I/O units integrate Scada systems
An
Audon Electronics product story
Edited by the Engineeringtalk editorial team
Oct 26, 2007
The optional DAQ Studio software can be used to provide a data acquisition, trending and alarm management interface for the PC.
Audon Electronics has released low-cost Modbus-based remote I/O units which provide a simple way of integrating analogue or digital signals to supervisory Scada systems.
Models in the range include voltage, current, thermocouple and PT-100 inputs, voltage and current outputs and digital and relay I/Os.
They are supplied with the IO Studio configuration software.
The optional DAQ Studio software can be used to provide a data acquisition, trending and alarm management interface for the PC.
The units are also compatible with all Scada packages such as DAQFactory.
These I/O modules offer good reliability with a low-cost solution for distributed control applications.
They are compact, easy to integrate with existing Modbus networks and simple to use.
Various types of I/O modules are available for different kinds of requirements.
All I/O modules have LED indications of IO status and fault diagnostics.
All I/O modules have an isolated two-wire RS485 interface.
The use of Modbus RTU protocol allows for easy integration with most Scada software packages such as DAQFactory.
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, while the 4RO has four mains-capable power relays, and the 8DIO is a combination unit with eight digital inputs and eight transistor outputs.
The analogue I/O modules include the 8AIIS and 8VIS which accept eight 4-20mA or voltage inputs.
The 8TCS accepts eight thermocouples including K, E, T, N, B, S, R, mV, C, D and G types.
The 6RTD accepts six 3-wire RTD temperature probes and the 8AOI and 8OV are eight-channel 4-20mA and voltage output models.
IOStudio is a free software package supplied with the units used to configure the communication settings for I/O modules on the Modbus network.
Once a module is detected, it is possible to view real-time data of the module directly on the PC and it can be used for diagnostic purposes.
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