16 |
3.4.
Counting edge
Counting edge means that every DI channel can count the edges on the DI input port, each
DI channel has a 32-bit counter, and each channel can independently set whether to count
the rising edge or the falling edge.
The schematic diagram of rising edge counting principle is shown in Figure 3.4.
Figure 3.4 The schematic diagram of rising edge counting principle
Attention
Counting edge function is to make counting edge for the collected
results after digital input sensitivity filtering.
3.5.
Interrupt
All DI input channels of PCI-1132 can be set as bit interrupt sources, and can also be set
as high-level interrupt or low-level interrupt at will.
Through the dll and functions provided by us, users can implement custom interrupt
service functions. Please refer to the corresponding routine for detailed usage methods.
Counting edge
20ms
20ms
0
1
Acquisition result
Actual input
