SEM
Smart Energy Manager

SEM is a compact and highly capable monitoring and control device for commercial, industrial and utility based energy management applications. It supports most of the common industrial communication protocols ( Modbus, IEC104, IEC62056 etc.) as well as those being used for IoT applications (REST, MQTT, CoAP etc.). Owing to its embedded click-on communication board, you can choose any type of media over GSM, Wi-fi, Ethernet, Zigbee or Lora. SEM’s power measurement feature provides monitoring of two three-phase circuits simultaneously with a sampling rate of 3.2kHz. Besides, it has an SD Card option up to 32GB to restore data even if there is a loss of communication. Its embedded and expandable digital inputs and outputs make it very easy to have more information from other communicable devices opening the door to a world of connectivity and control.

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  • Device Specifications
  • Technical Specifications
  • Input/Output
  • Power Measurement Specifications
Device Specifications
Supply Voltage Range85 – 264 VAC
Nominal Supply Voltage230VAC
CPUARM Cortex-M4 32 Bit 96 Mhz
Flash1mB
RAM320 kB
Watchdog TimerSystem Reset / 5 sec
Power Consumption2.3W @ 230 VAC
Real Time ClockAvailable
ConfigurationWeb Server Interface / MCU-CX Configurator
Wi-Fi Specifications
Wi-Fi Protocols802.11 b/g/n
Frequency Range2.4 GHz – 2.5 GHz (2400M – 2483.5M)
Wi-Fi AntennaExtenal Antenna On board SMA Connector
RF CertificationSRRC, FCC, CE (RED), IC, NCC, KCC, TELEC (MIC)
Wi-Fi CertificationWi-Fi Alliance
Wi-Fi ModeStation / SoftAP / SoftAP + Station
SecurityWPA / WPA2
Network ProtocolsIPv4, TCP / UDP / HTTP / FTP
GSM Specifications
Embedded GSMYes (Optional)
Operating FrequenciesStandard (Quad Band GSM module 850/900/1800/1900 MHz)
Number of Connections6
GSM AntennaOn Board SMA Connector
Ping BlockingYes
Stop Bit and Parity Bit AdjustmentYes
Identification With Phone NumberYes
Dispatch of warnings and alarms from software as text message to adminis-trators possibleYes
3G / 4G ConnectionOptional
Communication Specifications
Communication ProtocolsModbus-RTU (Slave), IEC60870-5-104, IEC62056-21
Serial InterfacesRS-485, Micro USB C Type 2.0
RS-485 BaudRate1200bps – 115200bps
USB Data Transfer Speed480 Mbit/s
Power Measurement Specifications
Voltage Measurement Range0 – 275 VAC,RMS (L – N), 0 – 500 VAC,RMS (L – L)
Current Measurement Range1 – 4000 AAC,RMS (Split Type)
Frequency50 / 60 Hz ±5%
Voltage Channels3P + N (3 Phase Voltage and Neutral)
Current Channels2 x 3P (Either 3 Phases or 6 Single Phases)
Sampling Frequency128 Sample / Cycle
Voltage Accuracy±0,5%
Current Accuracy±0,5%
Active Energy AccuracyIEC 62053-22 Class 0.5S Mbit/s
Accuracy ClassIEC 61000-4-30 Class S
Basic MeasurementsV, I, f, P, Q, S / kWh, kVArh, kVAh (Four Quadrant) / PF, cos φ / THD-I, TDD-I, THD-U, THD-V / K-Factor / Ih(1-13) – Vh(1-13)
Detailed MeasurementsOutage / Maximum Voltage, Current and Power Demand
Programmable AlarmsUnder Voltage / Over Voltage / Low Current / High Current
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