Gotting HG 71451-A Bedienungsanleitung

Device Description HG 71451-A



Positioning and Identification

Antenna

— Profibus —

HG 71451-A

English, Revision 03 Dev. by: D.F. / T.N. / W.M.

Date: 07.02.2012 Author(s): RAD / A.F. / L.S.

Götting KG, Celler Str. 5, D-31275 Lehrte - Röddensen (Germany), Tel.: +49 (0) 51 36 / 80 96 -0,

Fax: +49 (0) 51 36 / 80 96 -80, eMail: [email protected], Internet: www.goetting.de

Contents HG 71451-A

English, Revision 03, Date: 07.02.2012 2

Contents

1 Identification Systems ...................................................... 4

1.1 Application Examples for the Automation................................. 4

1.2 System Components............................................................... 4

1.3 System Configuration.............................................................. 5

1.4 Functional Description ............................................................ 5

1.4.1 General Functional Description ...................................................... 5

1.4.2 Transmission Range and Function .................................................6

1.4.3 Signals and Timing ........................................................................ 7

2 Components and Operation .............................................. 8

2.1 Components in the Ground (Transponders) ............................. 8

2.2 Identifying Antenna HG 71451-A (Profibus) ............................. 8

2.2.1 Pin Allocations...............................................................................9

2.2.2 LEDs ........................................................................................... 10

2.2.3 Turn-on Characteristics ............................................................... 10

2.2.4 General Information.................................................................... 10

2.2.5 Profibus Interface ........................................................................ 10

2.2.6 Profibus Address ......................................................................... 13

2.2.7 RS 232 - Interface ....................................................................... 13

2.2.8 PosiPuls ...................................................................................... 14

3 Mounting and Setup ........................................................15

3.1 Testing a Transponder.......................................................... 15

3.2 Mounting Transponder .......................................................... 15

3.2.1 Mounting in very solid Ground (e. g. concrete) ............................. 15

3.2.2 Mounting in Tough Material (e. g. tar) .......................................... 16

3.3 Reading Antenna .................................................................. 16

3.3.1 Mounting Drills ............................................................................ 16

3.3.2 Connection .................................................................................. 17

3.4 Maintenance......................................................................... 17

4 Software .........................................................................18

4.1 Terminal program ................................................................. 18

4.1.1 Locate HyperTerminal / Add it to the system ............................... 18

4.1.2 Parameter Settings ...................................................................... 19

4.2 Monitor Program ................................................................... 20

4.2.1 Programming of a Transponder Type HG 71325 ........................... 21

4.2.2 Update of the Internal Software (Firmware) .................................. 22

5 Technical Data ................................................................24

Contents HG 71451-A

English, Revision 03, Date: 07.02.2012 3

5.1 Identification Antenna HG 71451-A ....................................... 24

6 GSD File (Antenna HG 71451-A with Profibus).................25

7 List of Pictures ................................................................26

8 List of Tables ..................................................................27

9 Index ..............................................................................28

10 Handbook Conventions....................................................29

11 Copyright and Terms of Liability ......................................30

11.1 Copyright.............................................................................. 30

11.2 Exclusion of Liability ............................................................. 30

11.3 Trade Marks and Company Names........................................ 30

Identification Systems HG 71451-A

English, Revision 03, Date: 07.02.2012 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.

1.2 System Components

In order to create a whole positioning und identification system, transonders are need-

ed. The antenna HG 71451-A fits the following types:

Transponder HG 71325 (free codable) / HG 71370 (switch transponder)

Frequency Antenna Transponder

125 kHz 71451YA 71325ZA (other types on demand)

409 kHz 71451ZA 71325YA, 71370-A (switch transponder)

Table 1 Available antennas and transponders

Identification Systems HG 71451-A

English, Revision 03, Date: 07.02.2012 5

1.3 System Configuration

Figure 1 System configuration

1.4 Functional Description

1.4.1 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 tran-

sponder, it starts to attenuate the magnetic field cyclically with its encoder. This atten-

uation is reflected to the antenna and generates an amplitude measurement (AM) of

the transmitting component.

Inside the receiver the signal will be regained from the AM, decoded and the data will

be put out serially. The transponders HG 71325 can be rediscribed by the magnetic

field.

Reading Station

Interpreter

Reading antenna

Serial output of the read out

transponder code and the

positioning impulse

Data carrier

Identification Systems HG 71451-A

English, Revision 03, Date: 07.02.2012 6

1.4.2 Transmission Range and Function

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 a certain area.

The field length L and the field width B of the transmission range (see Figure 2 auf Seite

6) will be defined via the parallel centre line through the reading antenna (road). The

distance between reading antenna and the sectional plane is indicated as S.

A faultless function of the system is guaranteed if the transponders and the reading

antenna move towards each other with the distance specified by S and within the

range defined by L and B - provided that they are properly aligned. The transponder

(line B) will even be detected in case of an offset (centre deviation). Then the position-

ing impulse will be output with an offset.

