hopf Elektronik GmbH 7001GPS User manual

_____________________________________________________________
Technical Manual
Satellite Clock System
Model 7001GPS
with Control Board 7020GPS
ENGLISH
Version: 08.00 - 13.09.2007
_____________________________________________________________
Valid for Devices 7001GPS with FIRMWARE Version: 08.xx
and REMOTE-SOFTWARE Version: 00.00
Industriefunkuhren

2 / 44 7001GPS Satellite Clock System - V08.00
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [email protected]

INPORTANT NOTES
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hopf Elektronik GmbH
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Version number (Firmware / Manual)
THE FIRST TWO DIGITS OF THE VERSION NUMBER OF THE TECHNICAL MANUAL AND
THE FIRST TWO DIGITS OF THE FIRMWARE VERSION MUST COMPLY WITH
EACH OTHER. THEY INDICATE THE FUNCTIONAL CORRELATION BETWEEN DEVICE AND
TECHNICAL MANUAL.
THE DIGITS AFTER THE POINT IN THE VERSION NUMBER INDICATE CORRECTIONS IN
THE FIRMWARE / MANUAL THAT ARE OF NO SIGNIFICANCE FOR THE FUNCTION.
Downloading Technical Manuals
All current manuals of our products are available free of charge via our homepage on the
Internet.
Homepage: http://www.hopf.com
E-Mail: [email protected]
Symbols and Characters
Operational Reliability
Disregard may cause damages to persons or material.
Functionality
Disregard may impact function of system/device.
Information
Notes and Information.

SERVICE RELIABILITY
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hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [email protected]
Safety regulations
The safety regulations and observance of the technical data serve to en-
sure trouble-free operation of the device and protection of persons and
material. It is therefore of utmost importance to observe and compliance
with these regulations.
If these are not complied with, then no claims may be made under the
terms of the warranty. No liability will be assumed for any ensuing dam-
age.
Safety of the device
This device has been manufactured in accordance with the latest techno-
logical standards and approved safety regulations
The device should only be put into operation by trained and qualified staff.
Care must be taken that all cable connections are laid and fixed in posi-
tion correctly. The device should only be operated with the voltage supply
indicated on the identification label.
The device should only be operated by qualified staff or employees who
have received specific instruction.
If a device must be opened for repair, this should only be carried out by
employees with appropriate qualifications or by hopf Elektronik GmbH.
Before a device is opened or a fuse is changed all power supplies must
be disconnected.
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 accord-
ingly.
The safety may be impaired when the device does not operate properly or
if it is obviously damaged.
CE-Conformity
This device fulfils the requirements of the EU directive
89/336/EWG "Electromagnetic compatibility" and 73/23/EWG "Low
voltage equipment".
Therefore the device bears the CE identification marking
(CE=Communauté Européenne)
CE = Communautes Europeénnes = European communities
The CE indicates to the controlling bodies that the product complies with the requirements of
the EU directive - especially with regard to protection of health and safety for the operator
and the user - and may be released for sale within the common markets.

