Nexus 1450 Power Meter Modbus Manual V.1.02 E171707
User Manual: Pdf Nexus-1450-Meter-Modbus-Manual E171707
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- Copyright Notice
- Customer Service and Support
- About Electro Industries/GaugeTech (EIG)
- Table of Contents
- 1: Modbus Protocol Overview
- 1.1: Introduction
- 1.2: Communication Packets (Modbus RTU)
- 1.3: Slave Address and Broadcast Request
- 1.4: Function Codes
- 1.4.1: Function Code 03H - Read Holding Registers
- 1.4.2: Function Code 04H - Read Input Registers
- 1.4.3: Function Code 06H - Preset Single Register
- 1.4.4: Function Code 10H - Preset Multiple Registers
- 1.5: CRC (Error Checksum) Algorithm
- 1.6: Dead Time
- 1.7: Exception Response (Error Codes)
- 1.8: Modbus Extensions
- 1.8.1: Function Code 23H - Read Holding Registers Multiple Times
- 2: Modbus Register Map
- 3: Communication Data Formats
- 3.1: Introduction
- 3.2: Type F1 - Null Terminated ASCII String
- 3.3: Type F2 - Fixed Length ASCII String
- 3.4: Type F3 - Time Stamp
- 3.5: Type F4 - Day of Week
- 3.6: Type F6 - High Speed Inputs, Delta and Current State
- 3.7: Type F7- Secondary Voltage, Current, VA, VAR, Watts, Hz or Flicker
- 3.8: Type F8 - Power Factor
- 3.9: Type F9 - Angle
- 3.10: Type F10 - Percentage
- 3.11: Type F11 - Energy Counter (Packed BCD / Secondary)
- 3.12: Type F12 - Energy Counter (Binary / Secondary)
- 3.13: Type F13 - Phase Sequence
- 3.14: Type F14 - Block/Rolling Window Average Status
- 3.15: Type F15 - Limit States
- 3.16: Type F16 - Low Speed (Internal) Input States
- 3.17: Type F17 - Digital Input States in Digital Input Option Board
- 3.18: Type F18 - Digital Input Option Board Input Accumulation / Cumulative Demand
- 3.19: Type F33 - Temperature
- 3.20: Type F34 - Limit and Relay Logic States
- 3.21: Type F35 - Relay Delays
- 3.22: Type F36 - Desired Relay States
- 3.23: Type F37 - Relays Pending Update
- 3.24: Type F38 Shadowed Relay States
- 3.25: Type F39 - Confirmed Polled Relay States
- 3.26: Type F40 - Valid Flags for Confirmed Relay States
- 3.27: Type F41 - Locked Relays, Relays 1-16
- 3.28: Type F42 - Locked Relay States
- 3.29: Type F43 - Miscellaneous Flags
- 3.30: Type F44 - Digital Input Option Module Data States
- 3.31: Type F45 - Analog Input Modules’ Data States
- 3.32: Type F46 - High Byte of Modbus Register (Signed)
- 3.33: Type F47 - High Byte of Modbus Register (Unsigned)
- 3.34: Type F49 - Low Byte of Modbus Register (Unsigned)
- 3.35: Type F51 - Two-Byte (Unsigned)
- 3.36: Type F52 - Four-Byte (Signed)
- 3.37: Type F53 - Four-Byte (Unsigned)
- 3.38: Type F55 - Eight-Byte (Unsigned)
- 3.39: Type F56 - Flicker Countdown
- 3.40: Type F57 - Accumulation in the Interval
- 3.41: Type F58 - 12-bit RTU Sanity Register
- 3.42: Type F62 - Scaled Pulse Accumulation, Aggregation or Average
- 3.43: Type F64 - Scaled Energy
- 3.44: Type F65 - Scaled Energy Setting
- 3.45: Type F67 - K-Factor
- 3.46: Type F68 - Secondary 1 Cycle RMS Voltage and Current
- 3.47: Type F69 - Angle
- 3.48: Type F70 - Harmonic Over Threshold Flag
- 3.49: Type F71 - Out of Range Status
- 3.50: Type F72 - Time Stamp (Packed BCD)
- 3.51: Type F73 - Magnitude
- 3.52: Type F74 - Number 4 Bytes - Unsigned Integer
- 3.53: F75 - Flagging
- 3.54: Type F76 - Valid Status
- 3.55: Type F77 - Voltage Flag
- 3.56: Type F78 - Current Flag
- 3.57: Type F79 - General Readings (RMS, Ratio…)
- 3.58: Type F82 - Point Update Flag
- 3.59: Type F83 - Phase Sequence
- 3.60: Type F90 - 16.7 usec Counter (Used for duration timestamp- ing.)