Figure 2 Length and width of the interception area (view from above)

Positioning is effected according to the field compensation method. The resulting field

for the transponder will be deleted centrically to the reading station. At the transition

to this region (registration gap or datafree range) the position of the transponder at the

object will be detected exactly and indicated (see table 3 on page 7).

Identification Systems HG 71451-A

English, Revision 03, Date: 07.02.2012 7

1.4.3 Signals and Timing

With the transponders G 71310, G 71320 and G 71325.

Figure 3 Signals and Timing

Initially the data are insecure and the signal strength is still small (range II). Approach-

ing further the signals of the data become stronger and can be read completely. The

loss of the interception area is detected via the controller in that the thresholds are

reached (3 and 4). Finally the internal interception range (range I) will be achieved.

Crossing the field border at point 4 releases the center signal. Passing the next detec-

tion ranges (5 to 8) the data are read again and will be indicated. At the field border,

point 8, no center signal will be released. The center signal will not even be set if the

vehicle stops and drives back after having passed point 1 to 4 within the interception

gap (4 and 5). The positioning signal for this transponder will only be send again if an-

other transponder with a new code is read in the meantime or a reset is implemented

by turning-off or turning- on the operating voltage.

If a vehicle stops before the central pulse ends and changes the direction of travel, a

“wrong“ central pulse is generated on position 1 or 4. These positions can not be de-

fined exactly. So the identification system should only be applied in installations

without any change in direction.

Components and Operation HG 71451-A

English, Revision 03, Date: 07.02.2012 8

2 Components and Operation

2.1 Components in the Ground (Transponders)

Transponders type HG 71325 (by Götting KG) are applied as reference markers within

the ground. The system is compatible to all transponders of type HG 713XX used so

far (depending on the installed version of the reading antenna).

By using the switchable transponder HG 71370 a simple point- to- point connection in

addition to the positioning is feasible. The transponder, e.g. installed within the ground,

signals an approaching vehicle to the system. Thus the system is able to transfer a

message to the vehicle by selecting one of 4 codes to choose from. Furthermore tran-

sponder version HG 71370-W is able to change the positioning mode.

The transponder code provides 16 Bit serially or parallel.

2.2 Identifying Antenna HG 71451-A (Profibus)

The antenna system is in a 53 x 31 x 156.5 mm casing (polycarbonate). The antenna

is connected by 5-pole cables. The terminal connector is a M12 circular connector

(see Figure 4). As an accessory an elbow jack with different cable lengths is available

(standard 2 m).

Figure 4 Antenna dimensions HG 71451-A

M12 x 1 circular connector

5-pin (female)

B-coded

M12 x 1 circular connector

5-pin (male)

B-coded

Position of ferrite rod

156.5 mm

Profibus Address

A-coded

5-pin (male)

M12 x 1 circular connector

Components and Operation HG 71451-A

English, Revision 03, Date: 07.02.2012 9

2.2.1 Pin Allocations

ST1 Pin Allocation

1+UB

2POSI out (20 mA)

3TxD (RS 232)

4RxD (RS 232)

5GND (Data and Supply)

Table 2 Pin alloc. of the 5-pin circular connector ST1 (pin, HG 71451-A)

ST2 Pin Allocation

1Bus +5 V

2Bus A

3RTS

4Bus B

5Bus GND

Table 3 Pin alloc. of the 5-pin circular connector ST2 (socket, HG 71451-A1)

ST3 Pin Allocation

1Bus +5 V

2Bus A

3RTS

4Bus B

5Bus GND

Table 4 Pin alloc. of the 5-pin circular connector S13 (pin, HG 71451-A)

Components and Operation HG 71451-A

English, Revision 03, Date: 07.02.2012 10

2.2.2 LEDs

4 LEDs are provided for function control

2.2.3 Turn-on Characteristics

On activation of power supply for the duration of the reset the positioning output is ac-

tive (approximately 500 ms) for the duration of the reset. All LEDS, except for the BUS-

LED, will be connected additionally for 500 ms each in order to test their function. 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 encoded.

The serial interface will only be applied for the monitor programme described in sec-

tion 4.2 on page 20. For this antenna the data as well as one status byte will be output

via the profibus. The programming of transponders can be implemented via the profi-

bus as well.

2.2.5 Profibus Interface

By means of the GSD files HG 7145A3 GSD (section 6 on page 25) it is possible to

project three different configurations.

LED Signification

PWR Indicates operating voltage applied

CD Shines steadily, if a transponder is located in area I (see

Figure 2 on page 6)

DATA - Flickers, if a transponder approaches (range II in Figure

2 on page 6)

- Shines continuously, if the transponder is read reliably

POS Corresponds to the positioning output /

additional indicator function

- Blinks once if an address >126 was adjusted

- Blinks twice or three times, if internal profibus errors

occur

BUS Shines on data exchange with profibus- master

Table 5 Significance of the 5 LEDs HG 71451-A

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