Sensor Interface Unit (SIU6)

Model Embedded Systems SIU6

The SIU6 is a packaged, turn-key Embedded I/O System for data acquisition and distribution applications. It features a compact, conduction cooled power supply and Ethernet/Network-centric communications.

The SIU leverages NAI’s mix-and-match multifunction boards. This allows users to populate each board with function specific modules. This unique modular architecture allows selection of up to twelve different or same function modules from a broad assortment of signal interface modules such as I/O, Synchro/Resolver-to-Digital and LVDT, and serial communication modules such as RS232/422/485, MIL-STD-1553, CANBus and ARINC429. This approach increases packaging density, saves enclosure slots, reduces power consumption and adds continuous background BIT testing. Automatic background BIT testing, an important feature, is always enabled and continually checks the health of each channel. A fault is immediately reported and the specific channel is identified. Additional processing support can be incorporated via the use of a Blackfin™ BF-533 DSP processor module taking advantage of Analog Devices, Inc. (ADI) Visual DSP++ Development Environment. This allows processing of the raw data available from the I/O functions. This capability and provides significant benefits including:

• Formatting and packetizing data for immediate use by the system processor
• Use of other serial I/O protocols instead of Ethernet, if required.
• Functions can be applied to individual data channels. A typical example would be an average of data over a specified time.
• Functions can be applied to multiple data channels. For example allow a discrete channel activation to cause the reporting of the current state of other I/O channels.