- 3.61: Type F97 - Hookup Configuration
- 3.62: Type F99 - Frequency Type
- 3.63: Type F100 - Waveform Sample Rate
- 3.64: Type F101 - High Resolution RTC Timestamp
- 3.65: Type F102 - Calibration Gain
- 3.66: Type F103 - Alternate Format Power Factor
- 3.67: Type F105 - RTC Status
- 3.68: Type F106 - Line Synch Mode
- 3.69: Type F107 - Daylight Savings Time Mode
- 3.70: Type F108 - Threshold Enable Channel
- 3.71: Type F112 - 16 Bits, General Purpose (Used for status informa- tion, including statuses of EN 50160 and TOU.)
- 3.72: Type F113 - 32 Bits, General Purpose (Used for status informa- tion, including status of EN 50160.)
- 3.73: Type F115 - 4 Byte Counter
- 3.74: Type F117 - Energy Counter
- 3.75: Type F118 - Power Factor
- 3.76: Type F119 - Byte Array
- 3.77: Type F120 - IEEE 32 bit Single Precision Floating Point
- 3.78: Type F122 - Timestamp (packed S-Format)
- 3.79: Type F123 - Time-of-Use (TOU) Calendar Entry
- 3.80: Type F124 - Time-of-Use (TOU) Rate Change
- 3.81: Type F125 - Time-of-Use (TOU) Monitored Data Set Options
- 3.82: Type F126 - Time-of-Use (TOU) Monitor Time Timestamp
- 4: Modbus Register Map Notes
- 5: Information for Downloading Logs
- 5.1: Downloading Logs - Overview
- 5.1.1 Log Download Using Non-increment Index Method
- 5.1.1.1: Steps for Downloading a Log
- 5.1.1.2: Downloading Time Stamps with Examples
- 5.1.1.3: Downloading Records with Examples
- 5.1.2: Log Download Using Auto-Increment Index Method
- 5.1.2.1: Download using Auto Increment Window Sequence
- 5.1.2.2: Download Using Auto Increment Window Sequence and Function Code 35
- 6: Meter Programmable Settings Block
- 6.1: Communication Settings Block (45057-45074)
- 6.2: Limit Settings Block (45077-45204)
- 6.3 Historical Log Settings Block (45205-45464)
- 6.4: High Speed Inputs Settings Block (45501-45723)
- 6.5: External Digital Output Module Settings Block (45729-45808)
- 6.7: External KYZ Output Module Settings Block (45893-45907)
- 6.8: CT & PT Ratio Settings Block (45909-45924)
- 6.9: Hookup and Time Settings Block (45925-45944)
- 6.10: Average Settings Block (45949-45952)
- 6.11: Exception Profile Block (45953-45968)
- 6.12: Device Label Settings Block (45969-45992)
- 6.13: Network Card Settings Blocks (30153-30208, 51197-51198 - Ports 5 and 6; 30209-30720 - Port 5; 45993-46016, 50785-51154, 52297-52300 - Port 6)
- 6.14: Block Window Average External Synchronization Block (46017)
- 6.15: Display Configuration Block (46018)
- 6.16: Energy Direction Block (46019)
- 6.17: Reserved for Future Use (46020)
- 6.18: Full Scale Block (46021-46036)
- 6.19: External Module Software Interface Block (46053-46196)
- 6.20: External Module Port Assignment Block (46197-46206)
- 6.21: Manual Control Relay Block (46207-46208)
- 6.22: Internal Input Pulse Accumulation Scale Factor Block (46209-46325)
- 6.23: I2t and V2t Threshold Block (46326-46329)
- 6.24: Internal KYZ Settings Block (46330-46372)
- 6.25: Internal Input Pulse Accumulation Unit Label Block (46373-46420)
- 6.26: ElectroLogic Block (46421-46804)
- 6.27: Limit Profile Label Block (46805-47060)
- 6.28: External Analog Output Module Channel Update Block (47061-47062)
- 6.29: Miscellaneous DNP Settings Block (47063-47104)
- 6.30: Custom DNP Definition Block for Analog Input (Object 30) (47105-47360)
- 6.31: Custom DNP Definition Block for Binary Counter (Object 20) (47361-47424)
- 6.32: Custom DNP Definition Block for Binary Input (Object 1) (47425-47456)
- 6.33: Custom DNP Definition Block for Binary Output (Object 10) (47457-47458)
- 6.34: Custom DNP Definition Block for Global Values (47459-47463)
- 6.35: External Digital Output Module Labels Block (49793-50176)
- 6.36: Reserved for Future Use (50273-50784)
- 6.37: Reserved for Future Use (50785-50860)
- 6.38: Reserved for Future Use (51201-51712)
- 6.39: Energy Scale Settings (51713-51746)
- 6.40: Reserved for Future Use (51862-52245)
- 6.41: Accumulators/Aggregators Average Full Scale (52249-52296)
- 6.42: Update Settings Block (52977-53248)
- 6.43: Reserved for Future Use (53249-53348)
- 6.44: Reserved for Future Use (55296-57344)
- 6.45: Waveform and PQ Settings
