SPM-D01-R / SPM-D01-M — DIN-rail Single-circuit Modbus Smart Power Meter

Descripción

Driving ESG Goals through Smarter Energy Management Achieving ESG targets requires more than reducing energy use—it starts with clear and measurable power data . PLANET Smart Power Meter series helps organizations track energy consumption , improve operational efficiency and support sustainability reporting across commercial, industrial and public infrastructure environments. With greater visibility into power usage, businesses can make more informed decisions and turn ESG commitments into measurable energy management actions . Dedicated Power Monitoring for Critical Electrical Loads As energy efficiency and sustainability become increasingly important, accurate circuit-level electrical data is essential for understanding the operating conditions of individual loads. PLANET introduces the SPM-D01 Series DIN-rail smart power meters for dedicated monitoring of distribution feeders , motor control panels , industrial machinery and other critical electrical loads . By providing detailed electrical and energy information for a single circuit, the series helps users identify abnormal conditions, evaluate equipment performance and improve energy-management decisions. Two Current Sensor Options for Different Applications The SPM-D01 Series consists of two models designed for different current-sensing requirements. The SPM-D01-M supports conventional current transformers with a 333mV output for general electrical panels and low-to-medium-current circuits. The SPM-D01-R supports Rogowski coils , whose flexible structure makes them suitable for large conductors, busbars and high-current applications. These two sensing options allow users to select the appropriate installation method without changing the core power-monitoring functions. Product Type Circuit Type Model Current Sensor Input Power Supply DIN-rail Power Meter Single-circuit SPM-D01-M MV 0–333mV AC 85–264 V / DC 100–300 V SPM-D01-R Rogowski coil 333mV Flexible Wiring for Various Power Systems The SPM-D01 Series supports 1P2W, 1P3W, 3P3W and 3P4W systems with balanced or unbalanced loads. Depending on the selected power system, the meter can operate with one , two or three current sensors and with or without external potential transformers. This wiring flexibility enables the same meter platform to be deployed across different single-phase and three-phase electrical environments. Software-assisted Auto Wiring Change The built-in Auto Wiring Change function can identify and correct certain voltage and current wiring relationships through software when the required operating conditions are met. This helps reduce the time needed to correct supported wiring errors during installation and commissioning. Wiring information can also be viewed from the front panel to help operators verify the measurement configuration. High-accuracy True RMS Measurement With True RMS measurement and a sampling rate of 128 points per cycle , the SPM-D01 Series provides reliable measurement for different electrical load characteristics. It delivers 0.2% voltage and current accuracy and 0.5% active , reactive and apparent energy accuracy , making it suitable for equipment energy monitoring, operating-condition analysis and electricity cost allocation. Detailed Electrical and Power-quality Information The SPM-D01 Series measures phase and line voltage , current , neutral current , frequency , active power , reactive power , apparent power , power factor , phase angle , and active, reactive and apparent energy. It also provides voltage and current total harmonic distortion , three-phase voltage and current unbalance , demand calculation , and maximum and minimum value recording. These measurements allow users to examine the electrical behavior of a selected load in greater detail. Historical Data and Abnormal Event Tracking The built-in 2MB Flash memory records selected measurement parameters at configurable intervals for historical analysis. The meter can also store up to 16 abnormal-event records , including the event source, operating status, measured value, date and time. These records help users review load changes and investigate abnormal electrical conditions without relying only on real-time readings. Energy Cost and CO₂ Emission Visibility In addition to electrical measurements, the SPM-D01 Series can display accumulated electricity cost and estimated CO₂ emissions based on configurable conversion values. This information allows energy consumption to be presented in operational, financial and environmental terms, supporting equipment-level efficiency evaluation and sustainability reporting. RS-485 Communication and Energy Pulse Output Both models are equipped with an RS-485 interface supporting Modbus RTU for integration with EMS, BMS, SCADA and industrial control systems. Communication rates of up to 115200bps and transmission distances of up to 1200 meters enable flexible field deployment. An open-collector pulse output can be assigned to imported or exported active and reactive energy for connection to external counters or monitoring equipment. Space-saving DIN-rail Installation With a compact 72 × 58.7 × 87.5mm enclosure , the SPM-D01 Series can be installed in distribution panels where available space is limited. The 128 × 64 dot-matrix LCD , four operating buttons and front-panel indicators provide convenient on-site measurement viewing, wiring verification and parameter configuration. Applications Machine-level Energy and Operating-condition Analysis Installed on the power feed of an individual motor, pump, compressor or production machine, the single-circuit