hopf 6870 Parts list manual

Technical Description
GPS Satellite Clock
6870
Version 15.01 08.07.2011

COMPANY INFO
Page 2 GPS Satellite Clock 6870 - Ver. 15.01
Safety information
The safety regulations and technical data are important for the smooth running of the devices and
the protection of people and equipment. Strict compliance with these regulations is required. In case
of non-compliance with these regulations the guarantee and warranty claims for the device expire.
There is no liability for possible consequential damages.
Safety of the Devices
The production of this device follows the latest technological standards and safety regulations.
The device must not be assembled by anyone but trained personnel. Please make sure that all the
connected cables are laid and fixed properly. The device is to be run with the supply voltage stated
on the identification plate only.
Only trained personnel or specialists may operate the device.
Repair on opened devices must not be carried out by anyone but specially trained staff or by the
hopf_ Elektronik GmbH company.
If the maintenance work requires the opening of a device or if a fuse needs changing the device
must be separated from all voltage supplies.
If there are reasons to believe that the operational safety can no longer be guaranteed the device
must be taken out of service and labelled accordingly. The safety may be impaired when the device
does not operate properly or if it is obviously damaged.
hopf_ Elektronik GmbH
Nottebohmstr. 41 58511 Lüdenscheid
Postfach 1847 58468 Lüdenscheid
Tel.: ++49 (0)2351 / 9386-86
Fax: ++49 (0)2351 / 9386-93
Internet: http://www.hopf.com
e-mail: [email protected]om

TABLE OF CONTENTS
CONTENTS Page
GPS Satellite Clock 6870 - Ver. 15.01 Page 3
1 Brief Information Model 6870 and Delivered Extras 5
2 Introduction 6
3 Commissioning 7
3.1 Voltage Supply 7
3.2 Antenna Installation 7
3.3 Default Button in the Front Panel 7
3.4 LED "CLK" 7
3.5 Control LED C1-C3 7
3.6 Set-up via Remote Software 8
3.6.1 Pre-conditions of the System for the Remote Software 8
3.6.2 Hints for the Installation of the Remote Software 8
3.6.3 What You Should Know 9
3.6.4 Possible Errors in the Transmission with GPS-6870.EXE 10
4 Range of Functions of the Remote Software 11
4.1 The File Setup Menu 11
4.1.1 Saving the Current Setup in a File 11
4.1.2 Saving the Stored Clock Data 11
4.1.3 Viewing the Current Setup 11
4.1.4 Transmission of the Current Setup to the Clock 11
4.1.5 Structure of the Setup File 12
4.1.6 Supervision of the Output Data String 13
4.1.7 Printing the Setup Settings 13
4.2 Initialising the GPS - Receiver 14
4.2.1 Setting Time and Date 14
4.2.2 Entering the Points of Changeover 15
4.2.3 Setting the Difference UTC/Local 15
4.2.4 Setting the Day Offset 16
4.2.5 Setting the Position Data 16
4.2.6 Time Decoding 3D / Position fix 17
4.2.7 DCF77-Simulation and Radio-Bit 18
4.2.8 Setting the Optical Coupler Outputs 19
4.2.9 System Byte settings 21
4.2.10 Reset Function 23
4.3 Supervision of the GPS- Receiver 23
4.3.1 Time and Date 23
4.3.2 Points of Changeover 23
4.3.3 Difference Local-UTC 23
4.3.4 Position 23
4.3.5 Reception Quality 24
4.3.6 Firmware Revision 25
5 Signal and Data Output 26
5.1 IRIG Time Code 26
5.1.1 IRIG Time Code Structure and Timing-Diagram 27
5.1.2 Format categories IRIG-Bxxx according to IRIG Standard 200-04 28
5.1.3 IRIG IEEE 1344-1995 28
5.1.4 AFNOR NFS 87-500 28
5.2 Configuration of the Serial Interfaces 29
5.2.1 Configuration of the serial parameter 29
5.3 Configuration of the Data String (Mode byte 1) 30
5.3.1 Time information output 30
5.3.2 Control Characters 31
5.3.3 Control Characters (CR, LF) 31
5.3.4 Forerun 31
5.3.5 Transmission Point of Time 31
5.3.6 Selection of Data String with Mode byte 2 32
5.4 Data Format of the Serial Transmission 33
5.5 Serial Request 34
5.5.1 Serial Request in the Standard String 6021 34
5.5.2 Serial Request in MADAM S 34
5.5.3 Serial Request in T-String, ABB_S_T and NTGS 34
5.5.4 Serial Request in SINEC H1 34