TABLE OF CONTENTS
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hopf Elektronik GmbH
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Contents Page
1Brief Description of System 7001.................................................................................. 7
2Introduction..................................................................................................................... 9
2.1 Power Supply .............................................................................................................. 9
2.2 Antenna Installation..................................................................................................... 9
2.3 Fast Commissioning.................................................................................................. 10
3Description of System.................................................................................................. 11
3.1 Display ...................................................................................................................... 11
3.2 Standard Display....................................................................................................... 12
4Keypad........................................................................................................................... 13
4.1 Setup......................................................................................................................... 13
4.2 Key Functions ........................................................................................................... 13
4.2.1 General Information for Input ............................................................................................. 14
4.3 SET Functions........................................................................................................... 15
4.3.1 Time/Date Input.................................................................................................................. 15
4.3.2 Time Difference.................................................................................................................. 15
4.3.3 Time Zone Changeover ..................................................................................................... 16
4.3.4 Position .............................................................................................................................. 17
4.3.5 Control Byte ....................................................................................................................... 18
4.3.5.1 Bit7: Simulation of the Synchronisation Status "Radio"............................................................... 19
4.3.5.2 Bit6 - reserved ............................................................................................................................ 20
4.3.5.3 Bit 5 and Bit 4: Display Control ................................................................................................... 20
4.3.5.4 Bit 3 to Bit 0: Selection of Synchronisation Source ..................................................................... 20
4.3.6 System Byte ....................................................................................................................... 21
4.3.6.1 Bit 7: 3D / Position-fix Time Evaluation (2 Options) .................................................................... 22
4.3.6.2 Bit 6: Recognition of Time Leaps during the Synchronisation Process....................................... 22
4.3.6.3 Bit 5: Static/Dynamic Error Message .......................................................................................... 23
4.3.6.4 Bit 4: Error Message or PPS to 9-pole SUB-D Connector X1, Switch Box Control..................... 24
4.3.6.5 Bit 3: Master/Slave-String Time Base ......................................................................................... 24
4.3.6.6 Bit 2: Master/Slave-String Evaluation ......................................................................................... 25
4.3.6.7 Bit 1 and Bit 0: Summertime-/ Wintertime Switchover Signalling Bit........................................... 25
4.3.7 Switch on/off delay of the "Radio" Synchronisations Status .............................................. 26
4.3.8 DCF77 Simulation .............................................................................................................. 26
4.3.8.1 Bit 7 to Bit 2 ................................................................................................................................ 27
4.3.8.2 Bit 1 ............................................................................................................................................ 27
4.3.8.3 Bit 0 ............................................................................................................................................ 28
4.3.9 Error Priority ....................................................................................................................... 28
4.3.10 Set Keyword....................................................................................................................... 28
4.3.10.1 Delete Keyword .......................................................................................................................... 29
4.3.10.2 Keyword query............................................................................................................................ 29
4.3.10.3 Unlock......................................................................................................................................... 29

TABLE OF CONTENTS
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4.4 BOARDS ................................................................................................................... 30
4.4.1 BOARD 7406 (SYNC.-CLOCK) ......................................................................................... 30
4.4.2 BOARD 7270 / 7271 / 7272 (LAN)..................................................................................... 31
4.4.3 BOARD 7265 (IRIG-B ANALOG OUTPUT)....................................................................... 32
4.4.4 BOARD 7515 (GRID-TIME) ............................................................................................... 32
4.5 Show Functions........................................................................................................ 33
4.5.1 General Information ........................................................................................................... 33
4.5.2 Changeover Times............................................................................................................. 34
4.5.3 Satellite Values .................................................................................................................. 34
4.5.3.1 Interpretation of Errors................................................................................................................ 35
4.5.4 Position Display.................................................................................................................. 36
4.5.5 Error Monitoring ................................................................................................................. 36
4.6 Monitor ...................................................................................................................... 38
4.7 Prog-Reset ................................................................................................................ 38
4.8 Master Reset............................................................................................................. 38
5Board interfaces ........................................................................................................... 39
5.1 Serial Interface .......................................................................................................... 39
5.1.1 Interface Allocation............................................................................................................. 39
5.1.2 Standard Data Output RS232/RS422............................................................................... 39
5.1.2.1 Status in Data String Master-Slave............................................................................................ 41
5.1.2.2 Example of a transmitted Data String Master-Slave ................................................................... 41
5.1.3 Programme Update............................................................................................................ 41
6Technical Data System 7001........................................................................................ 42

