Guidance Antenna for Inductive Power Transmission. With Profibus-DP G_19333YA

Transcription

1 Device Description Guidance Antenna for Inductive Power Transmission With Profibus-DP English, Revision 01 Dev. by: L.M. Date: Author(s): RAD Götting KG, Celler Str. 5, D Lehrte - Röddensen (Germany), Tel.: +49 (0) / , Fax: +49 (0) / , techdoc@goetting.de, Internet:

2 Contents Contents 1 Introduction System Description Casing Dimensions Display Elements Pin Allocations Profibus Interface Serial Communication (RS-232) Monitor mode Switching to Monitor Mode Screen layout in Monitor Mode Commands that can be used in Monitor Mode Technical Data GSD File List of Pictures List of Tables Copyright and Terms of Liability Copyright Exclusion of Liability English, Revision 01, Date:

3 Introduction 1 Introduction Guidance antenna was especially developed for FTS facilities, which use inductive power transmission in such a way that the available ground installation is also used for track guiding vehicles. The guidance antenna consists of three systems with one cross-coil antenna each. Each of these systems generates one Detect signal and two analogue output voltages that are proportional to the horizontal or vertical components of the magnetic field. Power PB R L R L R L L H SYSTEM 3 SYSTEM 2 SYSTEM 1 PB Adresse approx. 50 mm 140 mm Energy loop Figure 1 Principles 255 System 1 System 2 System Sum 0 0 Difference In direction of travelling: Left Central deviation [mm] Centre Sum Right Difference -128 Figure 2 Diagram: Voltage curve of the three antenna systems By using three antenna systems, branching from the main course is made possible. The three antenna systems work synchronously and their measured values are permanently cyclically transmitted via Profibus and via the serial interface. The decision which signal shall be evaluated at a particular time is carried out by the vehicle controller. English, Revision 01, Date:

4 System Description 2 System Description 2.1 Casing Dimensions 230 mm 55 mm 75 mm Power PB R L R L R L L H SYSTEM 3 SYSTEM 2 SYSTEM 1 PB Adresse Figure 3 Casing of the guidance antenna (incl. dimensions) 2.2 Display Elements Power PB R L R L R L L H SYSTEM 3 SYSTEM 2 SYSTEM 1 PB Adresse Figure 4 Display Elements Located in the front side cover, there are two LEDs for each antenna system, which indicate the zero point of the differential voltage. Furthermore there is one LED indicating if the antenna is on and one that shows the status of the Profibus communication. English, Revision 01, Date:

5 System Description 2.3 Pin Allocations ST1 M12x1 Circular connector 5-pin (male) A-coded ST2 M12x1 Circular connector 5-pin (female) B-coded ST3 M12x1 Circular connector 5-pin (male) B-coded Power Figure 5 Position of the connectors Connector Pin Function ST1 (plug) 1 +UB TxD 4 RxD 5 GND ST2 (Socket) ST3 (Plug) Bus +5 V 2 Bus A 3 RTS 4 Bus B 5 Bus GND Table 1 Pin allocations ST1, ST2 and ST3 2.4 Profibus Interface The device is working as a Slave on Profibus-DP V0 according to DIN E T3. Adjustable baud rates: 9600 Baud to 12 Mbaud Profibus address: 0 to 126 adjustable via 2 Hex turn-switches (addresses above 126 are not allowed!) Update rate of the measured values: 6 ms Output bytes 7 (see Table 2 on page 6) English, Revision 01, Date:

6 System Description Output Byte Data 1 Sum left system (1) 2 Difference left system (1) 3 Sum centre system (2) 4 Difference centre system (2) 5 Sum right system (3) 6 Difference right system (3) 7 Detect signals and error messages (refer to Table 3) Table 2 Profibus output bytes Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Error System 1 Left System 1 Right System 2 Left System 2 Right System 3 Left System 3 Right Table 3 Detect signals and error message in output byte Serial Communication (RS-232) Independently from the Profibus-DP interface the communication can be carried out through the built-in RS-232 interface. In order to do so a terminal program (e.g. Hyper- Terminal on MS Windows) using the following parameters is needed. Interface parameters: Terminal parameters: Baud rate bits/second 8 Data bits, parity even, 1 stop bit Protocol: Xon/Xoff ANSI emulation By default raw data is output when the device is turned on respectively the monitor mode is turned off. The update rate is 6 ms (the same as the output on the Profibus interface). The serial telegrams have the following configuration: Output byte Data 1 Start character STX (ASCII 2) 2 Sum left system (1) high nibble 3 Sum left system (1) low nibble 4 Difference left system (1) high nibble 5 Difference left system (1) low nibble Table 4 Configuration of the serial telegrams (part 1 of 2) English, Revision 01, Date:

7 System Description Output byte Data 6 Sum centre system (2) high nibble 7 Sum centre system (2) low nibble 8 Difference centre system (2) high nibble 9 Difference centre system (2) low nibble 10 Sum right system (3) high nibble 11 Sum right system (3) low nibble 12 Difference right system (3) high nibble 13 Difference right system (3) low nibble 14 Detect signals and error message high nibble 15 Detect signals and error message low nibble 16 Check sum Table 4 Configuration of the serial telegrams (part 2 of 2) For detect signals and error message see Table 3 on page 6. Check sum: Nibble-wise addition of the output bytes 2 to 15 with final negation Example of a serial telegram Start char. STX Sum left Diff. left Sum centre Diff. centre Sum right Diff. right Detect +Error Check sum 2 B 3 0 D D E 0 A B Table 5 Example of a serial telegram Hexadecimal coding of the telegram content: 2B30DDE0AB Calculation of the check sum: Nibble-wise addition of the output bytes 2 to 15: B D + D + E A + B = 59 Negation: > A7 Check sum = 7 English, Revision 01, Date:

