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9.2 Time Strings

Page 31

9.2.6 Format of the NMEA 0183 String (RMC)

The NMEA String is a sequence of 65 ASCII characters starting with the `$GPRMC' character and ending with

the characters CR (carriage return) and LF (line-feed). The format is:

$GPRMC,hhmmss.ss,A,bbbb.bb,n,lllll.ll,e,0.0,0.0,ddmmyy,0.0,a*hh<CR><LF>

The letters printed in italics are replaced by ASCII numbers or letters where as the

other characters are part of the time string. The groups of characters as dened below:

$

Start character, ASCII Code 24h

sending with one bit accuracy at change of second

hhmmss.ss the current time:

hh

hours

(00..23)

mm

minutes

(00..59)

ss

seconds

(00..59, or 60 while leap second)

ss

fractions

of seconds

(1/10 ; 1/100)

A

Status (A = time data valid)

(V = time data not valid)

bbbb.bb

latitude of receiver position in degrees

leading signs are replaced by a space character (20h)

n

latitude, the following characters are possible:

`N'

north of equator

`S'

south d. equator

lllll.ll

longitude of receiver position in degrees

leading signs are replaced by a space character (20h)

e

longitude, the following characters are possible:

`E'

east of Greenwich

`W'

west of Greenwich

ddmmyy

the current date:

dd

day of month

(01..31)

mm

month

(01..12)

yy

year of

the century

(00..99)

a

magnetic variation

hh

checksum (EXOR over all characters except `$' and `*')

<CR>

Carriage Return, ASCII Code 0Dh

<LF>

Line Feed, ASCII Code 0Ah

GPS164

Date: 27th January 2016

31

Содержание GPS164-LQ/PPFO-3/REL-1/DAHS

Страница 1: ...MANUAL GPS164 PPFO 3 REL 1 DAHS 27th January 2016 Meinberg Radio Clocks GmbH Co KG ...

Страница 2: ......

Страница 3: ...Assembly of the GPS antenna surge protector 18 7 6 Powering Up the System 20 7 7 Change the Fuse 20 8 The Front Panel Layout 21 8 1 FAIL LED 21 8 2 LOCK LED 21 8 3 OCx LEDs 21 8 4 BSL Key hidden 21 9 Technical Specifications GPS164DAHS 22 9 1 Technical Speci cations GPS Antenna 24 9 2 Time Strings 25 9 2 1 Format of the Meinberg Standard Time String 25 9 2 2 Format of the Meinberg GPS Time String ...

Страница 4: ...Page 0 9 2 13 Format of the ION Time String 38 10 The program GPSMON32 39 10 1 Serial Connection 39 10 2 Network Connection 39 10 3 Online Help 40 11 Imprint 41 0 Date 27th January 2016 GPS164 ...

Страница 5: ... for later reference This manual aims to quali ed personnel only Quali ed personnel are those persons who are authorized to install commission and operated electrical systems and circuits in accordance with the respective national laws and safety regulations Please note the following symbols Symbol Beschreibung Description IEC 60417 5031 Gleichstrom Direct current IEC 60417 5032 Wechselstrom Alter...

Страница 6: ...Page 2 1 General Details 2 Date 27th January 2016 GPS164 ...

Страница 7: ...he applicable national rules WARNING DANGER TO LIFE BY ELECTRICAL SHOCK NO LIVE WORKING Wiring or any other work done the connectors particularly when connectors are opened may never be carried out when the installation is energized All connectors must be covered to prevent from accidental contact to life parts ADVICE ALWAYS ENSURE A PROPER INSTALLATION Additional safety information for installati...

Страница 8: ... AA The battery may not be short circuited charged or exposed to heat Battery exchange may only be carried out by the manufacturer Hints for cleaning and maintenance Attention Liquids can damage the electronics of the device Liquid enters the housing of the system and can cause a short circuit Clean the device with a soft dry or slightly damp cloth Do not use any solvents or detergents 2 1 Content...

Страница 9: ...rial port COM 0 COM 1 9pin D SUB female 7 GPS Antenna BNC DEUTSCH 1 Spannungsversorgung Sicherung 250 V 630 mA Träge 2 Störmelderelaisausgang 3pol DFK 3 Fiber Optik Ausgänge ST Stecker 4 Status LEDs Lock Fail 5 Taster BSL Boot Strap Loader 6 Serielle Schnittstelle COM 0 COM 1 9pol D SUB Buchse 7 GPS Antenne BNC COM 0 1 6 5 9 NO NC CO COM 1 1 6 5 9 100 V 240 V 50 Hz 60 Hz 100 V 240 V 2 1 6 N L 7 4 ...

