Advantech manual Counter Modes, PCM-3780 Counter Mode

Counter Modes

Table 1.1: PCM-3780 Counter Mode

Counter Mode

A

B

C

D

E

F

G

H

I

J

K

L

Special Gate (CM6)

0

0

0

0

0

0

0

0

0

0

0

0

Reload Source (CM5)

0

0

0

0

0

0

1

1

1

1

1

1

Repetition (CM4)

0

0

0

1

1

1

0

0

0

1

1

1

Gate Control

N

L

E

N

L

E

N

L

E

N

L

E

(CM15~CM12)

Count to TC once, then

Y

Y

Y

disarm

Count to TC twice, then

Y

Y

Y

disarm

Count to TC repeatedly

Y

Y

Y

Y

Y

Y

without disarming

Gate input dose not gate

Y

Y

Y

Y

counter input

Count only during active

Y

Y

Y

Y

gate level

Start count on active gate

Y

Y

edge and stop count on

next TC

Start count on active gate

Y

Y

edge and stop count on

second TC

Start count on active gate

edge and stop count on

inactive gate edge

Reload counter from Load

Y

Y

Y

Y

Y

Y

Register on TC

Reload counter on each

Y

Y

Y

Y

Y

Y

TC, alternating reload

source between Load and

Hold Registers

(N: No gate control, L: Level gate control, E: Edge gate control)

3 Chapter1