power meter continuously measures its voltage, current, power, power factor, energy consumption and power-quality conditions. When paired with a PLANET IMG-3X00T Series Modbus Gateway , the meter data can be converted from Modbus RTU to Modbus TCP or published to an MQTT platform for equipment-level visualization and analysis. Changes in current demand, power factor or energy-use patterns can help operators identify abnormal loading, inefficient operation and possible maintenance requirements before they affect production. HaLow-enabled Equipment and Cabinet Monitoring The single-circuit power meter can be connected to the PLANET HLB-1150 IIoT Remote I/O Controller through RS-485 Modbus RTU to monitor the energy consumption and operating condition of an individual machine or electrical feeder. The HLB-1150 can simultaneously collect cabinet-door, smoke, water-leakage, cooling-system and equipment-alarm signals through its digital inputs, while its digital outputs can activate warning devices or external relays. With long-range Wi-Fi HaLow connectivity , power data and equipment status can be transmitted from hard-to-wire machine areas or remote electrical cabinets to a centralized monitoring platform. This integrated solution is suitable for production equipment, utility rooms, outdoor cabinets and other locations requiring combined energy monitoring , alarm detection and basic remote control . Key Features Highlights SPM-D01-M and SPM-D01-R single-circuit power meter models Dedicated monitoring for single-phase and three-phase electrical systems Conventional 333mV-output CT support on the SPM-D01-M Flexible Rogowski coil support on the SPM-D01-R True RMS measurement with 128-point-per-cycle sampling 0.2% voltage and current measurement accuracy RS-485 Modbus RTU communication Built-in 2MB Flash memory for data logging Auto Wiring Change and abnormal-event recording Single-circuit Measurement Dedicated monitoring of one single-phase or three-phase electrical circuit Suitable for distribution feeders, motor control panels and individual equipment Supports balanced and unbalanced load measurement Compatible with external potential transformers Configurable PT and CT ratios for different electrical systems Suitable for general-current and high-current monitoring applications Electrical Measurement Phase voltage and average phase voltage Line voltage and average line voltage Phase current, average current and neutral current Frequency Active power Reactive power Apparent power Power factor Phase angle Active energy Reactive energy Apparent energy Current and power demand Maximum and minimum value recording Power-quality Analysis Voltage total harmonic distortion Current total harmonic distortion Three-phase voltage unbalance Three-phase current unbalance Phase-voltage angle measurement Line-voltage angle measurement Current phase-angle measurement True RMS measurement Sampling rate of 128 points per cycle Voltage and current measurement accuracy of 0.2% Flexible Wiring Systems Supports 1P2W single-phase two-wire systems Supports 1P3W single-phase three-wire systems Supports 3P3W three-phase three-wire systems Supports 3P4W three-phase four-wire systems Supports one, two or three current sensors, depending on the selected power system Supports measurement with or without external potential transformers Software-assisted Auto Wiring Change for supported wiring configurations Front-panel wiring information for installation verification Communication One RS-485 communication interface Modbus RTU protocol Device address range from 1 to 247 Communication speeds from 2400bps to 115200bps Configurable parity, data bits and stop bits Response time of less than 50ms Maximum RS-485 transmission distance of 1200 meters Supports integration with EMS, BMS, SCADA and industrial control systems Data Logging and Event Recording Built-in 2MB Flash memory Configurable data logging intervals Records selected measurement parameters Date and time recorded with measurement data Cyclic recording when storage capacity is reached Approximately 40,300 records or 28 days based on the specified recording conditions Stores up to 16 abnormal-event records Event records include source, status, measured value, date and time Energy and CO₂ Management Import, export, total and net active energy Import, export, total and net reactive energy Total apparent energy Accumulated electricity cost display Estimated CO₂ emission calculation Configurable energy display units and CO₂ conversion ratio Pulse Output One open-collector pulse output Maximum output rating of 30V DC and 30mA Assignable to imported or exported active energy Assignable to imported or exported reactive energy Configurable pulse divider Configurable pulse width Test pulse output for meter verification Display and Operation 128 × 64 dot-matrix LCD White LCD backlight Four front-panel operating buttons Quick access to voltage, current, demand, THD, power and energy information Configurable default monitoring screen Front-panel communication and pulse output indicators Password protection against unauthorized configuration changes Built-in date and time display Operating-hour and running-hour counters Installation and Environment Compact DIN-rail design Dimensions of 72 × 58.7 × 87.5mm Flame-retardant black ABS enclosure PA66 terminal block compliant with UL 94V-0 IP20-rated enclosure Operating temperature range of 0 to 60°C Storage temperature range of −10 to 70°C Relative humidity range of 5% to 95%, non-condensing Maximum operating altitude of 2000 meters AC 85–264V or DC 100–300V power input MTBF of more than 60,000 hours CE and FCC compliance

