Instant Digital Input Acquisition; Buffered Digital Input Acquisition - Advantech iDAQ-934 User Manual

Hide thumbs Also See for iDAQ-934:

Table of Contents

3.5.2

Instant Digital Input Acquisition

With instant digital input acquisition, the software controls the sample timing. Each

time the software sends a "read instant digital input sample" command, the state of all

digital input channels is sampled as shown in Figure 3.26.

3.5.3

With buffered digital input acquisition, the sample rate and the duration of the acquisi-

tion is controlled by hardware timing signals. All samples are stored in the buffer

memory before sending back to the host computer as shown in Figure 3.27.

iDAQ-934_964 User Manual

Figure 3.26 Instant digital input acquisition

Figure 3.27 Buffered digital input acquisition

Table of Contents