Appendix A
Specifications
©
National Instruments Corporation
A-3
PCI-DIO-96/PXI-6508/PCI-6503 User Manual
Transfer Rates
Max with NI-DAQ software .................. 50 kbytes/s
Constant sustainable rate (typ) ............... 1 to 10 kbytes/s
Transfer rates are a function of the speed with which your program reads
data from or writes data to the board, and therefore vary with your system,
software, and application. The following primary factors control your DIO
board transfer rates:
•
Computer system performance
•
Programming environment (register-level programming or NI-DAQ)
•
Programming language and code efficiency
•
Execution mode (foreground or background, with background
execution typically using interrupts)
•
Other operations in progress
•
Application
For example, you can obtain higher transfer rates in a handshaking or
data-transfer application, requiring an average rate, than in a pattern
generation, data acquisition, or waveform generation application, requiring
a constant sustainable rate.
The maximum rate shown was obtained using a 233 MHz Pentium
computer running Traditional NI-DAQ (Legacy) and LabWindows/CVI
software, with interrupt-based execution, and with no other high-speed
operations in progress.
Bus Interface
Type ....................................................... Slave
Power Requirement
Power consumption................................ 400 mA at +5 VDC (
±
5%)
Power available at I/O connector ........... +4.65 to +5.25 V fused at 1 A