Energy Module

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Technical Specifications

  • 1 Processor Microchip PIC32MX575F256H
  • 1 RS485 bus connection (A and B line) – 1200 meters maximum bus length
  • 1 Jumper for RS485 bus termination
  • Program Connector
  • 8 Digital inputs
  • 8 Green input state LEDs
  • 1 Orange status LED
  • 1 Green power LED
  • 2 Network registering buttons
  • Automatic network address generation
  • 12VDC power supply, reverse polarity protected
  • 25mA current consumption
  • DIN rail mountable, takes up 3T
  • Dimensions: 5.8cm × 5.3cm × 9cm
  • Used in conjunction with a Master module
  • The Input and Temperature modules feature have identical hardware but runs a different firmware
  • Programming language firmware: Pic Basic Pro
  • Bootloader: Yes

Firmware

Hex.png

Current version

N/A
N/A

Help

Measurement Specifications

  • Voltage Measurement
    • True RMS
    • Accuracy <1%
    • Resolution in float (32 bits)
  • Frequency Measurement
    • Accuracy <1%
    • Resolution in float (32 bits)
  • Current Measurement
    • True RMS
    • Accuracy 0.1% (dynamic range 1000:1)
      • Depends on accuracy of current clamp connected
    • Resolution in float (32 bits)
  • Power Measurement
    • Accuracy 0.1% (dynamic range 4000:1)
      • Depends on accuracy of current clamp connected
    • Resolution in float (32 bits)
  • Energy Measurement
    • per current channel
    • resolution integer (32 bits) for Wh
    • can be reset
  • Voltage Samples per channel (1 period)
    • Updated 1Hz
    • sampled at 4096Hz (80 samples for 50Hz)
    • Resolution in float (32 bits)
  • Current Samples per channel(1 period)
    • Updated 1Hz
    • sampled at 4096Hz (ex. 80 samples for 50Hz)
    • Resolution in float (32 bits)
  • Voltage frequency samples
    • Updated 1Hz
    • DC - 20th harmonic
    • Resolution in float (32 bits)
  • Current frequency samples per channel
    • Updated 1Hz
    • DC - 20th harmonic
    • reference on matching voltage rising zero cross
    • Resolution in float (32 bits)
  • Current Factor can be set for different current clamps
    • ex. current clamp of 5A or 5000A can be connected.
    • if a very big current clamp is used, the energy measurement can overflow faster.

Hardware

This module consists of the following PCBs (Printed Circuit Boards):

OMHEY
The main PCB that houses all module specific components
OMHT6
Generic top panel PCB with all front panel interface components