Interface Controller EM-481

Interface Controller EM-481

Product Details:

 
Network Types RS-485 Modbus RTU/ASCII, Ethernet, GSM-GPRS (SIM Card)
Model Name/Number EM-481
Power Supply 12V DC
Network Type 3G
Compatible Brand Any
Brand NOVATEK ELECTRO
Application Remote Monitoring, IOT

EM-481 provides data collection from connected MODBUS devices, data transfer to the server, data access via MODBUS TCP (GPRS, Ethernet) or SMS text messages (GSM), event tracking and response to events (sending SMS notifications, recording values to MODBUS devices).

EM-481 provides:

· Flexible options of connection (via wire or wireless communication, automatic method selection of communicating with a server, automatic or manual selection of GSM provider and communication parameters,

resetting of MAC-address and other Ethernet settings;

· Protection of access (password for setting mode, filter of IP-address for setting or connection to Modbus network, connection only to the selected server with automatic login, password for control via SMS);

· Different modes of data interchange via MODBUS network (RTU or ASCII, with checking of parity for even-odds or without checking, wide range of transmitting rate, adjustable delay);

· Programming the collection of data, events, and action for events (see Appendix С);

· Service functions (real time clock, firmware updating option).

The device provides control for MODBUS devices in RS-485 network via Ethernet interfaces or GPRS, or via SMS. The device also allows reading data of devices by MODBUS. The processor supports connection to cloud-based data collection server via Ethernet network with a help of microchip of physical interface of Ethernet (or via GPRS with a help of in-built GSM-modem, if connection via Ethernet is not available).

In addition, the device can be connected to Ethernet via MODBUS TCP Protocol to exchange data with MODBUS devices, or with EM-481. The controller receives and processes SMS with a password and command read/write for Modbus devices.

When inserting a memory card the device reads the internal memory for operational logic - program for data collection and tracking of events. The program runs in the background mode.

The device stores the network settings, safety parameters, the logic of action, the collected data log in the built-in memory.

Additional Information:

  • Item Code: EM-481
  • Port of Dispatch: New Delhi, India

Technical Specifications:

Description

Value

DC rated supply voltage, V

12

Data exchange interface via wired network

10Base-T/100Base-T

Supported Ethernet protocols

UDP, ARP, TCP

Data exchange interface via wireless network

GSM

Supported standards of wireless network

SMS, GPRS

Integrated servers

   MODBUS TCP, HTTP

Maximum number of connections via Modbus TCP protocol

4

Data exchange interface via Modbus network

RS-485

Supported protocols of Modbus network MODBUS via RS-485

MODBUS RTU,

MODBUS ASCII

Transmission speed in the MODBUS network via RS-485, bit/s

75 – 921600

Maximal output voltage of driver RS-485, V

3.3

Short circuit output voltage of driver RS-485 (maximum), mA

250

Resistance of in-built terminator, Ohm

70 – 1000 Ohm or disabled

The recommended number of connected devices in Modbus network:

  • when the input current of receivers on RS-485 bus is no more than 0.125 mA;
  • when the input current of receivers on RS-485 bus is no more than 1 mA;

 

256 max.

32 max.

Readiness time when power is applied, no more than, s

15*

The supply voltage at which the operability is maintained

9 –30

Power consumption (under load), W, not more than

6

Device service

Switchgear and control-gear

Rated operating condition

Continuous

Protection class rating

IP20

Electric shock protection class

II

Climatic design version

UHL 3.1

Permissible contamination level

II

Overvoltage category

II

Rated voltage of insulation, V

450

Rated impulse withstand voltage, kV

2.5

Conductor cross-section for connecting to terminals, mm²

0.5-3

Tightening torque of the terminal screws, N * m

0.4

Weight, kg, maximum

0.400

Overall dimensions (Fig. 1.1), H*B*L, mm

  • with installed GSM antenna
  • without GSM antenna

 

64.5*106.5*36

64.5*100*36

Installation (mounting) of the device is on standard 35 mm DIN-rail

The device remains operational capability in any position in space

Housing material - self-extinguishing plastic

Notes: * Connections in Ethernet networks/Internet can take more time.

 

EM-481 meets the requirements of the following:

  • EN 60947-1, Low-voltage switchgear and control-gear; Part 1; General rules;
  • EN 60947-6-2, Low-voltage switchgear and control-gear; Part 6-2; Multiple function equipment; Control and protective switching devices (or equipment) (CPS);
  • EN 55011, Industrial, scientific and medical RF equipment; Electromagnetic interference characteristics; Limits and methods of measurement;
  • IEC 61000-4-2, Electromagnetic compatibility; Part 4-2; Testing and measurement techniques; Electrostatic discharge immunity test.

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