Gotting HG 71450-A User manual

Device Description HG 71450-A
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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
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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
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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
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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
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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
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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
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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