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GE Reason RT430 Technical Manual

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GE
Grid Solutions
Reason RT430/RT434
GNSS Precision-Time Clock
Technical Manual
Platform Hardware Version: B
Platform Software Version: 08
Publication Reference: RT430-RT434-GNSS-TM-EN-HWB-8v1
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  • Page 1

    Grid Solutions Reason RT430/RT434 GNSS Precision-Time Clock Technical Manual Platform Hardware Version: B Platform Software Version: 08 Publication Reference: RT430-RT434-GNSS-TM-EN-HWB-8v1 imagination at work...

  • Page 3: Table Of Contents

    Contents Table of Figures List of Tables Chapter 1: Introduction Foreword Target Audience Accronyms and abbreviations Product Scope Available Models Key Features GNSS PTP / SNTP / NTP Parallel Redundancy Protocol (PRP) Stationary Mode Time Sync Flexibility Environmental Robustness Functional Overview Standards Compliance Chapter 2: Safety Information Health and Safety...

  • Page 4

    GNSS Antenna Terminal TTL Electrical Outputs Open-Collector Electrical Outputs Optical Outputs Amplitude Modulated Output Serial Port (RS232, RS422/485) Dry-Contact Relay Event Input Euro Type Connections Ethernet Communication Factory default settings Network port and communication protocols Equipment access Powering Up Preventive Maintenance Actions Preventive Actions Chapter 5: Operation Local Interface (HMI)

  • Page 5

    Network protocol Operation mode Delay mechanism Grandmaster Priority PTP Messages PTP - Configuration Summary Setup Configuration Management Password configuration Reset Satellites Almanac Stationary Mode Demo mode Log Files Reboot System Chapter 7: Maintenance Time Synchronization Failure (Locked Signaling) Locked indicator (HMI) Remote monitoring (Web Interface) Dry-contact relay (Locked) IRIG-B Signal...

  • Page 6

    Environment Type Test Dimensions, Weight Chapter 9: Ordering Options RT430 GNSS Cortec RT434 GNSS Cortec Chapter 10: Appendixes Appendix A – IRIG-B Standard Summary Appendix B – PTP Standard Concepts (IEEE1588) Description Definitions according to IEEE 1588 Standard Hierarchical Topology Multicast and Unicast Networks PTP Synchronization Network protocols...

  • Page 7: Table Of Figures

    Table of Figures Figure 1: Functional Overview of RT430/434 Figure 2: Front view of RT430 Figure 3: Front view of RT434 Figure 4: Rear view of RT430 Figure 5: Rear view of RT434 Figure 6: Location of Serial number, part number and outputs description. Figure 7: Pre-insulated tubular pin terminals Figure 8: Supply connector assembly Figure 9: RT430/RT434 Power Connection...

  • Page 8

    Figure 35: Section to configure PTP parameters Figure 36: Characteristics from PTP Power Profile IEEE C37.238:2011 Figure 37: Characteristics from PTP Power Profile IEEE C37.238:2011 Figure 38: Setup section in Web Interface Figure 39: Manual Time setting – only available in Demo Mode Figure 40: Section to update firmware Figure 41: Section to equipment upgrade –...

  • Page 9: List Of Tables

    List of Tables Table 1: Serial port pinout Table 2: Ethernet port 1 default settings Table 3: Ethernet port 2 default settings Table 4: Ethernet port 3 default settings (RT434) Table 5: Ethernet port 4 default settings (RT434) Table 6: Gateway and DNS Server default settings Table 7: Gateway and DNS Server Table 8: Factory default username and password Table 9: Summary of configurable network parameters...

  • Page 10

    Table 34: Safety tests Table 35: Environmental tests Table 36: Dimensions and weight specification RT430/434 Table 37: IRIG-B standard summary Table 38: ACEB Datagram Information Table 39: GPZDA Datagram Time Information Table 40: GPZDA Datagram Line Feed and Carriage Return Information Table 41: GPZDA Datagram Checksum Information Table 42: Meinberg Datagram Time Information Table 43: Meinberg Datagram Beginning and End Information...

  • Page 11: Chapter 1: Introduction

    RT430 and RT434 GNSS Precision-Time Clocks. Foreword This technical manual provides a functional and technical description of GE Reason RT43X Precision-Time Clocks, as well as a comprehensive set of instructions for using the devices. The level at which this manual is written assumes that you are already familiar with protection engineering and have experience in this discipline.

