSB of the byte) of the last read code
-4. check byte: the sum of the telegram identification, the data bytes and this
check byte equals 0.
If the ASCII coded output is activated, the code will be displayed as shown in table 5
on page 12 . If no transponder has been read until the card is resetted, the value 000h
will be put out.
Character Hex-Value
STX 02
A43 07
A21 0B
PEE
Table 6 Example telegram binary coded

Components and Operation HG 71450-A
English, Revision 02, Date: 20.01.2015 14
2.2.8 Transponder Programming
You can program Transponders that are placed either in area I or area II but not in the
data-free range (see Figure 2 on page 6) using serial commands structured as shown
in Table 7 on page 14 and Table 8 on page 15.
-In case the transponder is programmed successfully its new code is output
according to the setting of SW4, see Table 3 on page 11.
-In case no transponder was placed in the antenna field or the programming
wasn‘t successful a special response telegram is output structured as shown in
Table 9 on page 15 and Table 10 on page 16. This telegram is output after approx.
2 seconds.
-Baud rate and parity of the characters are set according to the position of the DIP
switches SW1 to SW3, see Table 3 on page 11.
-The check sums are calculated according to the telegram content.
2.2.8.1 Telegram Structure (Host -> Antenna)
1. ASCII telegram with fixed start character, 4 data bytes and a check sum.
Examples of valid ASCII telegrams:
Code 1900: 0x11h,0x31h,0x39h,0x30h,0x30h,0x36h
(1h+9h+0h+0h+6h= *)
Code AFFE: 0x11h,0x41h,0x46h,0x46h,0x45h,0x41h
(Ah+Fh+Fh+Eh+Ah= *)
*) Only 1 digit is output.
#Character Meaning Type Value range
1 DC1 Start character Unsigned char 0x11h
2Code (Hi)
Transponder code to be programmed
Unsigned char
0x30h… 0x39h,
0x41h… 0x46h,
0x61h… 0x66h
'0'…'9', 'A'…'F', 'a'…'f'
3Code Unsigned char
4Code Unsigned char
5Code (Lo) Unsigned char
6Check sum The addition of the characters 2 to 6
makes
Unsigned char
Table 7 Content of the telegrams sent by the host (ASCII mode)
0xX0h
10h
40h

Components and Operation HG 71450-A
English, Revision 02, Date: 20.01.2015 15
2. Binary telegram with fixed start character, 2 data bytes and a check sum.
Examples of valid binary telegrams:
Code 1900: 0x11h,0x19h,0x00h,0xE7h
(19h+00h+E7h= *)
Code AFFE: 0x11h,0xAFh,0xFEh,0x53h
(AFh+FEh+53h= *)
*) Only 2 digits are output.
2.2.8.2 Telegram Structure (Antenna -> Host) in case the Transponder wasn‘t
programmed
This telegram type is only sent once.
1. ASCII-Telegram with fixed start character, 4 data bytes and a check sum.
#Character Meaning Type Value range
1 DC1 Start character Unsigned char 0x11h
2Code (Hi)
Transponder code to be programmed
Unsigned char
0x00h… 0xFFh
3Code (Lo Unsigned char
4Check sum The addition of the characters 2 to 4
makes
Unsigned char
Table 8 Content of the telegrams sent by the host (binary mode)
#Character Meaning Type Value range
1SOH Start character Unsigned char 0x01h
2Code (Hi)
Last read transponder code
Unsigned char
0x30h… 0x39h,
0x41h… 0x46h,
0x61h… 0x66h
'0'…'9', 'A'…'F', 'a'…'f'
3Code Unsigned char
4Code Unsigned char
5Code (Lo) Unsigned char
6Check sum The addition of the characters 2 to 6
makes
Unsigned char
Table 9 Content of the telegram sent by the Antenna (ASCII mode)
0xX00h
100h
200h
0xX0h

