The PC104PLUS-30C is the latest in PC/104PLUS data acquisition boards from Eagle Technology. The compact board features 16 analog input channels, 24 digital I/O channels and four analog outputs all on one board.
The 16 input channels have an overall sampling speed of 100 kHz with an accurate 14-bit resolution. Digital I/O on the board is PPI-compatible and can be programmed as inputs or outputs in banks of eight. It also has three onboard counters that can be used to generate interrupts. A digital trigger is also featured that can be used for starting measurements.
Software and hardware wise, the PC104PLUS is compatible with the company's PCI-730 which means users can develop on a desktop using the PCI board, and then change over to PC104PLUS for the embedded system. The driver for both boards is identical and connector pinouts the same.
PC/104PLUS has all the benefits of the embedded PC/104 standard but with the added feature of the high performance PCI bus. The physical size and mounting configuration remain unchanged with a second stack-through connector on the opposite side of the board. This 120-pin connector is similar to the standard PCI-bus, but with no JTAG, PRSNT or CLKRUN signals present. A rotational dipswitch on the side of the board allows the user to select PCI board position when more than one PC/104PLUS is used at a time.
The PC104PLUS-30C utilises software calibration for each individual channel and range. This means errors are automatically calculated out when using a different voltage input range. A software calibration application is provided with each board.
Typical applications for the board include analog input streaming, voltage measurements, voltage reference outputs, analog and digital data logging, digital I/O for control of relays, frequency counter for event logging, etc.
The free data acquisition package, WaveView for Windows is included, which allows the user to start sampling as soon as the card is plugged in. It also includes the EDRE software developer's kit which has support for most popular software development packages.