  • Page 12

    RT430/434 Chapter 1 – Introduction BMC - Best Master Clock; BNC - Bayonet Neil Councilman connector; Bps - Bytes per second; bps - Bits per second; CAT5 - Network Cable; PLC - Programmable Logic Controller; CMOS - Complementary Metal-Oxide-Semiconductor; DB9 - Connector do type D-subminiature; DC - Direct Current;...

  • Page 13: Product Scope

    Chapter 1 – Introduction RT430/434 TCP - Transmission Control Protocol; TMARK - Daily pulses with programmable time; TTL - Transistor-to-Transistor logic; TX - Data transmission; UDP - User Datagram Protocol; UTC - Universal Time Coordinate. Product Scope RT430/434 is a GNSS clock referenced to GPS and GLONASS satellites, whose main application is to be a source of temporal synchronization signals in different formats and protocols to synchronize internal clocks of equipment and systems based on digital processing.

  • Page 14: Key Features

    RT430/434 Chapter 1 – Introduction Key Features  GNSS clocks - GPS and GLONASS satellite systems as reference;  Mean time accuracy of 50 ns for IRIG-B/PPS signals;  IEEE 1588v2 PTP protocol, with better than 100ns accuracy;  PTP Profile for Power Utility Automation, in accordance with IEC 61850-9-:2016 standard;...

  • Page 15: Gnss

    “shadow” effects. PTP / SNTP / NTP The Reason RT430/434 offers the accurate PTP time protocol, which is defined by the IEEE 1588 standard, to precisely synchronize IED’s and computers over a LAN (or VLAN).

  • Page 16: Time Sync Flexibility

    RT430/434 Chapter 1 – Introduction Time Sync Flexibility The RT430 and RT434 are equipped with multiple connector types, from isolated electrical ports to optical fibers. Mostly of the channels can be individually configured to generate the protocol needed, such as IRIG-B004, PPS, DCF77 and freely configurable low frequency pulses.

  • Page 17: Functional Overview

    Chapter 1 – Introduction RT430/434 Functional Overview Figure 1: Functional Overview of RT430/434 Standards Compliance The device has undergone a range of extensive testing and certification processes to ensure and prove compatibility with all target markets. A detailed description of these criteria can be found in the Technical Specifications chapter.

  • Page 18: Chapter 2: Safety Information

    RT430/434 Chapter 2 – Safety Information Reason RT430/RT434 GNSS Precision-Time Clock Chapter 2: Safety Information This chapter provides information about the safe handling of the equipment. The equipment must be properly installed and handled in order to maintain it in a safe condition and to keep personnel safe at all times.

  • Page 19: Installation, Commissioning And Servicing

    Chapter 2 – Safety Information RT430/434 Risk of electric shock Ground terminal. Note: This symbol may also be used for a protective conductor (ground) terminal if that terminal is part of a terminal block or sub-assembly. Protective conductor (ground) terminal Both direct and alternating current Instructions on disposal requirements The term 'Ground' used in this manual is the direct equivalent of the European term...

  • Page 20

    RT430/434 Chapter 2 – Safety Information Always use the equipment as specified. Failure to do so will jeopardize the protection provided by the equipment. Removal of equipment panels or covers may expose hazardous live parts. Do not touch until the electrical power is removed.

  • Page 21: Fusing Requirements

    Chapter 2 – Safety Information RT430/434 Never manipulate liquid containers near the equipment even when it is powered off. Avoid modification to the wiring of panel when the system is running. Fusing Requirements A high rupture capacity (HRC) fuse type with a maximum current rating of 10 Amps and a minimum dc rating of 250 V dc may be used for the auxiliary supply (for example Red Spot type NIT or TIA).

  • Page 22: Pre-energization Checklist

    RT430/434 Chapter 2 – Safety Information Ground the equipment with the supplied PCT (Protective Conductor Terminal). Do not remove the PCT. The PCT is sometimes used to terminate cable screens. Always check the PCT’s integrity after adding or removing such ground connections.

  • Page 23: Peripheral Circuitry

    Chapter 2 – Safety Information RT430/434 Peripheral Circuitry Where external components such as resistors or voltage dependent resistors (VDRs) are used, these may present a risk of electric shock or burns if touched. Operation of computers and equipment connected to RT43x under environmental conditions such as temperature and humidity that exceed the conditions specified in their respective manuals can cause malfunctioning or even irreversible damage to them or the...

  • Page 24: Chapter 3: Hardware Design

    RT430/434 Chapter 3 – Hardware Design Reason RT430/RT434 GNSS Precision-Time Clock Chapter 3: Hardware Design This chapter demonstrates the main hardware characteristics from RT430 and RT434. Front View The front panel of the RT430/RT434 comprises a LCD display, two indicators and buttons to navigate through the screen.

  • Page 25: Network Ports

    Chapter 3 – Hardware Design RT430/434  Two TTL electrical outputs (BNC connectors) for synchronization, one of them insulated;  Two open collector outputs;  Locked contactor relay and one CMOS/TTL level input;  One amplitude-modulated output for IRIG-B124 signal; ...

  • Page 26: Chapter 4: Installation

    Check the contents against the packing list that goes with the product. If any of the content listed is missing, please contact GE Grid Solutions (see contact information in Maintenance chapter). Examine the unit for any shipping damage. If the unit is damaged or fails to operate, notify the shipping company without delay.

  • Page 27: Mounting

    Chapter 4 – Installation RT430/434 Mounting The equipment has been designed to be mounted in a standard 19-inch rack using four M6x15 screws. Keep adequate clearance for all connections. In particular, the optical fiber cables should be installed in compliance with the 30 mm minimum bending radius. For more information regarding the equipment dimensions, refer to the Technical Specification chapter.

  • Page 28: Grounding (earthing)

    RT430/434 Chapter 4 – Installation For AC power connection, the phase conductor must be applied to terminal (+/L), neutral conductor to terminal (-/N) in each of the supply terminals identified, Power 1 and Power 2. For DC power connection, the positive line should be applied to terminal (+/L), negative to terminal (-/N) in each of the supply terminals identified, Power 1 and Power 2.

  • Page 29: Figure 12: Recommended Position For Installing The Gnss Antenna

    Chapter 4 – Installation RT430/434 for more than a few hundred kilometers or was unpowered for many weeks. The dry- contact L in the rear panel closes when maximum accuracy is achieved. OCKED The antenna must be mounted outdoors, in a vertical position, with an unobstructed view of the sky.

  • Page 30: Ttl Electrical Outputs

    Chapter 4 – Installation Cables with lengths ranging from 15 m (50 ft) to 100 m (328 ft) can be ordered from GE Grid Solutions. For use of antennas and cables from other manufacturers, contact GE Grid Solutions for evaluation.

  • Page 31: Optical Outputs

    Chapter 4 – Installation RT430/434 Figure 15: Open collector electrical outputs The open-collector outputs require the use of an external resistor properly sized to limit current to a value below 300 mA. Figure 16: Connection diagram of the open-collector electrical outputs To scale the resistor use the relationship: ��...

  • Page 32: Amplitude Modulated Output

    RT430/434 Chapter 4 – Installation Figure 17: Optical outputs See the Technical Specification chapter for optical outputs technical information. Amplitude Modulated Output The RT430/434 has one amplitude-modulated output, which generates an IRIG-B124 signal. Use coaxial cables with an impedance of 50 Ω and a BNC connector on this output.

  • Page 33: Dry-contact Relay

    Chapter 4 – Installation RT430/434 OUT (RS232 level output with user-programmable signal) V+ (RS232 level voltage reference of the internal converter) 422/485 TX+ 422/485 TX- The bit-rate, format (number of data bits, party, number of stop bits) and datagram type can be configured using the Web Interface, as well as the type of signal transmitted by the pin OUT (pin 4).

  • Page 34: Euro Type Connections

    RT430/434 Chapter 4 – Installation The electrical output from the PTP Slave clock should be configured to send pulses in a time frequency and an event will be registered in a log file containing the pulse timestamp for each received pulse. The input accuracy is in the magnitude of ns. Figure 21: Event input Euro Type Connections The following information is available in the top of the unit, but if the equipment is...

  • Page 35: Factory Default Settings

    Chapter 4 – Installation RT430/434 Figure 23: Electrical communication interface via Ethernet network Factory default settings Table 2: Ethernet port 1 default settings IP Address 192.168.0.199 Netmask 255.255.255.0 Broadcast 192.168.0.255 Table 3: Ethernet port 2 default settings IP Address 192.168.1.199 Netmask 255.255.255.0 Broadcast...

  • Page 36: Network Port And Communication Protocols

    RT430/434 Chapter 4 – Installation Table 6: Gateway and DNS Server default settings Gateway (Ethernet 1) 192.168.0.254 Server DNS 192.168.0.254 The Ethernet parameters can be configured through the Web Interface. Network port and communication protocols To ensure unrestricted access to communication via Ethernet network, the following ports and protocols should be enabled: Table 7: Gateway and DNS Server Port...

  • Page 37: Preventive Maintenance Actions

    Preventive Maintenance Actions In view of the critical nature of the application, GE products should be checked at regular intervals to confirm they are operating correctly. GE products are designed for a life in excess of 20 years.

  • Page 38

    RT430/434 Chapter 4 – Installation Operating within this range supports the highest degree of equipment reliability, even though the equipment data sheets may state wider ranges of minimum and maximum temperature and humidity (for example, -40° C to 55° C and 5% to 95% RH).

  • Page 40: Chapter 5: Operation

    RT430/434 Chapter 5 – Operation Reason RT430/RT434 GNSS Precision-Time Clock Chapter 5: Operation This chapter introduces the Local and Remote Interface available for RT430/434. Local Interface (HMI) The RT430/434 front panel consists of a LCD display, two indicators and buttons to navigate through the screen.

  • Page 41: Web Interface (remote Access)

    Chapter 5 – Operation RT430/434 The Alarm indicator will light up for a brief period while the unit powers up. After concluding the initialization, the unit will start operating and this indicator should turn off. If Alarm indicator remains on, the unit is not operating normally and will require user attention.

  • Page 42: Monitoring Menus - Web Interface

    RT430/434 Chapter 5 – Operation Monitoring Menus – Web Interface The following sections will describe the monitoring menus from the Web Interface:  Status: monitoring the status of the unit in real time.  General Information: information of the unit system. ...

  • Page 43: General Information

    Chapter 5 – Operation RT430/434 after from last NTP request sent. Both NTP Graphic and NTP Client List does not have automatic refresh.  Channels: monitored satellites information (number, phase noise, azimuth and elevation). The background of Satellite number (Sat #) is green when receiving the health ephemeris data.

  • Page 44: Figure 30: Section Of Web Interface To Monitor Timestamps Of Event Input

    RT430/434 Chapter 5 – Operation Figure 30: Section of Web Interface to monitor timestamps of event input  Last Events: In the Timestamp area, it is possible to view the last ten timestamps from a signal received through the event input. The update of timestamps is not automatic.

  • Page 45: Chapter 6: Configuration

    This chapter describes how to configure the RT430/434. Web Interface The Reason RT430/434 GNSS Precision-Time Clock has a Web Interface for configuring network parameters, time parameters, time synchronization outputs and PTP standard, updating firmware, changing key, controlling access and manipulating configurations.

  • Page 46: Ethernet

    RT430/434 Chapter 6 – Configuration Once both entered, click on login and the equipment will update its configuration. A message will be displayed informing the status of the update. In case the new configuration is not transmitted to the unit, the changes will not be saved and will be discarded once the Web Interface is closed.

  • Page 47: Ethernet Ports

    Charter 6 – Configuration RT430/434 Figure 32: Enabling the PRP redundancy Ethernet Ports The Ethernet ports allow communication via TCP/IP or UDP/IP networks.  MAC Address: informs the MAC address of the network port.  The IP Address field allows entering the IP address of the network port (only decimal numbers).

  • Page 48: Time Settings

    RT430/434 Chapter 6 – Configuration The table below presents all configurable network parameters and its possible values and variables. Table 9: Summary of configurable network parameters Ethernet Ports MAC Address 00:00:00:00:00:00 Not configurable IP Address 0.0.0.0 Only decimal numbers Network Mask 0.0.0.0 Only decimal numbers Broadcast...

  • Page 49: Time Settings - Configuration Summary

    Charter 6 – Configuration RT430/434  When the option NTP – Send local time is selected, the local time is sent through NTP protocol. If this option is unselected, the UTC is sent. If NTP function was ordered, it is activated by default operating at unicast (client/server) mode.

  • Page 50: Time Signals

    RT430/434 Chapter 6 – Configuration Time Signals The Time Signals section of the Web Interface allows configuring the signals applied to the outputs of the unit. See figure below: Figure 34: Section to configure time signals applied in the outputs Outputs ...

  • Page 51: Serial Datagram

    Charter 6 – Configuration RT430/434 For each electrical, optical, open collector and serial output, it is possible to configure the following signals:  OFF - Output turned off;  PPS - Output with 1 pulse-per-second;  100PPS - Output with 100 pulses-per-second; ...

  • Page 52: Customizable Datagrams

    RT430/434 Chapter 6 – Configuration The field Speed allows choosing data transmission speed of the serial port, which can be 38400, 19200, 9600, 4800 or 1200 bps; The field Data allows defining the data bits, which can be 7 or 8; The field Parity allows choosing the serial port parity, which can be odd, even, or none;...

  • Page 53: Time Signals - Configuration Summary

    Charter 6 – Configuration RT430/434 ‘S’ or ‘_’ DST (‘S’ if DST ‘_’ in odder case) ‘_’ or ‘#’ Status (‘_’ if locked, ‘#’ in odder case) ‘_’ or ‘*’ Status (‘_’ if locked, ‘*’ in odder case) ‘_’ or ‘?’ Status (‘_’...

  • Page 54

    RT430/434 Chapter 6 – Configuration IRIG-B or DCF77 Polarity: normal or inverted Signal: OFF, PPS, 100PPS, PPX, PPM, TMARK, DMARK, RS232 IRIG-B, DCF77 or EVENT Polarity: normal or inverted Hour: 00 up to 23 TMARK Minutes: 00 up to 59 Seconds: 00 up to 59 Year: from 2012 to 2030 Month: January to December...

  • Page 55: Ptp Configuration

    Charter 6 – Configuration RT430/434 Stop bit: 1 or 2 PTP Configuration The PTP section from Web Interface allows the user to configure the parameters for the PTP protocol. To enable the PTP in RT430/434, mark the “PTP Enabled” box. If the field “Force operation as slave”...

  • Page 56: Figure 36: Characteristics From Ptp Power Profile Ieee C37.238:2011

    RT430/434 Chapter 6 – Configuration Figure 36: Characteristics from PTP Power Profile IEEE C37.238:2011  Power Utility – IEC/IEEE 61850-9-3/2016: profile with predetermined characteristics, where the user cannot change any major parameter from PTP, such as Network Protocol and Delay mechanism. The characteristics are shown in next figure.

  • Page 57: Comparison Between Ptp Power Profiles

    Charter 6 – Configuration RT430/434  P2P Default: profile partly configurable, with some predetermined parameters, which cannot be modified. The non-editable characteristics are shown in its respective fields. The non-editable characteristics are. Domain number 0. Priority 128 in both Ethernet ports. Operation as master only.

  • Page 58: Delay Mechanism

    RT430/434 Chapter 6 – Configuration Delay mechanism The RT430/434 is capable of measuring the delay between master and slave clocks using End-to-end and Peer-to-peer, according to IEEE1588 standard. The field Delay mechanism allows configuring the type of measurement of the delay, as follow: ...

  • Page 59: Table 14: Summary Of Configurable Ptp Parameters

    Charter 6 – Configuration RT430/434 Table 14: Summary of configurable PTP parameters Profile Power IEEE C37.238 Predetermined parameters Power Utility IEC Predetermined parameters 61850-9-3 P2P Default Domain number 0, priority 128, and operation as master Custom All parameters are configurable Parameters Domain number From 0 to 255...

  • Page 60: Setup

    RT430/434 Chapter 6 – Configuration Setup The Setup section of the Web Interface allows updating the firmware, manipulating configurations, changing key and configuring password. Firmware and key change (equipment upgrade) instructions are described in Maintenance chapter. Figure 38: Setup section in Web Interface RT430/434...

  • Page 61: Configuration Management

    Charter 6 – Configuration RT430/434 Configuration Management  Backup Configuration: It is possible to receive a file with the current configuration of the unit and store it in a directory on the computer. Saving the final configuration of the unit as a backup is recommended. Download: allows saving the current configuration of the unit in “.rt430”...

  • Page 62: Log Files

    RT430/434 Chapter 6 – Configuration as time reference. In demo mode, the Locked Led will remain alight and the dry contact relay opened. When the Demo Mode is activated, it is possible to configure the date and time manually, in Time Settings tab from equipment Web Interface. All time protocols work in Demo Mode: PTP, NTP, SNTP, IRIG-B and all other low frequency signals.

  • Page 63: Chapter 7: Maintenance

    Chapter 7 – Maintenance RT430/434 Reason RT430/RT434 GNSS Precision-Time Clock Chapter 7: Maintenance This chapter describes the information to consider for an eventual maintenance. For any further assistance required please contact the information and call center as follows: GE Grid Solutions: Worldwide Contact Center Web: www.GEGridSolutions.com/contact...

  • Page 64: Remote Monitoring (web Interface)

    RT430/434 Chapter 7 – Maintenance Remote monitoring (Web Interface) In the monitoring area of the Web Interface it is shown the information Locked and the number of satellites when there is time reference in the GNSS antenna input, and Unlocked when reference is disconnected. Dry-contact relay (Locked) The RT430/434 has a dry-contact normally closed for remotely signaling the locked state of the unit.

