Rockwell-automation 57C421B Pulsetach Input Module/DCS 5000/AutoMax Manual de usuario descargar pdf (Pagina 33)

4Ć11

0123456798101112131415

RegisĆ

ter 6

Bits

rw rw rw rw rw rw rw rw rw rw rw

External

latch

enable

External

count stop

enable

Count

reverse

Count forward

Type of pulsetach: 0 = quadrature

1 = single input

Inhibit counter

Clear/origin select

Z pulse polarity: 0 = positive logic

1 = negative logic

Count stop input select: 0 = high input

1 = low input

Origin/clear input select: 0 = high input

1 = low input

External latch input select: 0 = high input

1 = low input

Reset counter

Figure 4.10 Ć Mode Definition Register (Register 6)

4.2.6 Module Status Register (Register 7)

Refer to figure 4.11.

Bit: 0

Description: Carry Status

This bit is set whenever a carry occurs from bit 7 of register 0

(i.e., the value of the counter has rolled over to zero in the positive

direction). This bit is reset by writing a zero to register 7, bit 10.

Bit: 1

Description: Borrow Status

This bit is set whenever a borrow occurs from bit 7 of register 0

(i.e., the value of the counter has rolled over to zero in the negative

direction). This bit is reset by writing a zero to register 7, bit 11.

Bit: 2

Description: Counter Greater Than Comparator

Bit 2 is set whenever the counter value (registers 0 and 1) is greater

than the comparator value (registers 3 and 4).

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 69 70

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Rockwell-automation 57C421B Pulsetach Input Module/DCS 5000/AutoMax Manual de usuario Pagina 33

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