Modbus I/O solution

April 2006 Fieldbus & Industrial Networking

The ADAM-4000 Series is a complete I/O solution featuring Modbus network support with a robust and intelligent design. It is an easy-to-use and cost-effective choice for system I/O requirements. The Modbus devices communicate over a serial network in a master/slave type relationship using either ASCII or RTU mode. The Adam-4000 Modbus I/O modules are designed to operate as slave devices on a Modbus network which communicates in Modbus/RTU transmission mode.

With its built-in Modbus/RTU protocol, any controller bearing Modbus/RTU standard can be integrated as part of a control system. Any Modbus Ethernet data gateway can upgrade these I/O modules up to the Modbus/TCP Ethernet layer. Most HMI software is bundled with a Modbus driver and can access the Adam-4000 I/O directly. The Modbus OPC server and Modbus/TCP OPC server are provided as data exchange interfaces between the ADAM-4000 Modbus I/O and any Windows application.

ADAM-4000 modules support both Modbus and RTU protocols and the communication mode can be selected through Windows Utility Software. If users apply the Adam protocol, ASCII command/response will remain the same. In RTU mode, data is sent as two four-bit, hexadecimal; characters, providing higher throughput than in ASCII mode for the same baud rate.

Included in the Adam-4000 series are analog input, T/C input, RTD input, analog output, digital input/output and relay output modules. Various modules are designed with channel differential, 3 kV d.c. system isolation, while others offer 4-20 mA input range without the use of an additional resistor.

For more information contact Elton Prytz, ProMicro, 011 706 7913, [email protected], www.promicro.co.za

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