Rockwell-automation 1771-QB Linear Pos. Bedienungsanleitung PDF herunterladen (Seite 137)

Advanced Features

Chapter 9

9-6

low for the specified duration when triggered to pulse

When an output changes to a high or low state, it is guaranteed to stay in

that state for a minimum of 16 milliseconds in order to be compatible with

the discrete inputs. Thus if two successive changes to an output are

initiated within 16 milliseconds of each other, the second change will be

delayed until the 16 millisecond interval has expired. If the second change

is a pulse, the duration of that pulse will also be shortened by the length of

the additional delay.

Figure 9.4

Programmable

I/O Control W

ord

50089

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Programmable

OUTPUT 1 pulse

duration:

INPUT 2 trigger:

00 = High level

01 = Low level

10 = Positive edge

11 = Negative edge

Normal/complement

(0/1) programmable

OUTPUT 1

Programmable

OUTPUT 2 pulse

duration:

Normal/complement

(0/1) programmable

OUTPUT 2

Programmable outputs

reset/fault state:

0 = Last state

1 = Reset

INPUT 1 trigger:

00 = High level

01 = Low level

10 = Positive edge

11 = Negative edge

OUTPUT 2:

0 = Loop Fault

1 = Programmable

OUTPUT 1:

0 = Inposition

1 = Programmable

00 20 ms

01 50 ms

10 100 ms

11 200 ms

Bits 4 and 5 - OUTPUT 2 Pulse Duration

If OUTPUT 2 is configured to be programmable and motion segment

control word 2 specifies that OUTPUT 2 is pulsed when trigger conditions

are satisfied, these bits define the duration of the pulse to be 20, 50, 100 or

200 milliseconds.

1 2 ... 132 133 134 135 136 137 138 139 140 141 142 ... 225 226

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