BRIEF DESCRIPTION OF SYSTEM 7001
7001GPS Satellite Clock System - V08.00 7 / 44
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [email protected]
1 Brief Description of System 7001
The hopf System 7001 is a microprocessor system with a modular structure. Each main
board within this Eurocard system has its own microprocessor. So time-critical tasks can be
solved easily on the boards themselves. The modular concept enables individual configura-
tion of systems according to customer specifications. Moreover this concept guarantees
simple servicing.
Board 7020
This board replaces the 7015 Control Board and, as a control board, forms part of the basic
version of the Master Clock System 7001. It has been prepared for the evaluation of different
synchronisation sources such as DCF77, GPS, serial data strings or IRIG-B1. In addition it
can be used for keypad- and display control and for bus communication with other boards in
the system. It is equipped with the standard quartz pulse generator and can also be fitted
with a oven-stabilized quartz generator to attain better freerunning properties.
Board 7112 / 7121
With the optical coupler or relay board 24 bits can be emitted potential-free. 8 potential-free
inputs are available for output control. The optical coupler and relay boards are pin-
compatible with each other.
• Board 7112 optical coupler board
• Board 7121 relay board
Board 7201
The serial interface board 7201 emits a data string either via an RS232c (V.24),
RS422 (V.11) or a passive TTY interface. The transmission format and the method of output
are adjusted on the DIP-switch on the board.
Board 7210
This board receives the transmission data string TxD from the main board 7200 / 7201 or
7220 / 7221 in TTL level and duplicates this via 4 x RS232-, 4 x RS422- and 4 x active or
passive TTY interface.
Board 7221
On this serial interface board there is a full-duplex interface and 7 duplicated transmission
data strings via RS232 and RS422 hardware.
Board 7245
On this board there is a serial full-duplex interface and 4 multipliers for the transmission line
TxD. The interface hardware is designed for the RS232 and RS422 level. All the interfaces
are set up potential-free to each other and to the subordinated logic. In addition there are 4
potential-free minute pulses.
Board 7265
On this board there are 4 analogue switches each with 4 inputs. Connected to these inputs
are the signals IRIG-B 12x, IRIG-B 00x and PPS pulse created on the board itself and also
an external input for the frequency boards 7530 and 7550. The inputs are switched through
to the outputs via DIP switches. The output signals are at BNC connectors.
1not implemented yet

BRIEF DESCRIPTION OF SYSTEM 7001
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Board 7270
On this board is an Ethernet interface 10BaseT or 10/100BaseT which serves as a 'Network
Time Server' in local networks. Various configurations can be made via the keypad. Either
NTP or SINEC-H1 string can be used as time protocols.
Board 7271
On this board is an Ethernet interface 10/100BaseT which serves as a 'Network Time Server'
in local networks. NTP is used as time protocol 2.
Board 7317
On this board there are 4 potential-free DCF77 antenna simulations.
Board 7406
On this board are all the required modules for the output of 2 independent synchronous lines
for pole-alternating pulse operation or DCF77 time code clocks.
Board 7515
On the network analysis board 7515 there is an independent microprocessor system for the
following tasks.
• Calculation of network frequency
• Serial interface to large displays or superordinated computers
• Bus interface
• Calculation of network time
• Calculation of time difference in msec.
• Calculation of time difference network / system time in mHz
• AD converter for the power display in MW
2A variety of management and monitoring functions are available. Basic parameters can be pro-
grammed via the system keypad. An extended parameterisation can be executed via a web browser.

INTRODUCTION
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hopf Elektronik GmbH
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2 Introduction
The hopf radio-controlled quartz clock system 7001, reliably proven since 1993, has now
been equipped with a new base board (7020). It can be synchronised through different time
code sources such as DCF77, GPS, IRIG-B3or serial data strings.
Additionally, the combination of 2 time code sources is possible in order to increase data se-
curity (see Chapter 4.3.6 System Byte).
Together with the standard quartz generator the base board 7020 can also be equipped with
a heat-stabilized quartz generator which can increase the freerunning accuracy of the sys-
tem to 2 x 10E-11 when synchronising via GPS.
As a result of the above-mentioned features this system is suitable for use as a Mas-
ter Clock System.
2.1 Power Supply
Since the system can be provided with a variety of power supply units, it is important, when
connecting the voltage, to pay attention to the voltage level and the polarity.
The following voltage supplies are standard:
• 230 V AC +10%, -15% (Standard)
• 120 V AC +10%, -15% (Option)
• 80 V DC (60 V - 120 V) (Option)
• 48 V DC (36 V - 72 V) (Option)
• 24 V DC (18 V - 36 V) (Option)
Other voltage supplies are possible on request.
2.2 Antenna Installation
If GPS or DCF77 are to be used to synchronise the Master Clock System 7001, then it is
necessary to install the correct antenna. More details can be found in the GPS or DCF77
appendix.
3not implemented yet

