The USR-TCP232-E2 is an embedded UART to Ethernet converter and serial to Ethernet converter module with Modbus gateway functionality, designed for seamless data transmission between serial devices and Ethernet networks. With its support for Modbus RTU to Modbus TCP gateway, this device enables easy integration with Modbus-based systems.
The USR-TCP232-E2 also features a redundant power supply, ensuring uninterrupted operation even in the event of a power outage. With an additional serial port and support for TCP server/client, UDP server/client, https client, and virtual COM, this device offers a flexible and versatile solution for data communication in industrial applications.
Other key features include support for the RS-485 enable pin of an external RS-485 transceiver, wide voltage input range DC 3.3V, flow control XON/XOFF, and configuration via web server page, AT commands, and Windows utility. With its robust design and reliable performance, the USR-TCP232-E2 is an ideal choice for any industrial serial to Ethernet conversion application.
Features
Modbus Gateway: Modbus RTU to Modbus TCP Redundant Power Supply Serial Port No.2 Support TCP server/client, UDP server/client, https client, Virtual COM Support RS-485 enable pin of an external RS-485 transceiver Wide voltage input range DC 3.3V Flow control XON/XOFF Configuration via Web Server page, AT commands, and Windows Utility
Resources
[Datasheet] USR-TCP232-E2(H7-Y) Datasheet
Specifications

Item

Parameter

Description

Hardware
Parameters

Input Voltage

VCC:3.03.6V, (3.3Vrecommended)
VDD:4.755.5V, (5.0Vrecommended)

Input Current

[email protected]/[email protected]

Dimensions

50.5×30.0x23.2mm(LxWxH)

Encapsulation

DIP encapsulation

Operating Temperature

-40~85C

Storage Temperature

-40~105C

Operating Humidity

5%95%RH(non-condensing)

Storage Humidity

5%95%RH(non-condensing)

Certifications

CE/FCC/ROSH

Interface Parameters

Ethernet Port Spec.

RJ45, 10/100Mbps, auto MDI/MDIX

Ethernet Port No.

1

Serial Port Spec.

UART TTL 3.3V

Serial Port No.

2

Serial Baud Rate

600-1M(bps)

Data Bit

7, 8

Parity

None, Even, Odd

Flow Control

None, RTS/CTS, XON/XOFF

RS-485 Pull-up and Pull-downResistor

2.2 KOhm

Software Parameters

Network Protocol

IP/TCP/UDP/DHCP/DNS/HTTP/ARP/ICMP

IPMode

Static IP, DHCP

ModbusTCP

Support

Websocket

Support

HTTP Client

Support

UDPBroadcast

Support

User Configuring

Setup utility, webpage, AT commands

Serial Packets Cache

Dynamic packet cache.
For example:
When the packet length is 10 byte, the serial port can cache 450 packets(4.5KB).
When the packet length is 1460 bytes, the serial port can cache 10 packets(14.6KB).

Ethernet Packets Cache

48Kbyte

Function Diagram

Multiple Working Modes

Modbus Gateway
The USR-TCP232-E2 is designed to seamlessly convert between Modbus RTU and Modbus TCP protocols, providing efficient and reliable data transmission between serial and Ethernet networks. It also supports Modbus multi-host polling, making it an ideal solution for industrial automation applications. With features such as redundant power supply, a second serial port, and support for TCP/UDP/https, as well as virtual COM and external RS-485 transceiver, the USR-TCP232-E2 is a versatile and flexible choice for your serial to Ethernet conversion needs. It supports configuration via web server page, AT commands, and Windows utility, making it easy to set up and customize to your specific requirements.

Product Overview