Rockwell Automation 1771-QB Linear Pos. User Manual

Page 138

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Advanced Features

Chapter 9

9-7

Bit 7 - Normal/Complement OUTPUT 2

If OUTPUT 2 is configured to be programmable, this bit defines whether
OUTPUT 2 is normal (active high) or complement (active low). See the
description for bit 3 of this word.

Bit 8 - Outputs Reset/Fault State

This bit indicates whether OUTPUT 1 and OUTPUT 2 (when configured
as programmable outputs) remain in their last state or are reset when:

a software reset command is sent to the module

the module has faulted

the programmable controller has faulted

the programmable controller is placed in programming mode

Module faults include loss of analog power, analog interface fault, memory
fault, discrete input fault, transducer interface fault, excess following error,
excess PID error, loss of feedback, hardware stop input or an immediate
stop command.

Bit 9 - OUTPUT 1

You set this bit to 1 to indicate that OUTPUT 1 is programmable. If you
clear this bit, OUTPUT 1 defaults to an in-position output.

Bit 10 - OUTPUT 2

You set this bit to 1 to indicate that OUTPUT 2 is programmable. If you
clear this bit, OUTPUT 2 defaults to a loop fault output.

Bits 12, 13 - INPUT 1 Trigger

With these bits you can set the level/edge trigger sensitivity for INPUT 1 to
high level, low level, positive edge or negative edge.

Bits 14, 15 - INPUT 2 Trigger

With these bits you can set the level/edge trigger sensitivity for INPUT 2 to
high level, low level, positive edge or negative edge.

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