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EC-M11-EG-C3-S – DATASHEET

Updated on September 2, 2024

Product Features #

  • ESP32-WROOM32 Module
  • Load Cell Input

Communication

  • LoRaWAN Communication
M11 E Series

Main #

Range of ProductNORVI EC M11
Product TypeProgrammable Node
CertificationsEN 61131-2:2007
EN 61010-1:2010+A1:2019
EN IEC 61010-2-201:2018
2014/30/EU- Electromagnetic Compatibility (EMC)
Annex III, Part B, Module C 
Rated supply voltage24V DC
CommunicationWiFI / Bluetooth
RS 485
LoRaWAN Communication
Inputs and Outputs1 x Load Cell Input
Displays and Visual IndicatorsGreen and Red LED

Complementary #

Product Unified CodeNORVI EC-M11-EG-C3-S
Product Part Numbers NORVI EC-M11-EG-C3-S

Mechanical Properties #

EnclosureWP8-10-4G
Mounting / Installation MethodWall mount Electrical Pole mount – accessory required
Terminal Type8-position Molding Cable / AWG24 / Length 2 meters
Terminal ArrangementColor-Coded Tinned Wires
Depth35 mm
Height100 mm
Width75 mm

Environment #

IP degree of protection IP20
Operating altitude 0 – 2000 meters
Operating Temperature – –10 … +85° C
Storage altitude 0 – 3000 meters
Shock resistance 15 gn for 11ms
Resistance to electrostatic discharge 4kV on contact 8kV on air
Resistance to electromagnetic fields 10 V/m (80 MHz …… 1GHz) 
3 V/m (1.4 MHz …… 2 GHz) 
1 V/m (2 MHz …… 3 GHz)

Electrical Characteristics #

Grid-powered devices #

Rated Supply Voltage (V)  24V DC
Current Consumption (mA)  400mA
Recommended Power Source  1W 24V DC

Processing #

SOC / MCUESP32-WROOM32
Flash Memory4MB
ROM448 KB
SRAM520 KB
PSRAMNOT AVAILABLE

INPUTS and OUTPUTS #

Load Cell Input #

Number of Load Cell Inputs1
Module TypeHX711
PD SCKGPIO32
DOUTGPIO33

8-pin Connector and wire harness #

Pin Description #

8P MaleWire colourI/O Configuration
1WhiteA+
2BrownA-
3GreenB+
4YellowB-
5GrayRS-485A
6PinkRS-485B
7BluePower+
8RedPower-

Communication Channels #

RS-485 Communication #

Communication ModeHALF-DUPLEX
TransceiverMAX485
Unit Load1/4
Flow Control / Direction Control PinGPIO13
TX PinGPIO2
RX PinGPIO4

LoRaWAN #

SpecificationLong Range(LoRa)
RF TransceiverOrder depending on regional regulations
SPI MISOGPIO19
SPI MOSIGPIO23
SPI SCKGPIO18
NSSGPIO26
DIO0GPIO25
DIO1GPIO27
RESETGPIO15

GPIO Map #

GPIODescriptionUsage
0outputs PWM signal at bootNRST
1USB to UARTTX0
2RS-485TX1
3USB to UARTRX0
4RS-485RX3
5outputs PWM signal at boot
13RS-485Flow Control
14outputs PWM signal at boot
15LoRa RESET
16
18  LoRaSPI SCLK
19LoRaSPI MISO
23LoRa SPI MOSI
25LoRa DIO0
26LoRa NSS
27LoRa DIO1
32Load Cell InputPD SCK
33Load Cell Input DOUT