Request PDU | GE EPM 9650/9800 instruction

In the request or response PDU, Link Status bit 0 indicates TCP (0) or UDP (1). In the request PDU, Link Status bit 1 indicates a continuation of the Current Association (0) or the start of a New Association (1).

Here is an example of a pair of requests where a DNP over TCP connection was established with a client at IP Address 1.2.3.4, port 20000. The first TCP frame transmitted 7 bytes in the stream, con- taining part of a DNP frame. The first request indicates the start of new association and passes the TCP connection information and passes the 7 bytes received. The first response includes no response meant for the network. The second TCP frame transmitted 5 additional bytes in the stream, containing the remainder of the first DNP frame and the start of a second. The second request indi- cates the continuation of the association, passes the TCP connection information and the additional 5 bytes received. The second response acknowledges the second request and contains the response for the first DNP frame, which is meant to be returned in the TCP.

Request PDU
Field Name	(Hex)
Address	0x001
Function	0x042
Status	0x002
IP Add Quad 1	0x001
IP Add Quad 2	0x002
IP Add Quad 3	0x003
IP Add Quad 4	0x004
Client Port Hi	0x04E
Client Port Lo	0x020
Byte Count Hi	0x000
Byte Count Lo	0x007
DNP octet	0x005
DNP octet	0x064
DNP octet	0x005
DNP octet	0x0C0
DNP octet	0x001
DNP octet	0x000
DNP octet	0x00A
Checksum (CRC1)	0x05A
Checksum (CRC2)	0x045

DNP Field

Name

Start

Start

Length

Control

Destination Lo

Destination Hi

Source Lo

	Response PDU
	Field Name	(Hex)	DNP Field
	Field Name	(Hex)	Name
			Name
	Address	0x001
	Function	0x042
	Status	0x000
	IP Add Quad 1	0x001
	IP Add Quad 2	0x002
	IP Add Quad 3	0x003
	IP Add Quad 4	0x004
	Client Port Hi	0x04E
	Client Port Lo	0x020
	Byte Count Hi	0x000
	Byte Count Lo	0x000
	Checksum (CRC1)	0x0A4
	Checksum (CRC2)	0x01B