Especificaciones técnicas

Circuit Configuration

Single circuits

Current Sensor Type

SPM-D01-M: Conventional voltage-output CT SPM-D01-R: Rogowski coil

Current Sensor Input

SPM-D01-M: MV, 0–333mV SPM-D01-R: RC, 333mV

LED Indicators

TX, RX, PO and TOU

Display Panel

128 x 64 dot-matrix LCD with white backlight

Display Refresh Rate

0.5 second

Installation

35mm DIN-rail mounting (EN50022)

Date and Time

Perpetual calendar with year, month, day, hour, minute and second

Power Requirements

85–264V AC, 50/60Hz or 100–300V DC

Power Consumption

AC: 5VA maximum DC: 2W maximum

Dimensions (W x D x H)

72 x 87.5 x 58.7mm

Weight

195g

Enclosure

Black flame-retardant ABS

Measurement

True RMS measurement

Sample Rate

128 points per cycle

Power System

1P2W, 1P3W, 3P3W or 3P4W

Load System

Balanced or unbalanced load

Voltage Input Range

20–400V AC, L-N 35–600V AC, L-L

Frequency Range

45–65Hz

Main Circuit Current Input

SPM-D01-M: 333mV CT input SPM-D01-R: 333mV Rogowski coil input

CT Primary Ratio

1–9999A

CT Secondary Ratio

333mV

PT Primary Ratio

100–1200000V

PT Secondary Ratio

50–500V

Overload Capacity

Voltage: 2 times rated voltage continuously; 2500V for 1 second Current: 2 times rated current continuously; 20 times rated current for 1 second

Input Burden

Voltage: <0.2VA; Current: <0.1VA

Auto Wiring Change

Supported under specified wiring and phase-angle conditions

Total Harmonic Distortion

THD of voltage and current

Unbalance

Three-phase voltage and current unbalance

Phase Angle

Voltage and current phase-angle measurement

Calculation Method

Fixed block or sliding block

Period

1–60 minutes

Demand Parameters

Current, active power, reactive power and apparent power demand

Demand Record

Maximum demand value and time stamp

Max./Min. Values

Maximum and minimum parameter values with time stamps

RS-485 Interface

1

Protocol

Modbus RTU

Device Address

1–247

Baud Rate

Up to 115200bps

Response Time

Less than 50ms between completion of command reception and start of data transmission

Data Bits

8 bits

Parity

None, Even or Odd

Stop Bits

1 or 2

Distance

1200m

Maximum Connected Devices

32

Memory Storage

2MB Flash ROM without battery-life limitations

Log Setting

Selected measurement parameters can be recorded at configurable intervals

Interval Time

1–32767 seconds, minutes, hours or days

Date and Time

Year, month, day, hour, minute and second

Storage Method

Cyclic recording when storage capacity is reached

Recording Capacity

Approximately 40,300 records or 28 days when recording ten 4-byte data points every minute

Data Access

Data logs are configured and read through communication

Event Recording

Up to 16 abnormal-event records

Event Information

Event source, status, measured value, date and time

CO₂ Emission

Total CO₂ weight calculated from energy consumption

Output Capacity

Open collector, 30V DC and 30mA maximum

Corresponding Item

Import/export active energy or import/export reactive energy

Output Frequency

1000Hz maximum

Test Pulse Output

1600 pulses/kWh, 50% duty cycle

Pulse Divider

1–9999

Pulse Width

0–5000ms; 0 represents a 50% duty cycle

Operating Temperature

0–60 degrees C

Storage Temperature

-10–70 degrees C

Humidity Rating

5–95%, non-condensing

Temperature Coefficient

100ppm/degree C or less

Operating Altitude (Maximum)

2,000m above sea level

Protection Rating

IP20

Isolation

2kV AC, 50/60Hz for 1 minute between power, input, output and enclosure

Insulation Resistance

≥100MΩ at 500V DC

EMC

EN IEC 61326-1:2021 EN 55011:2016/A2:2021 EN IEC 61000-3-2:2019+A1:2021 EN 61000-3-3:2013+A2:2021 IEC 61000-4-2:2008 IEC 61000-4-3:2020 IEC 61000-4-4:2012 IEC 61000-4-5:2014/A1:2017 IEC 61000-4-6:2013/COR1:2015 IEC 61000-4-8:2009 IEC 61000-4-11:2020/COR1:2020

Safety (LVD)

EN 61010-1:2010/A1:2019/AC:2019-04

FCC

FCC 47 CFR Part 15, Subpart B, Class A