INTRODUCTION
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2.3 Fast Commissioning
GPS Master Clock Systems
• Connect voltage
• Switch on voltage
• Enter local time (approx.)
• Enter time difference
• Enter switchover time S ÖD
• Enter switchover time D ÖS
• Enter system status GPSM or adjust GPSM+
• For GPSM+ connect serial interface
• Connect GPS antenna
• Start master reset after approx. 10 minutes
DCF77 Master Clock Systems
• Connect voltage
• Switch on voltage
• Enter time difference
• Enter switchover time S ÖD (not always necessary)
• Enter switchover time D ÖS (not always necessary)
• Select appropriate DCF77 system status
• Connect synchronisation source DCF77 pulse, DCF77 antenna or serial interface

DESCRIPTION OF SYSTEM
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hopf Elektronik GmbH
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3 Description of System
3.1 Display
After switching on the following frame appears in the 2x40-digit VFD display:
hopf-Elektronik MASTER-CLOCK
VERSION 08.00 10/SEP/2007
This frame remains in the display for about 3 seconds.
Afterwards, when first commissioning or when the equipment has been in voltage-free status
for at least 3 days, the following frame appears:
L.T: 100:00:00 2– – / 3– – / – – – / – – – –_4– – – GPS_M --10
UT: 500:00:00 6– – / 7– – / – – – / – – – – 8C_ 9 0,0 E-00 –11
The individual positions have the following meaning:
1. Row:
1L-T : 00:00:00
In these fields the local time is shown.
2Display of weekday abbreviations:
MO - TU - WE - TH - FR - SA - SU means (MO - DI - MI - DO - FR - SA - SO)
3Display of date:
day / abbreviation for month / year
4Status display:
Position 1 X-- "D" for daylight saving time
"S" for standard time.
Position 2 -X- "A" Notification of changeover to another time zone.
Notification is made approx. 1 hour before the changeover.
Position 3 --X "A" Notification of leap second
Information is given approx. 1 hour before the sec. is inserted.
Description of system
e.g. GPS Master System GPS_M
Further system abbreviations see Chapter 4.3.5 Control Byte

DESCRIPTION OF SYSTEM
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2. Row
5-7 In these positions the UTC world time is displayed analogue to the local time display.
8Display of internal status of the clock system (Time-/Synchronisation Status):
"-" = invalid time
"C"= the clock system operates in quartz mode (C = crystal).
"r" = the clock system operates synchronous to synchronisation source
"R"= the clock system operates synchronous to synchronisation source and the
quartz generator is controlled
9 In this position the quartz accuracy is displayed with which the internal clock operates.
The starting value for quartz accuracy depends on operating mode, e.g. for GPS Mas-
ter System GPS_M:
• 0,0 E-00 After switching on the system or a system reset the accuracy is
shown with this value, as long as no synchronisation of the internal
clock occurs.
• 9,9 E-07 with standard quartz (after first synchronisation of internal clock)
• 9,9 E-09 when using oven-stabilized quartz (after first synchronisation of in-
ternal clock)
10 In this position an "E" appears as soon as the error message is activated
11 After input of the keyword a "K" is displayed in this position
3.2 Standard Display
After a power failure of < 3 days the display starts with the internal backup clock information
supplied.

