GE EPM 6000 Multi-function Power Metering System instruction manual DNP Objects and Variations

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CHAPTER 5: COMMUNICATIONS

5.4DNP Objects and Variations

5.4.1 Description

Application Data contains information about the object and variation, as well as the qualifier and range. The following objects and variations are supported:

•Binary Output Status (object 10, variation 2)

•Control Relay Output Block (object 12, variation 1)

•32-Bit Binary Counter Without Flag (object 20, variation 4)

•16-Bit Analog Input Without Flag (object 30, variation 5)

•Class 0 Data (object 60, variation 1)

•Internal Indications (object 80, variation 1)

Read requests for variation 0 will be honored on the Binary Output Status, 32-Bit Binary

Counter Without Flag, 16-Bit Analog Input Without Flag, and Class 0 Data variations.

5.4.2Binary Output Status (Object 10, Variation 2)

The Binary Output Status supports the Read function (function 1). A READ request for

Variation 0 will be responded to with Variation 2.

The Binary Output Status is used to communicate the following metered data:

•Energy Reset State (point 0): EPM 6000 meters accumulate power generated or consumed over time as hour readings, which measure positive VAh and positive and negative Wh and varh. These readings may be reset using the Control Relay Output object (object 12). This Binary Output Status point reports whether the energy readings are in the process of being reset or if they are accumulating. Normally, readings are being accumulated and the state of this point is read as “0”. If the readings are in the process of being reset, the state of this point is read as “1”.

•Change to Modbus RTU Protocol State (point 1): EPM 6000 meters are capable of switching from the DNP protocol to the Modbus RTU protocol. This enables the user to update the device profile of the meter. This feature does not change the protocol setting, as reset returns the meter to DNP. A status reading of “1” equals open (or de- energized); a reading of “0” equals closed (or energized).

5.4.3Control Relay Output (Object 12, Variation 1)

The Control Relay Output Block supports the following functions: Direct Operate (function 5) and Direct Operate - No Acknowledgment (function 6).

The Control Relay Output Block is used for the following purposes:

•Energy Reset (point 0): EPM 6000 meters accumulate power generated or consumed over time as hour readings, which measure positive VAh and positive and negative Wh and varh. These readings may be reset using Point 0.

The Direct Operate (function 5) function will operate only with the settings of Pulsed ON (Code = 1 of Control Code field) once (Count =01h) for ON 1 ms and OFF 0 ms.

EPM 6000 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE

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Contents Chapter Page Table of Contents Using the Meter Miscellaneous TOC-4 Description IntroductionHighlights EPM 6000 Highlights Universal Voltage Inputs FeaturesCurrent Inputs Utility Peak DemandEPM 6000 Measured Values Measured ValuesOrder Codes OrderingEPM 6000 Order Codes Inputs/Outputs SpecificationsMetering Communications EnvironmentalMechanical Parameters Approvals Type TestingThree-Phase Power Measurement Wye Connection Three-Phase System ConfigurationsVcn Common Phase Voltages on Wye ServicesDelta Connection Three-Phase Delta Winding RelationshipThree-Phase, Four-Wire Delta Phasors Blondells Theorem and Three-Phase MeasurementPhase B Phase C Node n Phase a Electrical Background Power Power, Energy, and DemandEnergy Power Use Over Time Demand Power and Energy Relationship Over TimeEnergy Use and Demand Intervals Real, Reactive, and Apparent Power Reactive Energy and Power FactorApparent power Power FactorHarmonics of a Non-Sinusoidal Waveform Harmonic DistortionVoltage and Current Monitoring Inductive and Capacitive ImpedanceWaveform Capture Typical Power Quality Problems Power QualityElectrical Background Dimensions Mechanical InstallationAnsi and DIN Mounting Panel Cutouts Ansi Installation StepsAnsi Mounting Procedure DIN Installation StepsDIN Mounting Procedure Installation Considerations Electrical InstallationCT Leads Pass-Through No Meter Termination CT Leads Terminated to MeterQuick Connect Crimp CT Terminations Voltage and Power Supply ConnectionsVoltage Connection Ground ConnectionsWiring Diagrams 4-Wire Wye with no PTs and 3 CTs, 3 Element 2 Wye, 4-Wire with no PTs and 3 CTs, 3 Element10 4-Wire Wye with no PTs and 3 CTs, 2.5 Element 3 Wye, 4-Wire with no PTs and 3 CTs, 2.5 Element11 4-Wire Wye with 3 PTs and 3 CTs, 3 Element 4 Wye, 4-Wire with 3 PTs and 3 CTs, 3 Element12 4-Wire Wye with 2 PTs and 3 CTs, 2.5 Element 5 Wye, 4-Wire with 2 PTs and 3 CTs, 2.5 Element13 3-Wire Delta with no PTs and 2 CTs Delta, 3-Wire with no PTs and 2 CTs14 3-Wire Delta with 2 PTs and 2 CTs Delta, 3-Wire with 2 PTs and 2 CTsCurrent-Only Measurement Three-Phase Current-Only Measurement Dual-Phase Current-Only Measurement Single-Phase IrDA COM1 Port Communications Setup3 RS485 COM2 Port 16 RS485 Communications Installation Faceplate Elements Front Panel InterfaceFaceplate Buttons Using the Meter% of Load Bar Segments Percentage of Load BarEPM 6000 Accuracy Test Constants Watt-Hour Accuracy Testing VerificationOverview Configuring the Meter via the Front PanelStart Up Main Menu Reset Mode and Password EntryUsing the Meter Using the Meter Configuring the Scroll Feature Changing Settings in Configuration ModeProgramming the Configuration Mode Screens Configuring the CT Setting Value for amps is a product of the Ct-nand the Ct-Svalues Configuring the PT SettingConfiguring the Connection Setting Configuring the Communication Port Setting Address Using the Meter Operating Mode Parameter Readings Operating ModeUsing the Meter Memory Map Description Modbus CommunicationsMemory Map HEX Range Units or Comments THD Block7 Description 1 Format Range 7532 PT denominator Secondary Readings Section Modbus Memory Map NotesCommunications Modbus Memory Map Data Formats DNP Point Maps DNP Point MappingDNP Point Mapping Sheet 1 DNP Point Mapping Sheet 2 DNP Point Map Notes Data Link Layer DNP ImplementationTransport Layer Following function codes are implemented on the EPM Application LayerBinary Output Status Object 10, Variation DNP Objects and VariationsControl Relay Output Object 12, Variation 5 16-Bit Analog Input Without Flag Object 30, Variation 4 32-Bit Binary Counter Without Flag Object 20, VariationInternal Indications Object 80, Variation Class 0 Data Object 60, VariationCommunications Introduction Navigation MapsMain Menu Navigation Main Menu ScreensOperating Mode Navigation Operating Mode ScreensReset Mode Navigation Reset Mode ScreensConfiguration Mode Screens Release Dates Revision HistoryChanges to the Manual Major Updates for 1601-0215-A2 GE Multilin Warranty WarrantyIndex Irda Power Supply Wiring
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