Components and Operation HG 71450-A
English, Revision 02, Date: 20.01.2015 16
2. Binary -Telegram with fixed start character, 2 data bytes and a check sum.
2.3 Serial/parallel interface HG 06150Y (optional)
Figure 10 Interface HG 06150Y for mounting bar installation
The serial/parallel interface is within a case suitable four mounting bar installation. The
serial data is tranferred via the RS 232 interface. The serial output of the antenna has
to be set to CONT. The baud rate has to be 19200bd with the parity EVEN. The serial
output has to be ASCII coded. According to this the DIP switches have to be set to the
following values:
To control this interface, the LED can be seen through a transparent cover. It flashes
while serial telegrams are being decoded. This telegrams are only created if a tran-
sponder is situated in the field.
#Character Meaning Type Value range
1SOH Start character Unsigned char 0x01h
2Code (Hi)
Last read transponder code
Unsigned char
0x00h… 0xFFh
3Code (Lo Unsigned char
4Check sum The addition of the charactes 2 to 4
makes
Unsigned char
Table 10 Content of the telegram sent by the antenna (binary mode)
SW Setting
1OFF
2 ON
3OFF
4OFF
5 ON
Table 11 DPI switches 1 to 5 for using serial/parallel interfaces
0xX00h

Components and Operation HG 71450-A
English, Revision 02, Date: 20.01.2015 17
From the data stream the code will be converted into a 16 bit parallel output. The code
is located at the outputs until a new code is received. Furthermore, 50ms after the ar-
riving of the codebits a Data_Ready_Impuls (duration: 100ms) is created. A new
Data_Ready_Impuls will only be created at a code change.
Whether the transponder is located under the antenna or not is shown though the sig-
nal Data_Valid. If there is no transponder in the field, 0V is put out. When the parallel
exits Data_Ready and Data_Valid are activated they switch to +Usps (24V) .
They are neither limited in current nor they are electrically insulated.

Mounting and Setup HG 71450-A
English, Revision 02, Date: 20.01.2015 18
3 Mounting and Setup
3.1 Testing a Transponder
It is possible to test the transponders with a reading antenna and a connected PC (see
section 4.2 on page 25).
3.2 Mounting Transponder
Range and positioning accuracy will be influenced by
-metal parts lying on the ground (sheet metals)
-reinforcement laid close to the transponder
-Induction loops, e.g. formed by reinforcement mats
NOTE! Individual metal rods have only little influence and may hurt the
metalfree area partially.
There is no influence on the positioning accuracy due to
-environmental influences as snow, ice and water
-contaminations as oil, tar etc.
Basically the following Mounting Instructions for Transponders have
to be observed
-Keep a minimum distance of 500 mm between the transponders.
-Keep a minimum distance to the metal parts. The interference on positioning
accuracy and range depends on the size and the range of the metal parts.
-The minimum distance between conductors with a diameter smaller than 6 mm
has to be 2 mm.

Mounting and Setup HG 71450-A
English, Revision 02, Date: 20.01.2015 19
3.3 Reading Antenna
3.3.1 Mounting Drills
Figure 11 Mounting of the identifying antenna: Position and size of the drilling
All indications refer to the position of the ferrite rod in the antenna:
Figure 12 Nominal reading distance / position of the antenna ferrite rod
To achieve a maximum range (> 50 mm) of the reading distance, it is recommendable
to mount a 10 mm plastic plate or a 10 mm spacing bolt between the steel or alumin-
ium rack and the reading antenna. When using spacing bolts, a large washer is to be
placed under the reading antenna.
G 71450-A
Direction of Travel
mounting level
mounting level
metal-freemetal-free
reading
Position of
the ferrite rod
area area
distance

Mounting and Setup HG 71450-A
English, Revision 02, Date: 20.01.2015 20
NOTE! If several antennas are applied within one installation they have
to be mounted in a minimum distance of 1500 mm to one
another to guarantee a smooth production flow
3.3.2 Connection
Connection wires are not part of the scope of supply. Figure 6 on page 9 indicates
which kind of cable construction can be applied. These kind of cables are commer-
cially obtainable at many manufacturers (e. g. Binder 79-3444-32-05 M12 line 2 m
PUR 5 x 025). For pin allocation please refer to Table 1 on page 9.
Accessory parts as an elbow jack with different cable lengths available (standard
2m).
If a high interference level is excepted shielded wires ought to be used.
3.4 Interface G 06150Y (optional)
The optional interface has to be installed on a mounting bar. It has the following termi-
nal allocations:
Figure 13 Configuration of the interface mounting bar casing
The function is described in 2.3 „Serial/parallel interface HG 06150Y (optional)“ on
page 16.
Connectors of the Mounting Bar Casing
1Code Bit 1 (low bit) 15 Code Bit 15
2Code Bit 2 16 Code Bit 16 (most significant
bit)
3Code Bit 3 17 Data Ready
4Code Bit 4 18 Data Valid
5Code Bit 5 19 n. c.
Table 12 Terminal allocation of the interface-mounting bar casing (part 1 of 2)