Modbus TCP/IP Converters

Connect Modbus Equipment to Ethernet

Perle’s Modbus to TCP/IP Converters, commonly referred to as Terminal Servers or Device Servers easily connect Modbus based equipment to Ethernet.

  • Communicate with multiple Modbus devices at the same time across a network
  • Replace existing serial dial-up modem connections
  • Use Modbus-Ethernet to connect serial PLCs to Ethernet
  • Securely connect factory floor devices to your network
  • Modbus TCP, ASCII, RTU and DF1 protocols

With the broadest choice of full featured Modbus to Ethernet solutions available, Perle has the right product to meet your RS232 to Ethernet or RS485 to Ethernet conversion project.

Get a quote Product question?

Device Servers
Device Server
  • 1, 2 and 4 serial ports
  • 10/100 or 10/100/1000 Ethernet
  • RS232, RS422 or RS485 interface
  • DB9, RJ45 and DB25 connectors
Terminal Servers
Terminal Server
  • 4 to 48 serial ports
  • RS232, RS422 or RS485 interface
  • 10/100/1000 Ethernet
  • AC and 48v DC power models

Converting Data from Modbus to Ethernet

Modbus data sent and received on serial ports on the Modbus to Ethernet adapter are encapsulated in Ethernet packets in a manner that best fits the type of data being transported. Learn more about Modbus Gateway Support on Perle IOLAN Serial to Ethernet Converters.

Using RAW TCP Sockets

A raw TCP socket connection which can be initiated from the serial-Ethernet device or from the remote host/server. This can either be on a point to point or shared basis where a serial device can be shared amongst multiple devices. TCP sessions can be initiated either from the TCP server application or from the Perle IOLAN serial-Ethernet converter.

diagram-tcp

Using RAW UDP Sockets

For use with UDP based applications, Perle IOLANs can convert serial equipment data for transport across UDP packets either on a point to point basis or shared across multiple devices.

diagram_console

Console Management

For access to remote console ports on routers, switches,etc, Perle IOLAN’s enable administrators secure access to these RS232 ports via inband Reverse Telnet / SSH or out of band with dial-up modems. Perle IOLAN models with integrated modems are available.

diagram_console

Connect Serial-based Applications with a COM/TTY Port Driver

Serial ports can be connected to network servers or workstations running Perle's TruePort software operating as a virtual COM port. Sessions can be initiated either from the Perle IOLAN or from TruePort.

diagram_comtty

Serial Tunneling between two Serial Devices

Serial Tunneling enables you to establish a link across Ethernet to a serial port on another IOLAN. Both IOLAN serial ports must be configured for Serial Tunneling (typically one serial port is configured as a Tunnel Server and the other serial port as a Tunnel Client).

diagram_tunneling

Virtual Modem

Enables the serial-Ethernet converter to simulate a modem connection. When connected to the IOLAN and initiates a modem connection, the IOLAN starts up a TCP connection to another IOLAN serial-Ethernet converter configured with a Virtual Modem serial port or to a host running a TCP application.

diagram_modem

Learn more about Serial over Ethernet Solutions and Terminology

Back to top