  • Page 65: Equipment Upgrade - Key Change

    Chapter 7 – Maintenance RT430/434 Figure 40: Section to update firmware To update the unit firmware, access the Setup section of the Web Interface by typing the unit IP address in a default browser and follow the steps below: Click <S >...

  • Page 66: Cleaning Instructions

    GE Grid Solutions. In case of equipment malfunction the customer must get in contact with GE’s Contact Centre and never attempt to repair the device by his own. To request equipment repair service, call GE Grid Solutions to check out shipment options and receive the technical assistance order code.

  • Page 67: Chapter 8: Technical Specification

    Chapter 8 – Technical Specification RT430/434 Reason RT430/RT434 GNSS Precision-Time Clock Chapter 8: Technical Specification This chapter describes the technical specifications of the product. The information described in this manual goes for RT430 and RT434, unless specified. Power Supply Table 15: Power supply specifications...

  • Page 68: Gnss Antenna Type

    RT430/434 Chapter 8 – Technical Specification Connector BNC (female) Time Receiver Autonomous Integrity Monitoring (TRAIM) supported GNSS Antenna Type Table 17: GNSS Antenna specifications Type 3.3 V Active GNSS antenna (<20 mA) Frequency 1588 ± 3MHz Output / VSWR 2.0 Max Impedance 50 Ω...

  • Page 69: Surge Arrester

    Chapter 8 – Technical Specification RT430/434 TNC Male to BNC Male 75 m (246 ft) 305,9 < 0.2 dB/m connectors, RG8 Type TNC Male to BNC Male 100 m (328 ft) 407,5 < 0.2 dB/m connectors, RG8 Type Velocity of propagation Impedance 50 ohms Capacitance...

  • Page 70: Outputs

    RT430/434 Chapter 8 – Technical Specification Outputs Connectors See figures below to refer to the rear panel connectors of RT430/434. Figure 42: Rear panel connectors of RT430 (top) and RT434 (bottom) Table 21: RT430/434 rear panel connectors Indicator Description 2 power supplies (one is optional), AC/DC high voltage or DC low voltage 2 TTL electrical outputs using BNC connectors, one of them insulated 2 TTL electrical outputs using Euro Type connectors, one of them insulated;...

  • Page 71: Ttl Electrical Outputs

    Chapter 8 – Technical Specification RT430/434 TTL Electrical Outputs Table 22: Electrical outputs specifications 50 ns (mean) Time Accuracy 100 ns (peak) Number of Outputs TTL Voltage Level 5 Vdc High Level > 4.8 Vdc Low Level < 0.2 Vdc Impedance 18 Ω...

  • Page 72: Optical Outputs

    RT430/434 Chapter 8 – Technical Specification Optical Outputs Table 24: Optical outputs specifications 50 ns (mean) Time Accuracy 100 ns (peak) Number of Outputs Connector Wavelength 820 nm Multimode 50/125 µm, 62.5/125 µm, 100/140 µm Fiber Type or 200 µm HCS - 17.8 dBm (50 / 125 µm) - 14.0 dBm (62,5 / 125 µm) Emission power...

  • Page 73: Serial Port (rs232, Rs422/485)

    Chapter 8 – Technical Specification RT430/434 Serial Port (RS232, RS422/485) Table 26: RS232 or RS422/485 serial port specifications Number of Outputs Signal Level RS232 or RS422/485 Bitrate 1200, 2400, 4800, 9600, 19200 or 38400 bps Data bits 7 or 8 Stop bits 1 or 2 Parity...

  • Page 74: Precision Time Protocol Ptp (ieee 1588)

    RT430/434 Chapter 8 – Technical Specification Precision Time Protocol PTP (IEEE 1588) Table 29: PTP time synchronization protocol specifications Time Accuracy < 100 ns UDP/IPv4 (Layer 3) Protocols IEEE 802.3 (Layer 2) End-to-End (E2E) Delay Compensation Peer-to-Peer (P2P)  Power - IEEE C37.238/2011 ...

  • Page 75: Environment

    Chapter 8 – Technical Specification RT430/434 Environment Table 31: Environment specification Operating temperature range -40°C … +55°C (or –40°F to +131°F) As tested per IEC 60068-2-1 -40°C As tested per IEC 60068-2-2 +85°C Maximum operating altitude 2000 m (6560 ft) Relative humidity 5 …...

