Data Acquisition

ET-2242U

  • Built-in Web Server
  • Support Modbus TCP/UDP, MQTT, and SNMP V2c Protocols
  • 2-port Ethernet Switch (LAN Bypass) for Daisy-Chain Wiring
  • Dual Watchdog
  • I/O Pair Connection (Push and Pull)
  • Built-in I/O
    • 16-channel DO selectable as either Sink- or Source-type via wire connection
  • LED Display to Indicate the I/O Status

Introduction

Providing various digital I/O functions, the ET-2242U module is an Ethernet I/O monitoring and control module. The module can be remotely controlled through a 10/100 M Ethernet network by using Modbus TCP/UDP protocol. Modbus has become a de facto standard communications protocol in industry and is now the most commonly available means of connecting industrial electronic devices. This makes the ET-2242U module perfect integration with the HMI, SCADA, PLC, and other software systems.

The ET-2242U provides 16 sink- or source-type digital output channels by wire connection and each channel can drive a 500 mA load. There are configurable power-on and safe values for digital output. With 2 Ethernet ports, the ET-2242U allows a daisy chain connection which permits flexibility in locating devices, eases installation, and lowers infrastructure costs. It features 8 kV ESD protection, 4 kV EFT protection, 3 kV surge, and 3000 VDC I/O isolation are also provided to enhance noise protection capabilities in industrial environments.

The module can be used to create DI to DO pair-connect through the Ethernet. After configuration, the ET-2242U module can poll the status of remote DI channels via the Modbus TCP protocol and write data to local DO channels.

It is equipped with a removable terminal block connector for easy and robust wiring in industrial situations and features a powerful 32-bit ARM MCU to handle efficient network trafficking.

ET-2242U module supports MQTT protocol and can act as a message publisher and subscriber. After connecting to the server MQTT Broker, the I/O status of the module can be published in the form of a topic, and can also receive messages from the same subscription topics. In communication, when the ET-2242U module is disconnected from the broker, the module has a reconnection mechanism that can automatically reconnect with the broker. In addition, there is a Keep-Alive Interval mechanism to ensure that the connection with the Broker is always maintained.

The ET-2242U supports the standard SNMP V2c specification. Through this specification, ET-2200 can transmit module information and I/O information to SNMP network management equipment or software (SNMP Network Management Software) to help administrators monitor the status of ET-2200 in real time. If the Trap function is enabled, when the module I/O status changes or reboots, it can send a message to the manager to keep track of the channel status at any time.

Application

Factory, Building and Home Automation Remote Maintenance

Specifications

 Software
 Built-in Web Server Yes

 

 CPU Module
 CPU 32-bit ARM
 Watchdog Timer Module, Communication (Programmable)

 

 Isolation
 2-way Isolation Ethernet: 1500 VDC
I/O: 2500 VDC

 

 EMS Protection
 EFT (IEC 61000-4-4) ±4 kV for Power Line
 ESD (IEC 61000-4-2) ±4 kV Contact for Each Terminal
±8 kV Air for Random Point
 Surge (IEC 61000-4-5) ±2 kV for Power Line

 

 LED Indicators
 Status Run, Ethernet, I/O

 

 Digital Output
 Channels 16
 Type Push-Pull
 Sink/Source (NPN/PNP) Sink/Source
 Load Voltage +3.5 to +80 VDC
 Load Current 500 mA/channel
 Power on Value Programmable
 Safe Value Programmable

 

 Ethernet
 Ports 2 x RJ-45, 10/100 Base-Tx, Switch Ports
 LAN bypass Yes
 Security Password and IP Filter
 Protocol Modbus TCP, Modbus UDP, MQTT, and SNMP V2c

 

 Power
 Reverse Polarity Protection Yes
 Consumption 2.6 W (max.)
 Powered from Terminal Block +10 to +48 VDC

 

 Mechanical
 Casing Plastic
 Dimensions (mm) 33 x 126 x 108 (W x L x H)
 Installation DIN-Rail mounting

 

 Environment
 Operating Temperature -25 ~ +75 °C
 Storage Temperature -40 ~ +80 °C
 Humidity 10 to 90% RH, Non-condensing

 

Description

 PRODUCT SERIES     DESCRIPTION    QNT   INQUIRY
 ET-2242U     CR  Ethernet I/O Module with 2-port Ethernet Switch and 16-ch Sink/Source-type DO (RoHS) 1