4DIN+4AIN+2AO+4DO Ethernet Remote IO Module M120 T/E
Quick Info
M120 Ethernet Remote I/O Module provides 4 optical-isolated digital inputs, supports Max. 700KMHz high speed pulse counter, 4 isolated 12bits analog inputs, supports 0~5V,0~10V,4~20mA,0~20mA analog signal,2 channel 12bits analog outputs, supports 0~10
T Version: 1*RJ45+1RS485+4DIN+4AIN+2AO+4DO
E Version: 2*RJ45+1RS485+4DIN+4AIN+2AO+4DO

- T Version: 1*RJ45+1RS485+4DIN+4AIN+2AO+4DO
- E Version: 2*RJ45+1RS485+4DIN+4AIN+2AO+4DO
The M120 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 1-2 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 M120T 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 M120T Ethernet Remote I/O module provides 4 optical-isolated digital inputs, supports max. 700KHz high speed pulse counter, 4 isolated 12bits analog inputs, supports 0~5V,0~10V,4~20mA,0~20mA analog signal, 4 digital outputs, supports 10Hz~300KHz high speed pulse output or relay outputs, 2 channel 12bits analog outputs, supports 0~10VDC signal output. All of the I/O with high sampling frequency and special filtering strategy to ensure it’s reliable.
1. Embedded 32-Bit High Performance Microprocessor MCU, inbuilt watchdog;
2. Wide range power supply 24 ~ 36VDC with over voltage and phase-reversal protection;
3. Management and configuration via LAN connection configuration software for easy operation and maintenance, Integrated 10/100M adaptive Ethernet module, supports Modbus TCP,MQTT protocol;
4. 4 optical isolated digital input, supports max. 700KHz high speed pulse counter;
5. 4 digital output or relay output, supports 10Hz~300KHz high speed pulse output;
6. 4 isolated analog input, 12-bit resolution, supports 0~20mA,4~20mA,0-5VDC, 0-10VDC;
7. 2 analog output, 12-bit resolution, supports 0-10VDC;
8.High sampling frequency and special filtering strategy to ensure reliability;
9. 1 RS485 Serial port, supports Modbus RTU/ASCII Master, can extend I/O modules;
10. Supports register mapping function and extend I/O inquiry strategy;
11. Provides 1 channel 24~36VDC power source output for external device, saving wiring cost;
12. LED instructions work status, with reset button to reset, easy on-site installation and commissioning;
13. Using metal shell, protection class IP30. Metal shell and system security isolation, especially suitable for industrial applications in the field;
14. Small size, L105 * W88 * H30mm, compatible wall installation and DIN35mm industrial rail installation.
M120T Specifications
Ethernet Remote I/O Module Specifications | |
• Digital Input | |
Sensor Type | Wet Contact (NPN or PNP), Dry Contact |
I/O Mode | DI or Event Counter |
Dry Contact | • On: short to GND=1 • Off: open=0 |
Wet Contact (DI to COM) | • On: 10 to 30 VDC =1 • Off: 0 to 3 VDC=0 |
Counter Frequency | 700KHz(Only the 1st Channel can be used as high speed pulse counter) |
Digital sampling frequency | 500Hz |
Digital filtering strategy | Continues 3 times |
Isolation | Optical Isolated,3k VDC or 2k Vrms |
• Digital Output | |
Type | Sink |
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 | 500Hz |
• Analog Input | |
Type | Differential input |
Resolution | 12 bits |
I/O Mode | Voltage / Current (jumper selectable) |
Input Range | 0 to 10 VDC, 0 to 20 mA, 4 to 20 mA, 4 to 20 mA |
Accuracy | ±0.1% FSR @ 25°C ±0.3% FSR @ -10 and 60°C ±0.5% FSR @ -40 and 75°C |
Sampling frequency | 20Hz |
Isolation | Electrical isolation |
• Analog Output | |
Type | Differential input |
Resolution | 12 bits |
Output Range | 0 to 10 VDC |
Drive Current | 1A (max.) |
Accuracy | ±0.1% FSR @ 25°C ±0.3% FSR @ -10 and 60°C ±0.5% FSR @ -40 and 75°C |
Isolation | No |
• Working Power Requirements | |
Input Voltage | 24 to 36 VDC, Peak Voltage:+40VDC, Power consumption: Less than 3W; |
Input Current | 139 mA @ 24 VDC |
• Power Output | |
Output Voltage | 24 to 36 VDC |
Output Current | 139 mA @ 24 VDC |
• LAN | |
Ethernet | 10/100 Mbps RJ45 ports |
Protection | 15KV ESD Protection |
Protocols | Modbus TCP, TCP/IP,MQTT, TCP Server, TCP Client |
Max. TCP Connection | 5 |
• Serial Port | |
RS485 | MODBUS- RTU Protocol, Modbus-ASCII Protocol |
Protection | 15KV ESD Protection |
Modbus Slave address | 1~255 |
Baud Rate | 1200,2400,4800,9600,19200,38400,57600,115200,128000Bps; |
Mapping registers | Bit Type: 300 Registers, 16-Bit Type: 300 Registers. |
• Physical Characteristics | |
Wiring | I/O cable max. 14 AWG |
Dimensions | 105 x 88 x 30 mm |
Weight | Under 205 g |
Mounting | 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) |
Altitude | Up to 3000 m |
Typically applications:
1. BTS Monitoring;
2. Security Alarm System applications;
3. Supervision and monitoring alarm systems;
4. Automatic monitoring system;
5. Vending Machines security protection;
6. Pumping Stations, Tanks, Oil or Water levels;
7. Buildings and Real Estate;
8. Weather Stations;
9. River Monitoring and Flood Control;
10. Oil and gas pipelines;
11. Corrosion protection
12. Temperatures, water leakage applications;
13. Wellheads, boat, vehicle;
14. Energy saving, street lights control system;
15. Valve controls;
16. Transformer stations;
17. Unmanned machine rooms;
18. Control room application;
19. Automation System, M2M;
20. Access Control System;
21. PLC Gateway, PLC Remote Monitoring.