NI cDAQ-9172 User Guide and Specifications 70 ni.com
AO waveform modes..............................Non-periodic waveform,
periodic waveform regeneration
mode from onboard memory,
periodic waveform regeneration
from host buffer including
dynamic update
Digital Waveform Characteristics (Slots 1 through 4 Only)1
Waveform acquisition (DI)
FIFO........................................................2,047 samples
Waveform generation (DO)
FIFO........................................................2,047 samples
Digital input sample clock frequency
Streaming from application
memory............................................0 to 8 MHz, system dependent
Regenerate from FIFO.....................0 to 10 MHz
Finite................................................0 to 10 MHz
Digital output sample clock frequency
Streaming from application
memory............................................0 to 8 MHz, system dependent
Regenerate from FIFO.....................0 to 10 MHz
Finite................................................0 to 10 MHz
Digital output or digital input
sample clock source................................Any PFI, analog sample or
convert clock, analog output
sample clock, Ctr n Internal
Output, and many other sources
PFI Characteristics (Slots 5 and 6 Only)1
Functionality...........................................Static digital input, static digital
output, timing input, and timing
output
Timing output sources............................Many analog input, analog
output, counter, digital input, and
digital output timing signals
1 Requires correlated digital I/O modules installed on the appropriate slot(s).