Modbus products

 Integrate serial based process control systems with high capacity Ethernet networks.

Modbus

 

Modbus one of the oldest and most widely used industrial communication protocols, originally developed in 1979 by Modicon, now part of Schneider Electric.  Modbus supports both serial (RS-232, RS-485) and Ethernet (Modbus TCP) communication, bridging old-school industrial systems with modern networked infrastructures.
 
Modbus gateways facilitate the seamless integration of Modbus (RTU or ASCII) with MODBus TCP Ethernet or CANBus networks through fixed, mobile, or WiFi connections. By converting serial Modbus data into Modbus TCP, these gateways allow for remote access and monitoring of devices over the internet or a local network, enhancing both flexibility and scalability.
 
This capability enables older industrial equipment, such as PLCs, sensors, or meters that utilise Modbus RTU, to connect with modern Ethernet based systems.

 

 

 

Modbus to fixed Ethernet

Modbus to TCP gateways allow you to utilise existing Ethernet networks, reducing installation costs in industrial setups.  They connect to Modbus RTU/ASCII devices via a serial port (e.g., RS-485) and then encapsulate the Modbus data into TCP/IP packets (Modbus TCP format) before sending it over the local or wide area IP network.

Mport 3101
Serial RS232 server
Serial server and Modbus Gateway
Mport 3102
Serial device server
2 Port serial server and Modbus gateway
Mport 3102R
2 port Serial server with modbus support
2 port RS232/RS485 Serial to Ethernet Server & Modbus Gateway
Mport 3104
4 port server with modbus
4 Port serial RS232/RS485 server with Modbus gateway
Mport 3108
8 port 232/485/422 serial server
8 Port serial RS232/485/422 server with Modbus support
Mport 3232
32 port high density serial server
32 port serial server with RS232/485/422 & Modbus support
xPress-DR-Plus
xPress
Industrial Wireless Ethernet Device Server
xDirect-IAP
RS232 to Ethernet photo
Industrial Device Server RS232/422/485
EN-GW-007-RS232
RS232 Secure SCADA Gateway
BlackGate Secure AES encryption SCADA Gateway

 

Modbus with WiFi

Convert serial Modbus signals to Modbus TCP and transmit them wirelessly. WiFi eliminates the need for long cable runs, making these gateways ideal for large facilities or remote locations.

Mport 3101W
Wireless serial server
Wireless Serial extender
CT-GW211W-MQ
Modbus gateway with MQTT
Serial to Ethernet / WiFi - Modbus to MQTT Gateway
CT-GW211W-MB
MODBUS Wireless
Modbus RTU to Modbus TCP Gateway

 

CANBus TO Modbus

Integrate modern CANbus based sequipment to existing Modbus infrastructures without requiring a system overhaul.
Acting as a translator between real time, high speed, and fault tolerant CANbus and Ethernet or serial based Modbus systems.  In mixed protocol environments, these gateways ensure that sensor readings, diagnostic codes, or control signals from a CANbus network can be accessed by a Modbus based system.

MW-CAN100
Canbus Server
CANbus to Serial RS232/485 Converter
MW-CAN200
Canbus server
2 Port CANbus Opto isolated Ethernet Server
MW-CAN300
CANbus to Ethernet and Serial Opto isolated Ethernet Server
CANbus to Ethernet and Serial Opto isolated Ethernet Server

 

Modbus Notes

Modbus TCP / RTU integration

Since its inception in 1979 Modbus has become a widely used communication protocol in the field of industrial automation. Originally based on serial interfaces (RS232 and RS485) Modbus RTU enjoys widespread use throughout many different industries. Since then Ethernet has become the network of choice and many industrial devices now have native Ethernet interfaces. Modbus TCP is used over Ethernet and most SCADA networks have adopted this as their protocol of choice but there are challenges when it comes to connecting Modbus TCP and Modbus RTU networks together.

This document identifies common scenarios and looks at each can be overcome.

Read more...