Advantech APAX-5013 User Manual page 88

Pulse/DIR, With Reload, Count Once, DI Gate Disable
Figure 3.22 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 show the minimum (0x00) or maximum (0xFFFFFFFF)
value and not count continuously. Whatever the DI value is, the counter still continu-
ously counts.
Ch0_A
Ch0_B
Counter0
Enable
DI0
Counter 0
Value
Counter0
Underflow
Ch0_A
Ch0_B
Counter0
Enable
DI0
Counter 0
Value
Counter0
Overflow
Figure 3.36 Pulse/DIR, With Reload, Count Once, DI Gate Disable
APAX-5000 I/O Series User Manual
Up
0x33 0x34 0x35 0x34
Down
0x33 0x32 0x31 0x32
Down
.........
0x33 0x32 0x00
Up
.........
0x33 0x34 0xF..F
80
0x33
0x33