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The CIO-DAS6402 multifunction analog and digital I/O boards set the new standard for high channel count, high speed data acquisition. Installed in any ISA-bus compatible personal computer, the CIO-DAS6402 turns your personal computer into a high speed data acquisition and control station suitable for laboratory data collection, instrumentation, production test, or industrial monitoring.
FIFO Provides Full Data Rate Under Windows
The on-board 1024 sample FIFO buffer collects the results of A/D conversions and stores them until the computer╒s CPU is able to transfer the data into PC memory. The FIFO buffer allows the PC to store up the A/D transfer requests, then service the requests in batches. The FIFO is necessary to obtain the full data acquisition rates under multitasking operating systems like Windows.
Connector
All I/O signals are brought through a 100-pin high-density connector. Field wiring is greatly simplified by using the optional
C100-FF2 cable and
CIO-TERM100 screw terminal board. The pinout of the
CIO-DAS6402 is shown at right.
Models with 12 and 16 Bit Resolution
The CIO-DAS6402-16 provides
16 bits of analog input and analog output resolution (1 part in 65,536) while the CIO-DAS6402-12 provides 12-bit resolution (1 part in 4096) for its analog inputs and outputs.
The only difference between the
12-and-16 bit A/D control registers is the A/D least significant byte data register. Shown below are the A/D data registers for the CIO-DAS-6402-12 and CIO-DAS-6402-16. The 16-bit board simply has useful data in the 4 least significant bits (instead of 0). This is also the format difference when writing to the D/A registers.
Minimizing Channel to Channel Skew
All of the channels on the
CIO-DAS6402 are multiplexed into a single A/D converter. Since there is only one A/D converter on the board, a channel to channel time skew (delay) occurs when scanning multiple channels. With many A/D boards, the time skew is equal to the sample rate, so a 1 KHz sample rate would produce a 1 millisecond skew time. The CIO-DAS6402 features an enhanced triggering mode called the burst mode. In the burst mode the A/D converter is run at its maximum rate for the entire multi-channel scan, thus reducing the channel to channel skew time to the maximum A/D rate which is 4 ╡S for the 12-bit board and 10╡S for the 16-bit board.
Software
The CIO-DAS6402 includes a complete test and calibration program. The program provides a step-by-step procedure for installing and configuring the card. It also creates a configuration file used by the optional Universal Library.
The Universal Library is a set of I/O libraries and drivers for those users creating their own custom programs. The Universal Library is compatible with most DOS and Windows based languages and supports the entire CIO family of boards. The Library includes an extensive set of programming examples written in Visual Basic, C and Pascal for both Windows and DOS languages.
An optional driver for LabView is also available. The LabView driver works in conjunction with the Universal Library, so both are needed to use the CIO-DAS6400 in LabView.
The CIO-DAS6400 is also compatible with many off-the-shelf programs including Labtech, DASYLab and SnapMaster.
Copy (to your hard drive) Instacal setup software for DOS and Windows 3.1 now!
Copy (to your hard drive) Instacal setup software (32-bit) now!
View an Adobe Acrobat pdf file for
more product info (requires Acrobat Reader).
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