Modbus Solutions

DeviceMaster UP Modbus Solutions

The DeviceMaster UP is the most innovative Modbus gateway available today.

Modbus Member

Flexible, versatile, and highly configurable, the DeviceMaster UP provides unmatched connectivity for a vast array of Modbus implementations.

We have a solution for you — whether your controller communicates through Modbus/TCP, Modbus serial, Ethernet TCP/IP, or COM ports, and whether it is a master or slave; whether your Modbus slave device is Modbus/TCP, Modbus/RTU or Modbus/ASCII serial, is local or remote; or whether your Raw/ASCII device is connected via serial or Ethernet TCP/IP. And whether you require simple connectivity or large scale Modbus networks, we have it covered.

Comtrol has developed three unique Modbus firmware applications designed to provide flexibility, reliability, and ease of use. These Modbus firmware applications can all be loaded onto any DeviceMaster UP, all provide valuable status and statistics information, and all provide the robustness and reliability that you expect in a quality Modbus gateway.


View the Modbus Solutions Brochure

Modbus Router Firmware 

Pure Modbus, multiple Modbus master and slave types , remote, local, and private devices 

  • Modbus Router Firmware

The Modbus Router firmware was developed to provide innovative network-wide Modbus connectivity from a wide variety of Modbus masters to a wide variety of local and remote Modbus slaves. Advanced features include master-to-master communication, private serial bus connectivity, write protection, and device ID aliasing. With simplified configuration pages and advanced routing, Modbus Router provides unmatched Modbus connectivity.

> View more information on Modbus Router Firmware


Modbus/TCP Firmware

Multiple Modbus master and slave types, serial and Ethernet raw/ASCII devices

The Modbus/TCP firmware is the original DeviceMaster UP Modbus application. It has been designed to provide great flexibility for connecting both Modbus serial slaves and Raw/ASCII devices to a variety of Modbus controllers and applications. Such advanced Raw/ASCII options as filtering, command/response mode, peer-to-peer Modbus communications, and simultaneous connections to multiple Modbus controllers and/or Ethernet TCP/IP applications make the Modbus/TCP firmware the flagship of all Modbus to Raw/ASCII gateways.

> View more information on Modbus/TCP Firmware


Modbus Server Firmware

Modbus/RTU over Ethernet master(s) to serial slave(s)

The Modbus Server application was designed to provide enhanced connectivity for OPC servers and applications that require Modbus/RTU communication from Ethernet TCP/IP or COM ports directly to serial ports. While standard gateways provide connectivity for only one application per serial port, Modbus Server provides connectivity for up to six applications per serial port. Modbus Server can be loaded onto any DeviceMaster UP, RTS, or Pro model.

> View more information on Modbus Server Firmware


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