Modbus Organization

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Smar UK Ltd

Member: No


3 Overhill Road
Cirencester, Gloucestershire, GL7 2LG UNITED KINGDOM

Phone: +44 (0) 797 0094138
Fax: +44 (0) 797 4747502
Web Site:
Contact: Robin Burnikell


Smar provides leading process control systems, instrumentation and automation to process industries, specialising in open standards; Modbus, Foundation Fieldbus, Profibus, HART, and OPC.


Product Name Type Connectivity Product Description
Modbus Serial to Fiber Optics ConverterModemModbusThe OPT-700 is a Fiber Optic Modem designed to provide a versatile connection between Modbus asynchronous serial communication interfaces such as RS-232c and RS-485 using Fiber Optic cable. It will allow any Modbus equipment that uses half-duplex, asynchronous serial communication at typical distances up to 4.0 km with the great benefit of EMI immunity.
Modbus RS232 / RS485 InterfaceI/O InterfaceModbusThis device is a Modbus RS232 / RS485 Interface enabling Modbus RS232 devices to operate in a Modbus RS485 multi-drop environment.
Modbus RTU/TCP Ethernet ModuleNetwork GatewayModbus, Modbus TCP/IPThe Enet-700 connects an Ethernet network to either RS485 or RS232, acting as a bridge for Modbus TCP/IP and Modbus RTU. The Enet-700 allows selection between RS-232C and RS-485.
Modbus RTU and TCP/IP ProcessorNetwork GatewayModbus, Modbus TCP/IPThe MB700 is both a Modbus TCP/IP & RTU Gateway and a Modbus Data Concentrator. The MB700 allows remote configuration and monitoring of devices that use the MODBUS RTU protocol by TCP/IP.
Foundation Fieldbus Universal BridgeNetwork GatewayModbus, Modbus TCP/IPThe DFI302 is a programable bridge able to integrate Modbus (RTU & TCP/IP), Foundation Fieldbus (H1 & HSE), HART and conventional I/O in one unit. It supports Function Block programing and can be configured as either a Modbus Client or Modbus Server.