Advantech ADAM-5000 - Manual (Page 48)

Chapter 4
4-25
ADAM-5080 Counter/Frequency Mode Selection
Users can select Bi-direction, Up/Down Counter or Frequency option as
shown in Figure 44.
Figure 4-29: Counter / Frequency Mode
Note: All four channels of ADAM-5080 will operate simultaneously
in the mode you have selected. i.e. If you switch the ADAM-
5080 to Counter Mode, all four channels will operate in Counter
Mode.
Features -- Counter Mode
Up/Down Counting
The Up/Down Counter Function offers two types of counting:
Up Couting (increasingly) and Down Counting (decreasingly).
Up Counting : when C0A+ and C0A- sense any input signals, the
counter counts up.
Down Counting : when C0B+ and C0B- sense any input signals, the
counter counts down. On receiving Up and Down signal
simultaneously, the counter will not perform each specific counting
accordingly, but will remain at the previous counting value, since
these simultaneous signals won't have any effect on counting
values.