KEYPAD
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4 Keypad
The keypad consists of 42 keys, whereby there are 5 keys with double functions. The sec-
ond function on the double-function keys is activated via the key SHF (SHIFT) and is only
valid for the next key input.
4.1 Setup
ABCDE0 1
32KI
OP4 5
FGH
LMN
QRST
VWX Y
U67
Z89
SHF BS
HO
BR
DL
+
-
.
*
SP
,ENT
4.2 Key Functions
A ... Z Entering the alphabet in capital letters (with the exception of "J")
0 ... 9 Entering figures
SHF Shift function for following keys:
BS
HO
BR
DL
+
-
.
*
SP
,
BS
HO
BS = BACKSPACE, delete last input
HO = Home, delete complete line
BR
DL
BR = BREAK, cancel all key controls
DL = Delete, not in use at present.
+
–
Entering symbols for figure values
.
*
Entering a "dot" and "star"
SP
,
Entering a free display space.
Entering a "comma"

KEYPAD
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Keypad entries / system control
The main menu is activated by pressing the "ENT" key.
The display changes over from the standard frame, display of time information, or from
blanking4to the main menu.
Start frame:
SET:1 SHOW: 2 BOARDS:3 MON: 4
PROG-RESET: R MASTER-RESET:M
The individual modes have the following meaning:
SET: Enter or view set functions such as time/date, position, time offset etc.
SHOW: View information e.g. satellite values
BOARDS: Enter control functions for system extension boards
MON: Monitor function, this function is only used in-plant.
PROG.-R: By entering "R" in PROG.-R the programme is re-started on Board 7020.
MASTER-R: By entering "M" a hardware master reset of the whole system is started. All
boards in the system are resetted and re-started.
4.2.1 General Information for Input
When the appropriate figure or letter is entered the menu item requested appears or is exe-
cuted (reset). The individual menu items are designed with user commands.
With key "BR" it is possible to leave the input menu at any time and at any position.
The sub-functions of the menu group are shown on the display and are
accepted with "Y" = Yes
or rejected with "N" = No.
When "N" is entered the next sub-function is displayed. When "Y" is entered the appropriate
sub-function appears.
Some sub-functions display the old value input at the same time.
The cursor in the frame shows at which position the next input can be made.
Each input can be corrected with "BS" (Back Space).
Each new complete input must be finished with "ENT".If no new input is made but "ENT" is
pressed directly then the old value will be used.
If the input of only one piece of information is required then the display will return to the sub-
function inquiry when "ENT" is pressed.
If several inputs are required then, after "ENT" is pressed the cursor switches to the next in-
put position and only returns to the sub-function inquiry after the last input has been made.
4for display protection the display can be set to switch automatically to blank (see Chapter 4.3.5
Control Byte)

KEYPAD
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A false input symbol is either rejected immediately or checked for plausibility after "ENT" is
pressed. Then an "INPUT ERROR" message appears. After this the display returns to the
sub-function inquiry.
Not all the sub-function inquiries will always be needed or used. In the description, reference
is made at the beginning of each sub-function to the Master Clock version with which these
can be used. If such a function is called up by mistake, then this should be ended with "BR.
4.3 SET Functions
4.3.1 Time/Date Input
Valid for all systems
Selection frame:
INPUT TIME / DATE Y / N
hh.mm.ss DD.MM.YYYY
Input frame:
LOC.-TIME hh.mm.ss DD.MM.YYYY
>_ . . . . <
Local time can be set with this input function. The input is in the second line between the ar-
rows >...< and this input must be complete. For this purpose leading naughts must be used.
The individual positions have the following meaning:
hh hour range from 00 - 23
mm minute –– " –– from 00 - 59
ss second –– " –– from 00 - 59
DD day range from 01 - 31
MM month –– " –– from 01 - 12
YYYY year –– " –– from 2000 – 2099
4.3.2 Time Difference
Valid for all systems
Selection frame:
TIME OFFSET Y/N
Input frame:
TIME-OFFSET -> +01.00<- EAST=+ WEST=-
>_ . <
With this function the time difference between local time and world time (UTC time) is en-
tered. The symbol shows in which direction the local time deviates from world time.