TABLE OF CONTENTS -CONTINUED
CONTENTS Page
Page 4 GPS Satellite Clock 6870 - Ver. 15.01
6 Data Strings 35
6.1 General Information on the Data Output of 6870 35
6.2 Data String 6870/6021 Time and Date 36
6.2.1 Data String 6870/6021 Time Only 36
6.2.2 Status and Day of the Week Nibble in the Data String 6870/6021 Standard 37
6.2.3 Example of a Transmitted Data String 6870/6021 (Standard) 37
6.3 Data String DCF-Slave 38
6.3.1 Status in the Data String DCF-Slave 38
6.3.2 Example of a Transmitted Data String DCF-Slave 39
6.3.3 Setting 39
6.4 Data String SINEC H1 40
6.4.1 Status in the Data String SINEC H1 41
6.4.2 Example of a Transmitted Data String SINEC H1 41
6.5 Data String MADAM-S 42
6.5.1 Required Setting for Output MADAM-S 44
6.5.2 Status Nibble in the Data String MADAM-S 44
6.6 Data String IBM 9037 / Sysplex Timer 45
6.6.1 Status in the Data String IBM 9037 / Sysplex Timer 45
6.6.2 Example of a transmitted Data String IBM 9037 / Sysplex Timer 45
6.7 Data String 6870/6021 String 2000 46
6.7.1 Status in the Data String 2000 47
6.7.2 Example of a Transmitted Data String 2000 47
6.8 Data String T-String 48
6.8.1 Example of a Transmitted Data String T-String 48
6.9 Data String ABB_T_S 49
6.10 Data String TimeServ for the Operating System Windows NT 49
6.11 Data String for NTP (Network Time Protocol) 50
6.12 Data String NTGS-String 51
6.12.1 example of a transmitted data string NTGS 51
6.13 Master/Slave-String 52
6.13.1 Status in the Data String Master-Slave 53
6.13.2 Example of Transmitted Data String Master/Slave 53
6.13.3 Setting 53
6.14 SPT-String 54
6.15 Data String SAT 1703 Time String 56
6.15.1 Specified Settings 56
6.15.2 Data String Structure 56
6.15.3 Data String Example 57
6.16 SINEC H1 Extended 58
6.16.1 Status 59
6.16.2 Example of a Transmitted Data String 59
6.17 NMEA - GPRMC 60
6.17.1 Structure of the data string 61
6.17.2 Example of a Transmitted Data String 62
6.18 Data String NMEA (GPZDA) 63
6.18.1 String Structure 64
6.18.2 Example of a Transmitted Data String 65
7 Serial Interface and Screw Terminals 66
7.1 Pin Allocation of the 9-pole SUB-D Connector 66
7.1.1 Version 1 - RS232 and RS422 (Standard) 66
7.1.2 Version 2 - RS232 / RS232 66
7.1.3 Version 3 - RS232 / TTY 66
7.1.4 Version 4 - RS232 / pulse (PPS / DCF77) 67
7.1.5 Version 5 - IRIG-B with RS232 and RS422 67
7.1.6 Version 6 - RS232 and NTGS-pulse 67
7.2 Allocation of the Screw Terminals 68
7.2.1 Examples for assignment 68
8 Technical Data 70

BRIEF INFORMATION MODEL 6870 AND DELIVERED EXTRAS
GPS Satellite Clock 6870 - Ver. 15.01 Page 5
1Brief Information Model 6870 and Delivered Extras
The radio controlled clock 6870 is an all-purpose GPS
1
reception module - ideal to synchronise
industrial processes. The snap-in module can be supplied with various combinations of interfac-
es.
Up to 16 different protocols can be put out via the interfaces, to synchronise devices by different
producers (Siemens, ABB, IBM, H+B).
Three built-in optical couplers can be used to synchronize computers, control systems or meas-
uring processes, with freely programmable pulses. Every optical coupler can carry out one of 5
output programmes, whereby either cyclic pulses are generated or status information is about at
the outputs.
A simulated antenna signal is available to DCF77
2
systems. Further features are:
potential free antenna circuit,
all settings can be parametered via serial interface,
all outputs potential free,
two independent serial interfaces RS232/RS422, other combinations e.g.
RS232/TTY (passive) or RS232/RS232 are available on request.
We supply the snap-in module with:
PC interface cable and
configuration software on CD-Rom.
1
GPS = global positioning system
2
DCF77 = (D) german - (C) long wave signal (F) Frankfurt a.M. (77) frequency