- 7: Register Block Titles
- 7.1: Device Identification Block (00001-00080)
- 7.2: Real Time Block (00081-00089)
- 7.3: 1 Cycle Block (00090-00118)
- 7.4: High Speed Block (00119-00175)
- 7.5: One Second Block (00176-00235)
- 7.6: Thermal Average Block (00236-00295)
- 7.7: Maximum Block (00296-00396)
- 7.8: Minimum Block (00397-00497)
- 7.9: Maximum Time Stamp Block (00498-00737)
- 7.10: Minimum Time Stamp Block (00738-00977)
- 7.11: Energy Block (Secondary) (00978-01021)
- 7.12: Harmonic Magnitude Block (01022-01789)
- 7.13: Harmonic Phase Block (01790-02557)
- 7.14: THD/K-Factor Block (02558-02566)
- 7.15: Harmonic Time Stamp Block (02567-02590)
- 7.16: Phase Angle Block (02591-02604)
- 7.17: Block Window Average Block (02605-02683)
- 7.18: Rolling Window/Predictive Rolling Window Block (02684-02768)
- 7.19: Limit Block (02769-02773)
- 7.20: Reserved for Future Use (02774-02841)
- 7.21: Internal Input Pulse Accumulation Block (05745-05796)
- 7.22: Pulse Accumulation Block Window Average / Maximum Block (05797-05945)
- 7.23: Temperature (05946)
- 7.24: Analog Input Block (05947-05978)
- 7.25: Limit Combination Block (05979-05980)
- 7.26: Relay Logic Block (05981-06014)
- 7.27: Reset Time Block (06015-06038)
- 7.28: Reserved for Future Use (06040-06076)
- 7.29: KYZ Output Accumulation Block (06097-06110)
- 7.30: Input Option Board Data Status Block (06111-06112)
- 7.31: Flicker Status Block (06114-06126)
- 7.32: Instantaneous Flicker Block (06127-06136)
- 7.33: Short Term Flicker Block (06137-06186)
- 7.34: Long Term Flicker Block (06187-06236)
- 7.35: Additional Energy Block (06237-06392)
- 7.36: Energy and Pulses in the Interval Block (06393-006488)
- 7.37: Flicker Countdown Block (06489-006490)
- 7.38: Cumulative Demand Block (06491-006502)
- 7.39: Uncompensated and Q Block (06665-06907)
- 7.40: Scaled Energy Block (06908-07829)
- 7.41: Reserved for Future Use (07830-07859)
- 7.42: Negative Maximum Pulse Aggregation Average Block (07864-07895)
- 7.43: Reserved for Future Use (07896-07910)
- 7.44: New Demand Block (Either Block Window Average or Sliding Window Average (07928-08039)
- 7.45: Scratchpad Block (08193 - 08320)
- 7.46: Master Device Data Block (08449-08704)
- 7.47: EN 50160/IEC 61000-4-30 Power Quality Test (08705-11054)
- 7.48: Frozen Energy Blocks (11265-11650)
- 7.49: Previous Block Window Average Block (11651-11742)
- 7.50: Previous Rolling Window Average Block (11743-11834)
- 7.51: Previous Scaled Energy Block (11835-11894)
- 7.52: One Second Three Phase Mean RMS Block (11895-11900)
- 7.53: Block Window Max/Min and 10 Minute Mean THD Block (11901-12138)
- 7.54: Coincident Power Factor (12141-12156)
- 7.55: Customized Modbus Block (12289-14336)
- 7.56: Nexus Master Polling Data Block (14337-14604)
- 7.57: Additional and Vpe Block (14849-14942)
- 7.58: Block Window, Max/Min Block, P-E
- 7.59: Enhanced Factory Settings Block (16385-24576)
- 7.60: Enhanced Programmable Settings Block (24577-32768)
- 7.61: TOU Status Section Block (34817-34826)
- 7.62: TOU Profile Section Block (34833-36608)
- 7.63: Reserved for Future Use (36737-36800)
- 7.64: Historical Log 1 Snapshot Header (36865-36883)
- 7.65: Historical Log 2 Snapshot Header (36929-36947)
- 7.66: System Event Log Header (37505-37526)
- 7.67: External Device Information Block Header (37761-37778)
- 7.68: External Device Programming Block Header (37825-37842)
- 7.69: Device History Block Header (37889-37906)
- 7.70: Direct Memory Access Header (37953-37970)
- 7.71: Window Index Block (38145-38162)
- 7.72: Window Mode Block (38209-38226)
- 7.73: Window Block (38273-39424)
- 7.74: Auto Increment Window Block (39423-39488)
- 7.75: Alarm Block (40961-41105)
- 7.76: TOU Action Log Header (41217-41240)
- 7.77: TOU Month/Season Log Header (41281-41304)
- 7.78: Port Control Block (41729-42496)
- 7.79: Reserved for Future Use (44545-44578)
- 7.80: Programmable Settings Block 1 (45057-57344)
- 7.81: Action Block - Resetting Meter Registers (57345-57517)
- 7.82: Device Identification Block 2 (65088-65280)
- 7.83: Password Block (65316-65344)
- 8:Alternative Method for Downloading Logs
- 9: Additional Procedures