1-10

Image 26

GE EPM 9650/9800 manual Request PDU, Response PDU Field Name Hex DNP Field

Contents

EPM 9650/9800 Meters Page EPM 9650/9800 Meters Modbus Protocol & Register Map Limitation of Warranty Customer Service and SupportProduct Warranty Statement of Calibration Table of Contents Page Page Page Communication Data Formats Page Modbus Register Map Notes Logs, Port Control and Updating Programmable SettingsEPM Programmable Settings Blocks EPM Log Formats Register Block Titles with Descriptions Page Xii Appendix a Glossary Xiv Slave Address and Broadcast Request IntroductionCommunication Packets Function Code Description Hex Dec Function CodesFunction Codes Function Code 03-Read Holding Registers Function Code 6 Example Master Packet Slave Packet Function Code 06-Preset Single RegisterFunction Code 10-Preset Multiple Registers Data Starting Address CRC Error Checksum Algorithm Function Code 10 Example Master Packet Slave Packet Exception Response Error Codes Dead Time Function Code Description Modbus ExtensionsModbus Extensions Repeat Count RTU Framing Ascii Framing Function Code 23H Read Holding Registers Multiple TimesFunction Code Function Code 42H Encapsulated DNP for LAN/WAN Function Code 23H Example Response Link Status Error CodeAddress Client IP Request PDU Response PDU Field Name Hex DNP Field Response PDU Page Chapter EPM Modbus Register Map Page DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP VAH DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP 02771 232 Limit States, Value Comparisons 02772 16-31 VAH DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP Time of Use Current Month Label Block DNP DNP DNP F12 KYZ Output Accumulation Block Analog Input Modules Data States F19 F57 DNP DNP DNP DNP DNP DNP DNP DNP DNP Reset Active TOU Time Stamp DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP Digital Output Snapshot Log Header DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP Custom DNP Definition Block for Analog Input Object 47369-47424 Point 1 Point DNP DNP DNP DNP DNP DNP DNP Customizable Modbus Map Settings Block DNP LAN/WAN DNP DNP DNP DNP DNP DNP DNP Fixed Length String Enumeration DNP Bytes Type F1 Null Terminated Ascii StringType F2 Fixed Length Ascii String Register String Date Type F3 Time StampUnit Day of Week Type F4 Day of WeekType F5 Secondary 1 Cycle RMS Voltage or Current Secondary Byte unsigned integer HexByte unsigned integer Decimal Type F6 High Speed Input Delta and Current State VAR secondary Byte signed integer HexMost significant bit Byte integer Decimal Most significant bit Compliment Address Value 0390H Decimal Type F8 Power FactorQuadrant Value Hex Dec Address Value 0C10H Decimal Angle Type F9 AngleMost significant bit Type F10 Percentage Nibbles Digit Unit VAh Type F11 Energy Counter Packed BCD / SecondaryType F12 Energy Counter Binary / Secondary Byte unsigned integer Type F13 Phase SequenceType F14 Average Status Value Hex Interpretation Type F15 Limit StatesBits Points Limit Passed Bits Type F16 Low Speed Input StatesByte Input Type F17 External Digital Input States Accumulated Transitions Type F18 External Input AccumulationsType F19 Energy Counter Packed BCD / Primary Type F20 Energy Counter Binary / Primary Nibbles Digit Unit Type F21 Year Type F22 TOU Profile per Day Day Leap Year Type F23 TOU Profile StatusDay Address35107 Value0001H Decimal1 Nibbles Type F24 TOU Daily Profile Register AssignmentValue Hex Register Period Decimal Month Type F26 TOU Calendar DST Enable / Average SelectionType F25 TOU Profile Monthly End Day Selection Decimal Purpose Type F27 TOU Upload Calendar Window Sequence / StatusAverage Address36609 Value0DH Decimal13 Meaning Window Type F28 TOU Upload Calendar Window IDType F29 TOU Upload Calendar Window Data Type F32 TOU Calendar Header Status / Year Status Type F30 TOU Upload Calendar Window ChecksumType F31 TOU Calendar Selection Celsius Type F33 TemperatureMost significant bit Decimal Bits Limit Logic T/F Type F35 Relay DelaysType F34 Limit and Relay Logic States Bits Limit State NO/NC Type F37 Relays Pending UpdateType F36 Desired Relay States Bits Point Update?Type F38 Shadowed Relay States Type F39 Confirmed Polled Relay States Type F40 Valid Flags for Confirmed Relay States Type F41 Locked Relays, Relays Locked? Type F42 Locked Relay States Bits Point Relay Addr Type F43 Miscellaneous FlagsBit Point Type F44 Digital Input Module Data Status Bits Point Digital Input Bits Point Analog Input Module Status Type F45 Analog Input Modules Data StatusReg Bit Point Type F4 Low Byte of Modbus Register Signed Type F46 High Byte of Modbus Register SignedType F47 High Byte of Modbus Register Unsigned Type F49 Low Byte of Modbus Register Unsigned Type F52 Four-Byte Signed Type F50 Two-Byte SignedType F51 Two-Byte Unsigned Type F53 Four-Byte Unsigned Type F54 Eight-Byte Signed Type F55 Eight-Byte Unsigned Type F58 12-bit RTU Sanity Register Type F56 Flicker CountdownsType F57 Accumulation in the Interval 0400H Type F59 12-bit RTU Current, Voltage, W, VARAddr 53250 Addr 53256 Digit Unit KWh primary Type F60 Energy CounterType F61 12-bit RTU Frequency 0810H Most Significan Bit Type F62 Scaled Pulse Accumulation, Aggregation or AverageByte Signed Integer Addr Hex Byte Hex Type F63 Log IndexType F64 Scaled Energy Type F65 Scaled Energy Setting Bit Meaning Type 66 TOU Upload Calendar Window Locked to Port Type 67 K-Factor Factor Chapter Modbus Register Map Notes Modbus Register Map NotesPage Downloading Logs Overview Byte RangePage Steps for Downloading a Log Downloading Time Stamps with Examples Address Description Example ValuePage Downloading Records with Examples Page Downloading Logs with Auto Index and Modbus Extensions Auto Increment Log Window 0x09A3F Download using Auto Increment Window SequenceAuto Increment Window Index 0x099FF Port Locking Overview Reception Sequence for Port LockingTransmission Port Unlocking Sequence Updating Programmable Settings Overview Sequence for Updating Programmable Settings Clear on New Period / Freeze Period Selection Modifications to Time of UseRegister Meaning Value Weekly Freeze Day of Week / Freeze Hour Modbus Register Dual Port Address Name Decimal Hex Manual Adjustment InterfaceCalibration Interface Page Direct Adjustment Interface As Stored LSB Decimal Scaled Change by Multiply byDecimal Scaled Meaning Change by Modified by Chapter EPM Log Formats Log Formats Overview Historical Log 1 Record Size Profile Information is in the Programmable Settings BlockHistorical Log 1 Format Historical Log 1 Data Pointers Format Range Description Profile Information is in the Programming Settings BlockHistorical Log 2 Format Historical Log 2 Record Size Historical Log 2 Data Pointers Limit Trigger Log Format Limit Snapshot Log Format Format Range Description Waveform Trigger Log Format VAN, VBN, VCN, IA, IB, IC, IAUX, VAB, VBC, VCA High Speed Digital Input States Above Limits VAN VBN VCN Vaux IA IB IC Iaux Example for EPM 9650 with 300V hardware Formula to use for EPM 9650s with 300V hardware isExample for EPM 9650 with regular hardware or EPM Waveform Samples Log Format Page HS RMS Page Current Sample Examples Actual 1st Byte 2nd Byte Straight Current Sample Examples Actual 1st Byte Straight 2nd Byte Current Sample Examples Actual Ist Byte Straight 2nd Byte High Speed Digital Input States Power Quality Cbema Log Format VAN VBN VCN Vaux IA IB IC Iaux VAB VBC VCA 11 High Speed Digital Input States Digital Input Log Format Byte Format Range 13 States of the Internal Digital Inputs Format Range Digital Input Snapshot Log FormatDigital Input Snapshot Data Pointers Page Digital Output Log Format 16 Relay Valid Bits 18 Relay Logic Gate Ouputs Page Digital Output Snapshot Log Format Digital Output Snapshot Data Pointers Byte Format Range Description Flicker Log Format System Event Log Format Power Record Password Record Change Time Change Programmable SettingsChange Firmware Test Mode Log Download Feature Reset Communication Settings Block Specifications Communication Settings BlockLimit Settings Block Structure for a combination is Structure for the Direction and Combination byte is Data Pointer 4-Byte Structure Historical Log Settings BlockPollable information would consist Format Description Set Points Waveform/CBEMA Settings BlockWaveform & PQ enable Sample Rate External Digital Output Module Settings Block High Speed Inputs Settings BlockExternal Digital Input Module Settings Block External KYZ Output Module Settings Block External Analog Input Module Settings BlockExternal Analog Output Module Settings Block KYZ Output Relay Byte Energy Assignments 11 CT & PT Ratio Settings Block Hookup and Time Settings Block Average Settings Block Exception Profile Block Port 2 Baud Rate Values Device Label Settings BlockNetwork Settings Block Mode 2 Network Mode 2 byte Server / Service Enable Energy Direction Block Display Configuration BlockBlock Window Average External Synchronization Block Proper Values for BWA Synch Mask Assigned Inputs External Module Software Interface Block Test Mode Configuration BlockFull Scale Block External Module Port Assignments External Module Port Assignment BlockManual Control Relay Block Value Assignments 26 I2t and V2t Threshold Block Internal KYZ Settings Block 46330-46372- EPM 9800 OnlyInternal Input Pulse Accumulation Scale Factor Block Channel Assignment Internal KYZ Enable Assignment BitInternal