INTRODUCTION
Page 6 GPS Satellite Clock 6870 - Ver. 15.01
2Introduction
The hopf radio controlled and crystal clock systems, well proved since 1975, have been ex-
tended by GPS reception unit 6870. This guarantees a world-wide use at highest precision. The
time basis is synchronised by GPS, a globally installed satellite system.
At a height of about 10.900 miles satellites circle around the earth twice a day on different orbits
and angles (see picture in the appendix). On board every satellite there is an atomic clock (ac-
curacy at least 1 x 10-12). The GPS reception units receive the orbit position and a GPS world-
time from as many satellites as possible. The position of the receiver is calculated from these
values first. Once the position is known, it is possible to calculate the delay time of the received
GPS world-time. The accuracy of the time therefore depends mainly on how well the position is
defined.
The world-time UTC
3
is calculated by subtracting the leap seconds from the GPS-world-time
(GPS-UTC), at present (1994) the world-time lags 8 seconds behind GPS-UTC. The difference
is not constant, it changes with every insertion of a leap second. For every place on earth it is
possible to enter the difference to UTC time and the local changeover points for summer/ win-
tertime by means of the key-pad of the system. Thus the local time is available at high precision
for further use.
The following interfaces are available as a standard:
serial RS232 interface
serial RS422 interface
DCF77 simulated antenna output
3 optical coupler outputs
Other interface combinations like RS232/TTY or RS232/RS232 are available optionally.
3
UTC = universal time coordinated

COMMISSIONING
GPS Satellite Clock 6870 - Ver. 15.01 Page 7
3Commissioning
3.1 Voltage Supply
The system is supplied with a voltage of 18-60V DC. When connecting the voltage make sure
that the voltage and polarity are correct. As the snap-in module is completely potential free in-
side, it must be set to the necessary potential by means of the earthing screw on the rear.
Please Note: REVERSED POLARITY OF THE OPERATING VOLTAGE DOES NOT DESTROY THE
PACKAGE.THERE IS A BRIEF CURRENT OF 1A. AFTER A REVERSED POLARITY THE
DEVICE MUST BE DISCONNECTED FROM THE VOLTAGE SUPPLY FOR 20 SEC.NO-
BODY BUT SPECIALISED PERSONNEL MUST CARRY OUT THE COMMISSIONING.
3.2 Antenna Installation
The connection to the antenna system is made by the female connector marked "GPS-In".
The correct installation of the antenna system can be found in the Appendix GPS (General
System Information GPS).
3.3 Default Button in the Front Panel
Pressing the "DEF" button on the front puts the clock in the delivery status. It must be pressed
for about 10sec. until the LED "CLK" stops flashing. Release the button and the clock is put in-
to the following standard setting.
The parameter of both interfaces (COM0 + COM1) will be set back!
Delivery status:
baud rate 9600 Baud
8 data bit
1 stop bit
no parity
transmission data string (6021)
with control characters (STX/ETX)
without second advance
transmission every second
3.4 LED "CLK"
The green status LED indicates the synchronisation status of the clock. Flashing at 2 Hz pulse
means that the clock is running in crystal operation. This status is shown after switching the
clock on or when the time-out time for the radio-bit has been exceeded (see pt. DCF77 simula-
tion and radio-bit) when the reception is disturbed. Flashing at 1Hz pulse means that the clock
is running in radio operation.
3.5 Control LED C1-C3
The LED C1-C3 indicate the switching status of the three optical couplers. A lit LED indicates
that the corresponding optical coupler is switched active.