8 Monitor mode 3 Monitor mode 3.1 Switching to Monitor Mode In order to switch to monitor mode, pleasefollow below shown cycle: 1 second silence on the transmission line towards the antenna Send 3x + to the antenna within 1 second 1 second silence on the transmission line towards the antenna Figure 6 Cycle for starting the monitor mode 3.2 Screen layout in Monitor Mode Figure 7 Screen shot: Monitor mode 3.3 Commands that can be used in Monitor Mode ( )et Detect Level Set the limit of Detect. ( )eft System ( )enter System > Set individual offsets for each system. ( )ight System ( )utput CSV-Data Comma separated data output. ( )pdate Firmware Deletes flash memory. A new hex file has to be sent to the antenna as a text file. ( )uit Quit monitor mode. English, Revision 01, Date:

9 Technical Data 4 Technical Data Guidance Antenna Casing Glass-fibre reinforced (GRP) Dimensions See Figure 3 on page 4 Weight approx. 750 g Protection class IP 65 Power supply Current consumption Connectors Relative humidity at 25 o C Operating temperature Storage temperature 18 to 30 V 130 ma M12 circular plug-in connector 5-pin 95 % (without condensation) 0 to +50 o C -20 to +70 o C Table 6 Technical Data Guidance Antenna English, Revision 01, Date:

10 GSD File 5 GSD File The GSD file is supplied on a floppy disk together with this manual and should be copied from there. Alternatively you can enter the text shown below into a text editor for yourself and save it as 19333A1.GSD. Errors that may happen while typewriting the file may cause unexpected behaviours. Therefore we suggest that you use the file from the disk. ;************************************************************************* ;*** *** ;*** Götting KG *** ;*** D Lehrte-Röddensen *** ;*** Celler Straße 5 *** ;*** Tel: 05136/ *** ;*** Fax: 05136/ *** ;*** *** ;************************************************************************* ;*** *** ;*** Filename: 19333A1.GSD (c) 2004 *** ;*** GSD file version 1 from *** ;*** *** ;************************************************************************* ; ; ATTENTION: ; ========== ; Changes in this file can cause configuration or communication problems. ; This file is compatible to the firmware of the device. #Profibus_DP GSD_Revision = 1 Vendor_Name = "Götting KG" Model_Name = "HG19333A1" Revision = "Version 1.00" Ident_Number = 0x3004 Protocol_Ident = 0 Station_Type = 0 Hardware_Release = "HG19333" Software_Release = "19333A1 V1.00" Implementation_Type = "SPC3" 9.6_supp = _supp = _supp = _supp = 1 500_supp = 1 1.5M_supp = 1 3M_supp = 1 6M_supp = 1 12M_supp = 1 MaxTsdr_9.6 = 60 MaxTsdr_19.2 = 60 MaxTsdr_93.75 = 60 MaxTsdr_187.5 = 60 MaxTsdr_500 = 100 MaxTsdr_1.5M = 150 MaxTsdr_3M = 250 MaxTsdr_6M = 450 MaxTsdr_12M = 800 Redundancy = 0 Repeater_Ctrl_Sig = 0 24V_Pins = 0 Freeze_Mode_supp = 1 Sync_Mode_supp = 1 Auto_Baud_supp = 1 Set_Slave_Add_supp = 0 User_Prm_Data_Len = 0 Min_Slave_Intervall = 11 English, Revision 01, Date:

11 GSD File Modular_Station = 0 Max_Diag_Data_Len = 244 Slave_Family = 3 Module = "7 Byte Input" 0x16 EndModule Figure 8 The content of the GSD file English, Revision 01, Date:

12 List of Pictures 6 List of Pictures Figure 1 Principles... 3 Figure 2 Diagram: Voltage curve of the three antenna systems... 3 Figure 3 Casing of the guidance antenna (incl. dimensions)... 4 Figure 4 Display Elements... 4 Figure 5 Position of the connectors... 5 Figure 6 Cycle for starting the monitor mode... 8 Figure 7 Screen shot: Monitor mode... 8 Figure 8 The content of the GSD file English, Revision 01, Date:

13 List of Tables 7 List of Tables Table 1 Pin allocations ST1, ST2 and ST Table 2 Profibus output bytes... 6 Table 3 Detect signals and error message in output byte Table 4 Configuration of the serial telegrams... 6 Table 5 Example of a serial telegram... 7 Table 6 Technical Data Guidance Antenna... 9 English, Revision 01, Date:

14 Copyright and Terms of Liability 8 Copyright and Terms of Liability 8.1 Copyright This manual is protected by copyright. All rights reserved. Violations are subject to penal legislation of the Copyright. 8.2 Exclusion of Liability Any information given is to be understood as system description only, but is not to be taken as guaranteed features. Any values are reference values. The product characteristics are only valid if the systems are used according to the description. This instruction manual has been drawn up to the best of our knowledge. Installation, setup and operation of the device will be on the customer s own risk. Liability for consequential defects is excluded. We reserve the right for changes encouraging technical improvements. We also reserve the right to change the contents of this manual without having to give notice to any third party. English, Revision 01, Date: