4 - Devices and Networks
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Questions and Answers

What setting must be configured for an Ethernet device to enable time synchronization?

  • Time Synch Ethernet Enabled (correct)
  • Communication settings
  • Time Synch ION Enabled
  • Clock and time synchronization

    • Which of the following is essential for proper setup of PowerLogic ION devices?

  • Setting up a communication network (correct)
  • Installing additional hardware
  • Programming the device firmware
  • Using third-party monitoring tools

    • What is included in the minimum PowerLogic device setup?

  • User interface customization options
  • IoT integration preferences
  • CT and PT ratios programmed (correct)
  • Advanced diagnostic tools

    • For a serial device, which option must be configured to enable time synchronization?

    <p>Time Synch ION Enabled</p> Signup and view all the answers

    Which configuration utility is recommended for device configuration in PowerLogic ION Setup?

    <p>Setup Assistant</p> Signup and view all the answers

    What type of device is BoardA.HVAC1?

    <p>ION 9000</p> Signup and view all the answers

    Which communication type is used by the PM5100 series device?

    <p>Serial</p> Signup and view all the answers

    Which IP address is associated with the ION 9000 device?

    <p>192.168.100.112</p> Signup and view all the answers

    What is required for proper operation of PowerLogic devices?

    <p>A minimum set of parameters must be configured</p> Signup and view all the answers

    What parameters ensure accurate timestamps for onboard data logs?

    <p>Internal clocks</p> Signup and view all the answers

    Which address range corresponds to VM 4 to 6 for BoardA.Lighting1?

    <p>x</p> Signup and view all the answers

    Which type of system configuration is mentioned as part of the parameters for PowerLogic devices?

    <p>Delta or Wye</p> Signup and view all the answers

    What is one of the communication methods that can be configured for PowerLogic devices?

    <p>Ethernet</p> Signup and view all the answers

    Which type of network generally provides better performance according to the content?

    <p>Ethernet networks</p> Signup and view all the answers

    What is one recommendation for optimizing real-time data polling?

    <p>Set polling periods according to user needs</p> Signup and view all the answers

    Which device should be connected directly through Ethernet for better power quality monitoring?

    <p>ION9000</p> Signup and view all the answers

    What action should be taken regarding devices that are not currently functional?

    <p>Disable these devices</p> Signup and view all the answers

    When is it advisable to schedule log uploads?

    <p>During times of low system usage</p> Signup and view all the answers

    What should be avoided when polling data from devices?

    <p>Polling with high speed when not needed</p> Signup and view all the answers

    Which statement best describes how communications occur between the software and devices?

    <p>Through on-demand requests and periodic data polling</p> Signup and view all the answers

    For what purpose should the Daisy Chain Calculator tool be used?

    <p>To connect high-end devices effectively</p> Signup and view all the answers

    What basic settings can be configured using the front panel of the PM8000?

    <p>Metering (system type, CT, PT)</p> Signup and view all the answers

    Which of the following configurations requires the use of ION Setup?

    <p>Power quality detection</p> Signup and view all the answers

    What is the role of the Meter Verification in ION Setup?

    <p>To verify the wiring of PTs and CTs</p> Signup and view all the answers

    Why is time synchronization important for devices in PME?

    <p>It maintains accurate time across devices</p> Signup and view all the answers

    Which configuration is performed for Modbus devices in ION Setup?

    <p>Data recording and memory allocation</p> Signup and view all the answers

    What synchronization mechanism does PME use to ensure time accuracy?

    <p>Serial Networks and Ethernet Networks</p> Signup and view all the answers

    What type of displays can be configured for an ION device?

    <p>Custom front panel displays</p> Signup and view all the answers

    What is the first step required for full device time synchronization?

    <p>Configure a time source to send time synchronizations</p> Signup and view all the answers

    Which feature is NOT included in the basic settings of the PM8000 front panel?

    <p>Data recording</p> Signup and view all the answers

    What happens if an ION9000 is configured to receive time synchronizations from multiple sources?

    <p>It will cause conflicts and may not show accurate time.</p> Signup and view all the answers

    Which time synchronization method is most suitable for systems requiring high accuracy?

    <p>GPS</p> Signup and view all the answers

    What is a recommended practice to avoid multiple time synchronization signals in the network?

    <p>Use a common protocol across all devices</p> Signup and view all the answers

    Which of the following is NOT a time synchronization source for power quality monitoring?

    <p>Bluetooth</p> Signup and view all the answers

    To enable time synchronization on an ION device, which tab should you access in ION Setup?

    <p>Timezone tab</p> Signup and view all the answers

    What is a critical requirement for systems where time synchronization is not considerably critical (± 1 s)?

    <p>Using either Power Monitoring Expert server or NTP is acceptable</p> Signup and view all the answers

    Which of the following protocols is designed for high accuracy time synchronization?

    <p>GPS</p> Signup and view all the answers

    Study Notes

    Time Synchronization Configuration

    • Each device needs a single time synchronization source
    • Two steps are required:
      • Configure the time source
      • Configure the devices to receive synchronizations
    • Example: both a Power Monitoring Expert server and an NTP server are sending time synchronizations on the same network.
    • In this case, an ION9000 should be configured to only receive time synchronizations from one of these servers (eg: Power Monitoring Expert server).

    Time Synchronization Sources

    • Systems where time synchronization is not critical for power quality monitoring, sequence of events recording (SER), revenue billing, or system stability, can use these sources:
      • Power Monitoring Expert Server
      • DNP
      • NTP
      • DLMS
    • Systems that require stricter time synchronization (±1 ms), for example in power quality monitoring, SER, revenue billing, or system stability, can use these sources:
      • PTP
      • GPS
      • IRIG-B
    • Use a protocol that is common to all devices to avoid multiple time synchronization signals in the network.

    Enable time synchronization on an ION device

    • Connect to the device using ION Setup.
    • Change the CL1 Time Sync Source for clock on the Timezone tab.
    • This can also be done on the meter front panel.

    Network Performance

    • Ethernet networks provide better performance than serial networks
    • Communications between the software and devices consist of:
      • On-demand, real-time data requests, used for diagrams and dashboards displays
      • Periodic polling and uploading of data logs, events, and waveform records

    Optimizing the on-demand and background polling performance

    • Set real-time data polling periods to meet the user's needs, avoiding fast polling when unneeded
    • Disable devices that are not commissioned and functional
    • Only log measurements that are necessary to meet user needs
    • Schedule log uploads when the system is being used less, such as at night or off hours
    • Use ethernet instead of serial to connect high-end ION9000 devices with power quality monitoring features
    • Use the Daisy Chain Calculator tool.

    Add a site, Modbus device and an Ethernet Device

    • Example:
      • BoardA, Lighting1, PM5100 series, serial (5), 192.168.100.102
      • BoardA, HVAC1, PM5350, serial (1), 192.168.100.102
      • BoardA, HVAC1, ION9000, ethernet, 192.168.100.112, 192.168.100.113, 192.168.100.116, 192.168.100.117

    Meter Configuration

    • Minimum parameters must be configured on all PowerLogic devices:
      • Basic Metering: system type (delta or wye), CT and PT ratios
      • Communication: serial or ethernet ports, IP address, subnet, gateway, Modbus ID, baud rate
      • Clock: internal clocks ensure accurate timestamps for alarms and data logs, synchronize with the Power Monitoring Expert server

    Basic Configuration

    • Can be done using the front panel or ION Setup.
    • Front panel provides limited settings:
      • Metering (system type, CT, PT)
      • Communications
      • Display
      • Clock
      • Alarms
      • Language
      • Security
    • ION Setup provides various settings:
      • Data recording and memory allocation
      • Power quality detection
      • Input metering for WAGES
      • Digital/analog outputs
      • Custom front panel displays

    Advanced Configuration

    • This configuration must be done through ION Setup.
    • Parameters can be configured using:
      • Setup Screens (for Modbus devices)
      • Setup Assistant (for ION devices)

    Meter Verification and Phasor Viewer in ION Setup

    • Meter verification helps answer questions like:
      • Are the measurements close to the expected value?
    • Phasor Viewer helps answer questions like:
      • Are the PTs and CTs wired correctly?

    Time Synchronization

    • Devices require time synchronization for accurate time in PME
    • Different synchronization mechanisms achieve different time accuracy levels
    • PME can synchronize devices to the PME server computer clock
    • This can be done over serial and ethernet networks.

    Enable time synchronization on an ION device

    • In Management Console:
      • For ethernet devices: set Time Synch Ethernet Enabled to Yes in the ethernet device configuration.
      • For serial devices: set Time Synch ION Enabled to Yes in the Ethernet Gateway.

    Key Points to Remember

    • PowerLogic ION Setup is recommended for device configuration.
    • This setup can be used to:
      • Create a network of devices for initial and future device configuration
      • Configure ION devices using the Setup Assistant
      • Configure Modbus devices using Setup Screens
    • Minimum setup for PowerLogic devices involves:
      • Programming CT and PT ratios and system type (delta or wye)
      • Configuring communication settings
      • Configuring clock and time synchronization for devices with onboard alarms and data logs.

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    Related Documents

    Devices and Networks PDF

    Description

    This quiz covers the configuration of time synchronization sources in power systems, emphasizing the importance of a single time source for devices. Learn about various synchronization protocols and their application in scenarios that require precise timekeeping for monitoring and billing.

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