KEYPAD
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The general rule is:
+ means east of,
- means west of the Greenwich Meridian.
In the upper line the old value saved is displayed.
Since most countries in the world select their time difference in full hours, the input is also in
steps of one hour.
e.g. + 05.00 ; - 11.00
However some countries move in time zone steps of half an hour. Here the input is com-
pleted with minutes.
e.g. + 05.30 ; - 08.30
4.3.3 Time Zone Changeover
Selection frame:
CHANGE-OVER DATE S - > D AND D -> S
S = STANDARD TIME D = DAYLIGHT TIME Y / N
Input frame:
S --> D hh.d.w.MM D -> S_hh.d.w.MM
- >_ . . . <- -> . . . <
With this input it is possible to enter the points in time at which there is a changeover from
daylight saving or standard time in the course of a year. The hour and the month at which
the changeover should take place are entered. The exact times are calculated automatically
from the date of the current year.
S ÖD the entered changeover time is valid for the changeover from Standard time
(winter time) to Daylight Saving Time (summer time)
D ÖS the entered changeover time is valid for the changeover from Daylight Saving
Time (summer time) to Standard time (winter time)
Both changeover times in the year can now be entered between the arrows.
If no Daylight Saving Time has been introduced at the location of the system or no change-
over is required, then a 0 (zero) should be assigned to all these values, so that an S for
standard time can be shown in the display as a time zone abbreviation. After the changeover
times have been entered the Master Clock System calculates the exact changeover time to
the nearest minute change and adopts these new values.
The individual inputs have the following meaning:
hh = the hour at which the changeover should take place 00 .. 23 h
d = the day of the week on which the changeover should take place
1 = Monday ... 7 = Sunday
w = shows in which week of the month the changeover should take place
1 ... 4 means 1 ... 4 week in the month
5 last week e.g. last Sunday in the month
MM = the month in which the changeover should take place

KEYPAD
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4.3.4 Position
Valid for all GPS systems
Selection frame:
Position LAT N/S LON E/W Y/N
(N)orth (S)outh (E)ast (W)est
With this function the geographic location of the equipment is entered when synchronisation
is via GPS. This function is useful when first commissioning, it shortens the re-initialisation of
the GPS receiver. Input can be in very rough steps. An exact degree setting is not neces-
sary.
Input frame:
LAT/LON P GG.MM p GGG.MM P=N/S p=E/W
- >_ . <-- > . <-
The input of latitude and longitude is in degrees and minutes.
The symbol for latitude is:
N northern hemisphere
S southern hemisphere
and for longitude:
E east of the Greenwich Meridian
W west of the Greenwich Meridian
First the latitude is entered under P GG.MM:
PN or S, North or South
GG latitude, degrees, from 00 - 89
MM latitude, minutes, from 00 - 59
The longitude is entered under p GGG.MM:
pE or W, East or West
GGG longitude, degrees, from 000 - 179
MM longitude, minutes, from 00 - 59

KEYPAD
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4.3.5 Control Byte
Validity: all systems
The control byte is used to select the synchronisation source for the system 7001 and to set
up the display control.
Selection screen
SET CONTROL BYTE Y/N
Input screen
OLD BYTE >00000001<
NEW BYTE >_ <
The function of the individual bits is as follows:
B7 Simulation of the synchronisation status "Radio"
0 Status of synchronisation is only set by the synchronisation source
1 Activating the operation mode R_SIM with simulation of the synchronisation status
"Radio"
B6 reserved
0 reserved, default: '0'
B5 B4 display control
0 0 The display is permanently on.
0 1 The brightness of the display is reduced to approx. 1/4 of normal intensity.
1 0 The display is switched off. Only a moving dot is visible on the display.
1 1
The display is switched off. Only a moving dot is visible on the display. In
addition, the brightness of the dot is reduced to 1/4 of normal intensity.
B3 B2 B1 B0 ID code Synchronisation Source
0 0 0 0 QUARTZ Quartz clock - synchronisation by quartz generator on
board only.
0 0 0 1 QUARZ+ not implemented
0 0 1 0 DCF_T Synchronisation via a DCF77 pulse.
0 0 1 1 DCF_A not implemented
0 1 0 0 MA_SL Synchronisation via a serial Master/Slave-String from
another hopf system.
0 1 0 1 GPS_M Synchronisation via a GPS receiver.
0 1 1 0 DCF_T+ Synchronisation via a DCF77 pulse + synchronisation via
a serial Master/Slave-String from another hopf system.
0 1 1 1 DCF_A+ not implemented
1 0 0 0 GPS_M+ Synchronisation via a GPS receiver + synchronisation via
a serial Master/Slave-String from another hopf system.

