Advantech APAX-5013 User Manual page 95

Pulse/DIR, With Reload, Count Repetitively, DI Gate Enable, Low level, Not
Retriggerable
Figure 3.29 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, t will reset to the defined value (e.g. 0x33) but won't keep
counting. If the DI0 value is low level, the counter0 will start to count but cannot be
retriggered. Otherwise, the counter0 will stop counting.
Ch0_A
Down
Ch0_B
Counter 0
Enable
DI0
Counter 0
0x33 0x32
Value
Counter0
Overflow
Ch0_A
Ch0_B Up
Counter 0
Enable
DI0
Counter 0
0x33 0x34
Value
Counter0
Underflow
Figure 3.43 Pulse/DIR , With Reload , Count Repetitively, DI Gate Enable, Low
Up
.........
0x33 0xF..F 0x33
Down
.........
0x33 0x00 0x33
level, Not Retriggerable
87
0x34 0x35 0x36
0x32 0x31 0x30
APAX-5000 I/O Series User Manual