KYZ Channel Assignment Width milliseconds End of Interval Pulse Byte Value EnableInternal Input Pulse Accumulation Unit Label Block ElectroLogic Block Format of a Relay Structure Value Update External Analog Output Module Channel Update BlockExternal Analog Output Module Update Speed Structure for the Direction and Combination byte Value Time 1 Minute Interval Miscellaneous DNP Settings BlockBytes to be Sent Out DNP Freeze Date & Time 4 registers, 8 bytes Registers Byte Name Range Custom DNP Definition Block for Analog Input Object 30 Custom DNP Definition Block for Binary Counter Object 20 Class Assignments for Counter Change Event Bit Custom DNP Definition Block for Binary Output Object 10 Bit ResetsCustom DNP Definition Block for Binary Input Object 1 Analog Input Labels Block Custom DNP Definition Block for Global ValuesAnalog Input Scaling Factors Block External Digital Input Module Labels Block Index Baud Rate INP Internal Modem Card Settings BlockEPM Internal Modem Card Baud Rate Settings Bit 2 Bit Parity Internal Modem Card Bitmap Settings Numeric Pager ID 7 bytes Reserved for future use Modem Feature Dial-Out Mask Event Mask Bit Event Description Customizable Modbus Map Settings Block Email Client Settings Network Settings 10/100 Card Enable / Disable 1 RegisterEmail Mode Bitmap Connection Type/Option Bits FTP Client Network Settings 10/100 CardGE EGD Protocol Network Settings 10/100 Card DNP LAN/WAN Validate Connection Count 1 byte unsigned integer DNP LAN/WAN Bitmap Line Number 2 bytes Point Number 1 byte Energy Scale SettingsCustomizable Modbus Map Format Block Update Settings Block Page On Time Device Indentification BlockReal Time Block Current Time One Second Block 1 Cycle BlockTenth Second Block Minimum Block Thermal Average BlockMaximum Block Maximum Time Stamp Block Harmonic Magnitude Block Harmonic Phase BlockPhase Angle Block 14 THD/K-Factor Block Time of Use Period Time Stamp Block Digital Input BlockPrimary Accumulation Block Time of Use Frozen Block Time of Use Active Register Block Time of Use Prior Month Register BlockTime of Use Prior Month Total Block Time of Use Active Total Block Time of Use Frozen Label Block TemperatureTime of Use Current Month Total Block Time of Use Prior Month Label Block Limit Combination Block Reset Time BlockAnalog Input Block Relay Logic Block Input Module Data Status Block Test Mode BlockKYZ Output Accumulation Block Flicker Status Block Cumulative Demand Block Energy and Pulses in the Interval BlockFlicker Countdown Block Time of Use Active Cumulative Demand Block TOU Current Month Continuous Cumulative Demand Block Total Average Power Factor BlockTOU Active Continuous Cumulative Demand Block Log Index Block Enhanced Programmable Settings Block Reset Active Time of Use Time StampEnhanced Factory Settings Block Negative Maximum Pulse Aggregation Average Block Historical Log 1 Snapshot Header Time of Use Calendar BlockTime of Use Upload Calendar Block Limit Snapshot Log Header Historical Log 2 Snapshot HeaderLimit Trigger Log Header Digital Input Log Header System Event Log Header Flicker Log HeaderWaveform Trigger Log Header Valid Bitmap Undefined PQ Cbema Log Header Reset Log HeaderWaveform Samples Log Header External Device Information Block Header Window Index Block Direct Memory Access HeaderDevice History Block Header Page Window Mode Block Page Window Block Page „ Auto Increment Window Index 1 register, 2 bytes „ Auto Increment Configuration 1 Register, 2 bytesAuto Increment Window Block Byte Format Range Description Alarm Block„ Auto Increment Log Window 64 registers, 128 bytes Last Alarm Snapshot Format Description Port Control Block Port Control Lock States Register High Byte Low Byte Receive and Transmit Buffers Port Transmit Current, Voltage, W, VAR 1 register, 2 bytes Energy Preset Block97 12-bit RTU Block Action Block Resetting EPM Registers Voltage Calibration Inputs Model Current Calibration Inputs Model Calibration Modification Block Factory Calibration BlockCtpt Compensation Calibration Block Relay Locking Action Selection Values ValueDescription Device Identification Block 2 Operational Communication Settings BlockDiagnostic Block Xilinx Version / 320 Xilinx Version Sealing Switch State DSP Diagnostic BlockPassword Block Firmware Variation Strings New Password a New Password B Nvram Configuration Values Dynamic Configuration BlockHardware Option Settings Hardware Options Block CT’s PTs Banked Executable Option Settings Modbus Register 9650 9800EPM Forms Code Amp 65364 High 300 V 65364 Low Flash Control Block Page Flash Locked Port GE Communicator EXT Flash Code Hex Line Enhanced Serial Number Serial NumberPage Glossary Eeprom LCD Nvram Glossary-5 THD