Advantech APAX-5013 User Manual page 105

Pulse/DIR, With Reload, Count Repetitively, DI Gate Enable, Falling Edge,
Retriggerable
Figure 3.38 shows pulse/direction mode, Ch0_A provides the counting function, one
pulse, one count. Ch0_B provides the clockwise and counter clockwise function.
When the counter0 is enabled, the couner0 starts to count. If the counter value is
overflow or underflow, it will reset to the defined value (e.g. 0x33) and keep counting
repetitively. If the DI0 status is falling edge, the counter0 will starts to count and can
be retriggered. Otherwise, the counter0 will stop counting.
Ch0_A
Ch0_B Up
Counter0
Enable
DI0
Counter 0
0x33 0x34
Value
Counter0
Underflow
Ch0_A
Ch0_B Down
Counter0
Enable
DI0
Counter 0
0x33 0x32
Value
Counter0
Overflow
Figure 3.53 Pulse/DIR, With Reload, Count Repetitively, DI Gate Enable, Falling
Down
......
0x33 0x32 0x00
Up
......
0x33 0x34 0xF..F
Edge, Retriggerable
97 APAX-5000 I/O Series User Manual
0x33 0x32 0x31 0x30
0x33 0x34 0x35 0x36