Ethernet Remote I/O Module M220

Ethernet Remote I/O Module M220

SGD 287

  • Rated Voltage: 12 ~ 36VDC;
  • 4DO+1RJ45+1 RS485 Serial port, supports Modbus RTU Master or slave, can extend I/O modules;
  • DO Sink or Pulse Output.

The M220T Ethernet Remote I/O Module is an industrial class, isolated designed, high reliability, high stability and high precision data acquisition module, embedded 32-Bit High Performance Microprocessor MCU, Integrated 1 Industrial 10/100M adaptive Ethernet module inside. It provides multi I/O, supports standard Modbus TCP, can be intergraded into SCADA, OPC server, and other automation systems. It is design for working in the harsh industrial application environment, widely used in a variety of industrial automation, security monitoring system, automatically measurement and control system.

The M220T Ethernet Remote I/O module provides a RS485 interface, through the RS485 bus, it can cascade Modbus RTU I/O devices or Modbus RTU meters, e.g.: a variety of digital input or digital outputs, analog inputs or outputs, thermal resistance IO module combination, save costs. At the same time, the Ethernet Remote I/O module has register mapping function, the cascade Modbus RTU I/O data are automatically collected to the mapping memory area, the Modbus TCP Client query without waiting then can get a quick response to meet the industrial timely requirements.

The M220T Ethernet Remote I/O module provides 4 digital outputs, supports 10Hz~300Khz high speed pulse output or relay outputs. All of the I/O with high sampling frequency and special filtering strategy to ensure it’s reliable.


Ethernet Remote I/O Module Specifications

• Digital Output



I/O Mode

DO or Pulse Output

Pulse Output Frequency

10Hz~300KHz(Only the 1st Channel can be used as high speed pulse outputs)

Over-Voltage Protection

50 VDC

Over-Temperature Shutdown

175°C (typical), 150°C (min.)

Load Current

Max. 500 mA per channel

Digital sampling frequency



If DO is Sink type, then no isolation. If it is Relay, then is electrical isolation.

• Working Power Requirements

Input Voltage

12 to 36 VDC, Peak Voltage:+40VDC, Power consumption: Less than 3W;

Input Current

139 mA @ 24 VDC



10/100 Mbps, RJ45 ports


15KV ESD Protection


Modbus TCP, TCP/IP,MQTT,TCP Server, TCP Client

Max. TCP Connection


• Serial Port


MODBUS- RTU Protocol, Modbus-ASCII Protocol


15KV ESD Protection

Modbus Slave address


Baud Rate


Mapping registers

Bit Type: 300 Registers, 16-Bit Type: 300 Registers.300

• Physical Characteristics


I/O cable max. 14 AWG


105 x 88 x 30 mm


Under 205 g


DIN rail or wall

• Environmental Limits

Operating Temperature

Standard Models: -10 to 60°C (14 to 140°F) Wide Temp. Models: -40 to 75°C (-40 to 167°F)

Storage Temperature

-40 to 85°C (-40 to 185°F)

Ambient Relative Humidity

5 to 95% (non-condensing)


Up to 3000 m



1. Embedded 32-Bit High Performance Microprocessor MCU, inbuilt watchdog;

2. Wide range power supply 12 ~ 36VDC with over voltage and phase-reversal protection;

3. Management and configuration via LAN connection configuration software for easy operation and maintenance;

4. Integrated 10/100M adaptive Ethernet module, supports Modbus TCP protocol;

5. 4 digital output or relay output, supports 10Hz~300KHz high speed pulse output;

6. High sampling frequency and special filtering strategy to ensure reliability;

7. 1 RS485 Serial port, supports Modbus RTU/ASCII Master, can extend I/O modules;

8. Supports register mapping function and extend I/O inquiry strategy;

9.Provides 1 channel 12~36VDC power source output for external device, saving wiring cost;

10.LED instructions work status, with reset button to reset, easy on-site installation and commissioning;

11.Using metal shell, protection class IP30. Metal shell and system security isolation, especially suitable for industrial applications in the field;

12.Small size, L105 * W88 * H30mm, compatible wall installation and DIN35mm industrial rail installation.

Additional information


T-version, E-version


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