KEYPAD
7001GPS Satellite Clock System - V08.00 19 / 44
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [email protected]
4.3.5.1 Bit7: Simulation of the Synchronisation Status "Radio"
B7 Simulation of the synchronisation status "Radio"
0 Status of synchronisation is only set by the synchronisation source
1 Activating the operation mode R_SIM with simulation of the synchronisation
status “Radio”
Valid for all synchronisation modes
When the Control Byte Bit 7 is set to 1the control board 7020 simulates the synchronisa-
tion status 'R'. This function is helpful in particular in testing configurations with no antenna
or synchronisation source available when connected systems require a synchronisation
status “Radio” for correct function.
The setting influences the following functions and components of the System 7001:
• Indication of the operation mode R_SIM
• Indication of the synchronisation status “Radio”
• Data output which depends on or contains the synchronisation status
• ERROR – message concerning the synchronisation status
Overview system behaviour:
Activating the simulation of the synchronisation status „Radio“ (operation mode R_SIM)
Operation
Mode Time Status System Behaviour
Invalid
• Operation mode R_SIM will not be activated.
• The setting Control Byte Bit 7 remains stored fail-
safe. That means after a system reset or similar the
activation persists.
• Operation mode R_SIM is activated only after setting
a valid system time.
QUARZ
Valid
• Operation mode R_SIM will be activated immediately
and stored failsafe.
• Operation mode R_SIM can only be deactivated with
the setting Control Byte Bit 7 = 0.
Invalid
• Operation mode R_SIM will not be activated..
• The setting Control Byte Bit 7 remains stored fail-
safe. That means after a system reset or similar the
activation persists.
• Operation mode R_SIM is activated only after setting
a valid system time.
DCF_T
MA_SL
GPS_M
DCF_T+
GPS_M+ Valid
• Operation mode R_SIM will be activated immediately.
• Operation mode R_SIM will be automatically deacti-
vated after 4 hours or after a system reset or similar.
While the synchronisation status is “R” time leaps may occur when the op-
eration mode R_SIM is active:
• When the system time is set manually. The synchronisation status
will not be reset in this case.
• At synchronisation via the connected synchronisation source
(GPS_M, DCF_T, MA_SL etc.), when the system time deviates
from the time of the synchronisation source.

KEYPAD
20 / 44 7001GPS Satellite Clock System - V08.00
hopf Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [email protected]
4.3.5.2 Bit6 - reserved
This bit is reserved and '0' must be entered.
4.3.5.3 Bit 5 and Bit 4: Display Control
Bit 5 and Bit 4 control the blanking of the display. This feature can be used to delay the loss
of brightness of the display (see Table).
If an input key is pressed during blanking the display is re-initialised with the standard output
and normal brightness. This condition is maintained for approx. 4 minutes from the last key
stroke.
4.3.5.4 Bit 3 to Bit 0: Selection of Synchronisation Source
The synchronisation source for the system 7001 is selected with Bits 3, 2, 1, and 0. The cor-
responding identification code for the selected synchronisation source appears in the display
(see Chapter 4.3.5 Control Byte).
All other settings for Bits 3-0 not shown in the Table give an ERROR indication on the dis-
play in place of the system identifier and are not provided with a synchronisation mode.
A master reset is always carried out automatically after selection of the syn-
chronisation source with Bits 3-0 and confirmation with the "ENT" key.
Safety system (in GPS_M+ or DCF_T+ sync. modes only)
The safety system requires 2 independent synchronisation sources for synchronisation. Both
pieces of time information must be in agreement not only in respect of time but also as re-
gards supplementary information such as time zone, switchover signalling bit etc., otherwise
no internal clock system synchronisation takes place and an error message is output simul-
taneously. These systems can be used for simple TIME-PROOF applications.