Страница 10: ... with 3 active spares in six orbital planes 20000 km over ground provides a minimum of four satellites to be in view 24 hours a day at every point of the globe Four satellites need to be received simultaneously if both receiver position x y z and receiver clock o set from GPS system time must be computed All the satellites are monitored by control stations which determine the exact orbit parameter...

Страница 11: ...equency RG58 cable up to 250 meters without additional amplifier IF circuit microcontroller with Flash Memory correlator DCF77 simulation master oscillator D A converter GPS164xHS SRAM EEPROM data memories real time clock power 19 72VDC DHS 85 264VAC AHS 100 240VDC DAHS simulated DCF77 output antenna power internal power sample clock data addr data clock clock DCF pulses clock clock control voltag...

Страница 12: ...the satellites navigation messages increases the accuracy of the board s TCXO to 5x10 9 and automatically compensates the oscillators aging The last recent value is restored from the battery memory at power up 6 1 Time Zone and Daylight Saving GPS system time di ers from the universal time scale UTC Universal Time Coordinated by the number of leap seconds which have been inserted into the UTC time...

Страница 13: ...ime marks are representing the local time as con gured by the user Time zone of the signal is con gurable to either local time or UTC DCF77 M59 Generates a modi ed DCF77 telegram with a 500 ms pulse inserted in the 59th second gap Time zone of the signal is con gurable to either local time or UTC Single Shot Mode A single pulse of programmable length is generated once a day at a programmable point...

Страница 14: ...port COM0 6 4 Time code outputs 6 4 1 Introduction The transmission of coded timing signals began to take on widespread importance in the early 1950 s Especially the US missile and space programs were the forces behind the development of these time codes which were used for the correlation of data The de nition of time code formats was completely arbitrary and left to the individual ideas of each ...

Страница 15: ...nsions for date timezone daylight saving and leap second in control functions CF segment also see table Assignment of CF segment in IEEE1344 mode g C37 118 C37 118 DC Code acc C37 118 100 pps no carrier BCD time of year SBS time of day C37 118 extensions for date timezone daylight saving and leap second in control functions CF segment also see table Assignment of CF segment in IEEE1344 mode but si...

Страница 16: ...Page 12 6 GPS164 Features 6 4 4 IRIG Standard Format 12 Date 27th January 2016 GPS164 ...

Страница 17: ...6 4 Time code outputs Page 13 6 4 5 AFNOR Standard Format GPS164 Date 27th January 2016 13 ...

Страница 18: ... Saving Time set during daylight saving time 64 Timezone O set Sign sign of TZ o set 0 1 65 TZ O set binary encoded 1 66 TZ O set binary encoded 2 O set from IRIG time to UTC time 67 TZ O set binary encoded 4 Encoded IRIG time plus TZ O set equals UTC at all times 68 TZ O set binary encoded 8 69 Position Identi er P7 70 TZ O set 0 5 hour set if additional half hour o set 71 TFOM Time gure of merit...

Страница 19: ...contact line colors by DIN VDE 0293 308 torque min 0 5 Nm torque max 0 6 Nm Power MSTB 2 5 5 STF 5 08 powerline H05VV F 3G min 0 75 mm2 with connector housing also see 7 1 max 2 5 mm2 with ferrules line colors by DIN VDE 0293 308 torque min 0 5 Nm torque max 0 6 Nm Type of cable WARNING DANGER TO LIFE BY ELECTRICAL SHOCK NO LIVE WORKING Do not carry out electrical installation on open connectors t...

Страница 20: ...NG Terminals of the power connector are energized at dangerous voltage levels Do not carry out electrical works when terminals or cables are energized All connectors must be equipped with suitable covers to prevent from electrical shock or hazard 7 2 Assignment of the DSUB connectors The serial ports COM0 and COM1 are accessible via nine pole DSUB connectors in the frontpanel These RS 232 interfac...

Страница 21: ...C relay contact is activated NO NC CO Error Technical Speci cation Switching voltage current AC resistive load max 250 V 1 A Switching voltage current DC resistive load max 230 V 0 1 A max 30 V 1 A Response time 10 ms Isolation coil contact 4 kV Error Mode CO NC NO Error CO NC connected Normal Operation Mode CO NC NO Normal Operation CO NO connected WARNING DANGER TO LIFE BYELECTRICALSHOCK NO LIVE...