COMMISSIONING
Page 8 GPS Satellite Clock 6870 - Ver. 15.01
3.6 Set-up via Remote Software
All the settings on the device can be carried out with the supplied software (GPS_6870.EXE) via
one of the both serial interfaces.
At the same time only one service software might have access to the device by one of the serial
interfaces.
3.6.1 Pre-conditions of the System for the Remote Software
The program requires a PC/Notebook with a free serial interface and the operating system Mi-
crosoft Windows from 3.x, 95, or NT. A free serial interface (COM 1 ... COM 8) is needed for the
data traffic with the clock. Before the beginning of a data transmission, the software checks the
existence of a free COM-port.
3.6.2 Hints for the Installation of the Remote Software
The software is supplied on a 3.5 inch disc and should be copied into its own directory in the
remote computer (PC) (e.g. C:\HOPF6870). The supplied serial interface cable must be con-
nected between the computer and the GPS system. Then the software is ready for operation.
When the voltage supply and the antenna are connected the program can be started.
The software automatically finds the first free COM-port (1-8) and shows the connection in the
main window of the application "program connected with". This process may be ignored (see
pt. What you should know). Here you will find the actual parameter settings for the serial com-
munication and possibly the file used for the serial parameter. If a different port should be used
the program has to be started again till the right port is connected. This port can be set-up in the
file GPS_INIT.INI (see 3.6.3).
In the main window of the application you will find all the Windows user elements like pull-down
menu, switches etc. You can operate the software either by mouse or by the key-pad of your
computer.
We advise Windows beginners to become acquainted with the Windows operations using the
Windows teaching program. Start the teaching program in the program manager or explorer un-
der the menu item Help. You can find further instructions on how to use Window applications in
your Microsoft Windows manual.

COMMISSIONING
GPS Satellite Clock 6870 - Ver. 15.01 Page 9
3.6.3 What You Should Know
During the first installation GPS_6870.EXE (the file GPS_INIT.INI must be missing!) sets the
transmission parameter in the PC for the communication with the GPS device to the following
values.
baud rate 9600 baud
data bit 8
stop bit 1
parity bit no
These values must also be activated in the clock (status as delivered). The delivery status can
also be produced by pressing the default button (only COM 0 / see pt. "Default Button in the
Front Panel").
The changing of the parameter in the clock require also changing the setting of the COM-port of
your computer. Therefore changed parameters are stored in a text file, so that they are availa-
ble after a new call-up of the program. The file will be built automatically when the standard pa-
rameter have changed.
The file is in the same directory as the program GPS_6870 and it is called:
GPS_INIT.INI
If necessary this file can also be edited manually. But the settings must correspond with the val-
ues of the particular serial interface of the clock.
Structure of the file GPS_INIT.INI:
[serial parameter]
string=9600,N,8,1
Only the part of the parameter String = may be altered
example:
old 9600,N,8,1
new 19200,E,7,2
The program works with these settings when the file is stored and GPS_6870.EXE restarted.
Please Note: IN CASE OF DOUBT YOU CAN DELETE THE FILE GPS_INIT.INI.THE PROGRAM THEN
STARTS WITH THE ABOVE STANDARD SETTINGS.
From version 4.02 of the remote software upwards, the following entry in the file GPS_INIT.INI
presets a serial port of the computer.
[serial Parameter]
Port=COM1
If the above line exists in the file GPS_INIT.INI,a window indicates after the start of the pro-
gramme that this port is used.

COMMISSIONING
Page 10 GPS Satellite Clock 6870 - Ver. 15.01
You can save and load individual parameter settings under the menu item "communication"
item "load/save serial parameter". The program stores these initialisation files for individual
user configurations with the extension *.CST. These files can be edited manually corresponding
with the above described ini-file. After loading a CST file the program automatically takes over
the new settings and displays them in the main window.
3.6.4 Possible Errors in the Transmission with GPS-6870.EXE
Check if the connection cable PC-clock has a defect. There must be a connection be-
tween the signals.
Please Note: DEPENDING ON THE INTERFACE VERSION THERE ARE FURTHER SIGNALS ON THE
9 POLE SUB-D PLUG X2.THEREFORE ONLY THE FOLLOWING CONNECTIONS ARE
VALID FOR THE COMMUNICATON WITH THE REMOTE SOFTWARE.
PC
Pin
Clock
Pin
TxD
3
RxD
2
RxD
2
TxD
3
GND
5
GND
5
Check whether the connection cable is connected to the interface named by
GPS_6870.EXE.
If a transmission to the 6870 is not possible despite the correct connection there is an er-
ror in the parameter setting for the interface of the PC and the snap-in module. In this
case key "DEF" must be pressed for 10 seconds to put the interface of 6870 into the
standard setting. Then the program GPS_6870.EXE must be closed and the file
GPS_INIT.INI must be deleted on the PC. The program GPS_6870.EXE must be execut-
ed again.
System 6870 not ready for operation (e.g. no operating voltage).