Audon Electronics is offering a new range of low-cost modules for connecting remote input and outputs to Scada systems using the Modbus protocol Audon Electronics is introducing a family of low-cost Modbus-based remote I/O units that provide a simple way to interface analogue or digital signals to supervisory Scada systems.

There are several models in the range for handling voltage, current, thermocouple and PT-100 inputs, voltage and current outputs, and digital and relay I/O. Modules are supplied with the IO Studio configuration software, but the optional DAQ Studio software can be used to provide a data acquisition, trending and alarm management interface for the PC. The modules are also said to be compatible with all SCADA packages such as DAQFactory.

As well as offering good reliability for distributed control applications, the low-cost modules are also compact, easy to integrate with existing Modbus networks, and simple to use. Various types of I/O module are available, all with LED indicators for status and fault diagnostics.

There are four digital I/O modules: the 16DI has 16 digital inputs, which also double as 32-bit pulse counter inputs; the 16DO has 16 open-collector transistor outputs; the 4RO has four mains-capable power relays; and the 8DIO is a combination unit with eight digital inputs and eight transistor outputs.

For more information, visit www.audon.co.uk