Страница 22: ...nna diplexer The total length of one antenna line between antenna diplexer and receiver must not be longer than the max lenght shown in the table down below The position of the diplexer in the antenna line does not matter High voltage protectors must be installed directly after entering the indoors The optional surge protection kit is not for outdoor usage Note If the antenna cable was assembled b...

Страница 23: ...ting the GPS Antenna Page 19 Due to extremely high currents associated with lightning no surge protection device can provide absolute safety from the impacts caused by lightning GPS164 Date 27th January 2016 19 ...

Страница 24: ... been disconnected the receiver has to scan for a satellite and read in the current almanacs This mode is called Cold Boot It takes 12 minutes until the new almanac is complete and the system switches to Warm Boot mode scanning for other satellites In the default mode of operation neither pulse and synthesizer outputs nor the serial ports will be enabled after power up until synchronization has be...

Страница 25: ... on board software must be upgraded or modi ed the new rmware can be downloaded to the in ternal ash memory via the serial port COM0 There is no need to open the metal case and insert a new EPROM If the BSL key behind the front panel is pressed while the system is powered up a bootstrap loader is acti vated and waits for instructions from the serial port COM0 The new rmware can be sent to the GPS1...

Страница 26: ...m connector FH ST case for 50 125 GI or 62 5 125 GI bre coupled optical power 15 µW 18 dBm into 62 5 125 GI bre or 12 µW 19 dBm into 50 125 GI bre CLASS 1 LED PRODUCT status indicated by LED ACCURACY OF PULSES better than 250 ns after synchronization and 20 minutes of operation better than 3 µs during the rst 20 minutes of operation SERIAL PORTS 2 independant asynchronous serial ports galvanic iso...

Страница 27: ... H x B x T PROTECTION RATING IP20 PROTECTION CLASS 1 Ground connection by supply terminal AMBIENT TEMPERATURE operation 0 C to 50 C storage 30 C bis 70 C HUMIDITY max 85 not condensing OPERATING HEIGHT max 2000 m GPS164 Date 27th January 2016 23 ...

Страница 28: ...9 MHz CONVERTER local oscillator to converter frequency 10 MHz rst IF frequency 35 4 MHz POWER REQUIREMENTS 12V 18V 100mA supplied via antenna cable CONNECTOR N Type female AMBIENT TEMPERATURE 40 65 C HOUSING ABS plastic case for outdoor installation IP66 Physical Dimension 44 44 240 240 140 140 450 450 70 70 M6 M6 180 180 68 68 84 84 6 6 24 Date 27th January 2016 GPS164 ...

Страница 29: ...ile leap second uv clock status characters depending on clock type u GPS clock is running free without exact synchr PZF time frame not synchronized DCF77 clock has not synchronized after reset space 20h GPS clock is synchronous base accuracy is reached PZF time frame is synchronized DCF77 clock has synchronized after reset v GPS receiver has not checked its position PZF DCF77 clock currently runs ...

Страница 30: ... STX Start Of Text ASCII code 02h tt mm jj the current date tt day of month 01 31 mm month 01 12 jj year of the century 00 99 w the day of the week 1 7 1 monday hh mm ss the current time hh hours 00 23 mm minutes 00 59 ss seconds 00 59 or 60 while leap second uv clock status characters u clock is running free without exact synchr space 20h clock is synchronous base accuracy is reached v receiver h...

Страница 31: ...ers whereas the other characters are part of the time string The groups of characters as de ned below x 0 or 1 corresponding on the number of the capture input _ ASCII space 20h dd mm yy the capture date dd day of month 01 31 mm month 01 12 yy year of the century 00 99 hh mm ss f the capture time hh hours 00 23 mm minutes 00 59 ss seconds 00 59 or 60 while leap second f fractions of second 7 digit...

Страница 32: ...31 mm month 01 12 yy year of the century 00 99 w the day of the week 1 7 1 Monday hh mm ss the current time hh hours 00 23 mm minutes 00 59 ss seconds 00 59 or 60 while leap second xxxx time zone indicator UTC Universal Time Coordinated formerly GMT CET European Standard Time daylight saving disabled CEST European Summertime daylight saving enabled u clock status characters clock has not synchroni...

Страница 33: ...et of local timezone related to UTC in hours and minutes ac clock status characters a clock has not synchronized after reset space 20h clock has synchronized after reset c GPS receiver has not checked its position space 20h GPS receiver has determined its position d time zone indicator S CEST European Summertime daylight saving enabled CET European Standard Time daylight saving disabled f anouncem...