  • Page 76

    RT430/434 Chapter 8 – Technical Specification  A.C. and D.C. voltage dips Test level: 0% residual voltage Duration time A.C.: 1 cycle D.C.: 16,6 ms  Test level: 40% residual voltage Duration time A.C.: 12 cycles IEC 61000-4-11:2004 D.C.: 200ms IEC 61000-4-29:2000 ...

  • Page 77: Table 34: Safety Tests

    Chapter 8 – Technical Specification RT430/434 Radiated emission The definition of the limit frequency is based on the maximum internal frequency of the equipment. On RT430/434, the maximum internal frequency is 100 MHz. For this case, the levels of CISPR 11 satisfy the normative IEC CISPR22:2008 60255-26.

  • Page 78: Dimensions, Weight

    RT430/434 Chapter 8 – Technical Specification Dimensions, Weight Table 36: Dimensions and weight specification RT430/434 Height 44.45 mm (1 U; 1.75 in) Width (body) 430 mm (16.9 in) Depth 180 mm (7.1 in) Weight 2.7 kg (5.9 lbs) RT430/434 dimensions are shown below. Figure 43: RT430/434 Dimensions RT430/434...

  • Page 79: Chapter 9: Ordering Options

    Chapter 9 - Cortec RT430/434 Reason RT430/RT434 GNSS Precision-Time Clock Chapter 9: Ordering Options This chapter describes the CORTEC number formation from RT430 and RT434. RT430/434...

  • Page 80: Rt430 Gnss Cortec

    RT430/434 Chapter 9 - Cortec RT430 GNSS Cortec Issue H RT430/434...

  • Page 81: Rt434 Gnss Cortec

    Chapter 9 - Cortec RT430/434 RT434 GNSS Cortec Issue H RT430/434...

  • Page 83: Chapter 10

    Chapter 10 - Appendixes RT430/434 Reason RT430/RT434 GNSS Precision-Time Clock Chapter 10: Appendixes Appendix A – IRIG-B Standard Summary Table 37: IRIG-B standard summary reference bit (P + 10 ms seconds 1 seconds (0 ... 59 or 60) + 20 ms...

  • Page 84

    RT430/434 Chapter 10 - Appendixes + 150 ms minutes 10 + 160 ms minutes 20 + 170 ms minutes 40 + 180 ms index bit (0) + 190 ms position identifier 2 (P + 200 ms hours 1 hours (0 ... 23) + 210 ms hours 2 + 220 ms...

  • Page 85

    Chapter 10 - Appendixes RT430/434 + 380 ms days 80 + 390 ms position identifier 4 (P + 400 ms days 100 + 410 ms days 200 + 420 ms index bit (0) + 430 ms index bit (0) + 440 ms index bit (0) + 450 ms index bit (0)

  • Page 86

    RT430/434 Chapter 10 - Appendixes + 610 ms index bit (0) 1 during the minute before beginning or + 620 ms Daylight Saving Pending (DSP) end of DST + 630 ms Daylight Saving Time (DST) 1 during DST difference between local time and UTC + 640 ms Time Offset Sign (0=+, 1=-) (negative for West Greenwich)

  • Page 87

    Chapter 10 - Appendixes RT430/434 (0 ... 86399) + 810 ms time-of-day 2 + 820 ms time-of-day 4 + 830 ms time-of-day 8 + 840 ms time-of-day 16 time-of-day 32 + 850 ms + 860 ms time-of-day 64 + 870 ms time-of-day 128 + 880 ms time-of-day 256...

  • Page 88: Appendix B - Ptp Standard Concepts (ieee1588)

    RT430/434 Chapter 10 - Appendixes Appendix B – PTP Standard Concepts (IEEE1588) Description The Precision Time Protocol (PTP) is an ultimate time synchronization accuracy protocol for Ethernet networks. On a local area network, it achieves clock accuracy in the sub-micro second range, making it suitable for applications where synchronization is essential to the measurement system.

  • Page 89: Hierarchical Topology

    Chapter 10 - Appendixes RT430/434 serve as the source of time, i.e., be a master clock, and may synchronize to another clock, i.e., be a slave clock.  Ordinary Clock: According to IEEE1588 standard, an ordinary clock has a single PTP port in a domain and maintains the timescale used in the domain.

  • Page 90: Ptp Synchronization

    RT430/434 Chapter 10 - Appendixes The second revision of the standard also specifies the form of unicast communication where the clock master has to send time synchronization packets for each slave device connected to the network, which requires the master clock to have greater processing power and causes the network traffic to be more overloaded.

