User Guide

© National Instruments Corporation 41 NI cDAQ-9172 User Guide and Specifications
Figure 15. NI cDAQ-9172 Counters
Counters have seven input signals, although in most applications only a few
inputs are used.
For information about connecting the counter signals, refer to the Default
Counter/Timer Routing section. The following sections describe various
counter applications.
Counter 0
Counter 0 Source (Counter 0 Timebase)
Counter 0 Aux
Counter 0 HW Arm
Counter 0 A
Counter 0 B (Counter 0 Up_Down)
Counter 0 Z
Counter 0 Gate
Counter 0 Internal Output
Counter 0 TC
Input Selection Muxes
Frequency Generator
Frequency Output Timebase Freq Out
Input Selection Muxes
Counter 1
Counter 1 Source (Counter 1 Timebase)
Counter 1 Aux
Counter 1 HW Arm
Counter 1 A
Counter 1 B (Counter 1 Up_Down)
Counter 1 Z
Counter 1 Gate
Counter 1 Internal Output
Counter 1 TC
Input Selection Muxes