Страница 34: ...grees leading signs are replaced by a space character 20h e longitude the following characters are possible E east of Greenwich W west of Greenwich hhhh altitude above WGS84 ellipsoid in meters leading signs are replaced by a space character 20h ETX End Of Text ASCII Code 03h 30 Date 27th January 2016 GPS164 ...

Страница 35: ...hours 00 23 mm minutes 00 59 ss seconds 00 59 or 60 while leap second ss fractions of seconds 1 10 1 100 A Status A time data valid V time data not valid bbbb bb latitude of receiver position in degrees leading signs are replaced by a space character 20h n latitude the following characters are possible N north of equator S south d equator lllll ll longitude of receiver position in degrees leading ...

Страница 36: ...econd ss fractions of seconds 1 10 1 100 A Status A time data valid V time data not valid bbbb bbbbb latitude of receiver position in degrees leading signs are replaced by a space character 20h n latitude the following characters are possible N north of equator S south d equator lllll lllll longitude of receiver position in degrees leading signs are replaced by a space character 20h e longitude th...

Страница 37: ...s or letters where as the other characters are part of the time string The groups of characters as de ned below Start character ASCII Code 24h sending with one bit accuracy at change of second hhmmss ss the current UTC time hh hours 00 23 mm minutes 00 59 ss seconds 00 59 or 60 while leap second HH II the local timezone o set to UTC HH hours 00 13 II minutes 00 59 dd mm yy the current date dd day ...

Страница 38: ...II numbers whereas the other characters are part of the time string The groups of characters as de ned below yy mm tt the current date yy year of the century 00 99 mm month 01 12 dd day of month 01 31 _ Space ASCII code 20h hh mm ss f the current time hh hours 00 23 mm minutes 00 59 ss seconds 00 59 or 60 while leap second f milliseconds 000 999 cc Check sum EXCLUSIVE OR result of the previous cha...

Страница 39: ...by ASCII numbers whereas the other characters are part of the time string The groups of characters as de ned below T Start character sending with one bit accuracy at change of second yy mm dd the current date yy year of the century 00 99 mm month 01 12 dd day of month 01 31 ww the day of the week 01 07 01 monday hh mm ss the current time hh hours 00 23 mm minutes 00 59 ss seconds 00 59 or 60 while...

Страница 40: ...s whereas the other characters are part of the time string The groups of characters as de ned below X Control character code 58h sending with one bit accuracy at change of second G Control character code 47h U Control character code 55h yymmdd the current date yy year of the century 00 99 mm month 01 12 dd day of month 01 31 hh mm ss the current time hh hours 00 23 mm minutes 00 59 ss seconds 00 5...

Страница 41: ...italics are replaced by ASCII numbers whereas the other characters are part of the time string The groups of characters as de ned below SOH Start of Header ASCII control character sending with one bit accuracy at change of second ddd day of year 001 366 hh mm ss the current time hh hours 00 23 mm minutes 00 59 ss seconds 00 59 or 60 while leap second q Quality indicator space Time Sync GPS lock no...

Страница 42: ... in italics are replaced by ASCII numbers whereas the other characters are part of the time string The groups of characters as de ned below SOH Start of Header ASCII control character sending with one bit accuracy at change of second ddd day of year 001 366 hh mm ss the current time hh hours 00 23 mm minutes 00 59 ss seconds 00 59 or 60 while leap second q Quality indicator space Time Sync GPS loc...

Страница 43: ...in the same way as the PCs comport You can enforce an access if the GPS serial port is not con gured with appropriate parameters for communication Select the menu item Enforce Connection in menu Connection and click Start in the apperaring window Some rmware versions of the GPS receiver do not support this way of setting up a connection If Enforce Connection doesn t succeed apparently please chang...

Страница 44: ... started by clicking the menu item Help in menu Help In every program window a direct access to a related help topic can be obtained by pressing F1 The help language can be selected by clicking the menu items German English in the Help Menu 40 Date 27th January 2016 GPS164 ...

Страница 45: ... Meinberg Funkuhren GmbH Co KG Lange Wand 9 31812 Bad Pyrmont Germany Phone 49 0 52 81 93 09 0 Fax 49 0 52 81 93 09 30 Internet http www meinberg de Mail info meinberg de Date 2012 06 01 GPS164 Date 27th January 2016 41 ...

Страница 46: ...010 Limits and methods of measurement of Immunity characteristics of information technology equipment EN 61010 1 2010 Safety requirements for electrical equipment for measurement control CAT II Poll 2 and laboratory use EN 50581 2012 Technicaldocumentationfortheassessmentof electrical and electronic products with respect to the restriction of hazardous substances gemäß den Richtlinien 2014 30 EU E...

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