  • Page 91: Network Protocols

    Chapter 10 - Appendixes RT430/434 Network protocols IEEE1588 standard defines the network layers where the PTP protocol will be applied. It is possible to use PTP protocol in a network layer with IEEE 802.3 Ethernet (layer 2) or UDP/IPv4 (layer 3) connection. The layer 3 (UDP/IPv4) is used in more environments facilitating the compatibility of sending and receiving messages between the devices connected to the network.

  • Page 92: Master, Slave And Grandmaster Clocks

    RT430/434 Chapter 10 - Appendixes Master, Slave and Grandmaster clocks In PTP protocol, master clocks send message packets with Sync information, slave clocks receive and process the Sync messages and grandmaster clocks are the source of synchronization for the entire network. IEEE1588 standard specifies the Best Master Clock algorithm (BMC) which selects the best candidate to be elected the master of the network, used as time source.

  • Page 93: Appendix C - Serial Datagrams

    Chapter 10 - Appendixes RT430/434 Appendix C – Serial Datagrams RT430/434 can be configured to send datagrams through serial ports. The datagrams defined for the unit are ACEB, NEMEA GPZDA, and Meinberg. ACEB Datagrams ACEB datagram comprises 13 bytes, sent once per minute in the second second of the minute (i.e.

  • Page 94: Meinberg Datagram

    RT430/434 Chapter 10 - Appendixes Table 39: GPZDA Datagram Time Information Parameters Possible values Description 00 ... 23 hours 00 ... 59 minutes 00 ... 59 seconds 001 ... 366 Julian day 01 ... 31 day of the month 01 ... 12 month YYYY 2000 ...

  • Page 95: Table 42: Meinberg Datagram Time Information

    Chapter 10 - Appendixes RT430/434 Table 42: Meinberg Datagram Time Information Parameters Possible values Description 00 ... 23 hours 00 ... 59 minutes 00 ... 59 seconds 01 ... 31 day of the month 01 ... 12 month 00 ... 99 year (2 digits) 1 ...

  • Page 96: Appendix D - Antenna Delay Compensation

    Signal Attenuation Signal attenuation is related to cable type and overall cable length. When using the active antenna supplied by GE Grid Solutions, total attenuation should not exceed 32 Total attenuation can be computed by using: �� = ��...

  • Page 97: Table 46: Attenuation Of Antenna Cables

    Chapter 10 - Appendixes RT430/434 Table 46: Attenuation of antenna cables Cable length Typical delay 15 m (50 ft) 60 ns 20 m (82 ft) 100 ns 50 m (164 ft) 200 ns 75 m (246 ft) 300 ns 100 m (328 ft) 400 ns 125 m (410 ft) 500 ns...

  • Page 98: Appendix E - Application Examples

    Figure 44: Traditional x Modern Time Synchronization Application Example 2: System Wide Grandmaster Clock Using the RT430 along with GE JunglePAX is a great way to have PTP over a wide network. The next figure exemplifies an architecture which a given application has a local PTP Grandmaster clock, which commonly will be the Best Grandmaster Clock for the local IEDs.

  • Page 99: Application Example 3: Synchrophasor, Twfl And Process Bus Applications

    Chapter 10 - Appendixes RT430/434 Figure 45: System Wide Grandmaster Clock Application Example 3: Synchrophasor, TWFL and Process Bus Applications Requiring 1 µs time accuracy, this third example demonstrate the best way to synchronize devices used for Synchrophasor (PMU), Travelling Waves Fault Locators (TWFL) and Process Bus devices.

  • Page 100: Application Example 4: Ieee 1588 In A Prp Network

    RT430/434 Chapter 10 - Appendixes Figure 47: TWFL application using RT430/434 for Time Sync Figure 48: Process Bus application using PTP via the Station Bus network. Application Example 4: IEEE 1588 in a PRP Network RT430 offers the highly accurate IEEE 1588v2 Precision Time Protocol (PTP) combined with the Parallel Redundancy Protocol IEC 62439-3:2016, ensuring 100 ns accuracy and high availability in time synchronization over Ethernet networks.

  • Page 101: Application Example 5: Time Sync Expansion Using Rt411 And Rt412

    Chapter 10 - Appendixes RT430/434 Figure 49: Process Bus application using PTP via the Station Bus network. Application Example 5: Time Sync Expansion using RT411 and RT412 In applications where a higher number of TTL or ST outputs are required for IRIG- B/PPS, the RT411 is a cheap solution to expand the number of outputs from clocks.

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