
Rockwell Automation Publication IASIMP-QS005H-EN-P - April 2016
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SmartGuard™ 600 Controllers Logic Integration
Chapter 4
5. Select the Channel Mode from the pull-down list based on table below.
6. Set the Dual Channel mode for the safety output from the pull-down list based on table below. Setting Dual
Channel mode enables an error to be detected if the two outputs from a user program are not equivalent. If an
error is detected in one of two outputs circuits, both outputs to the device become inactive.
7. Repeat Steps 1 through 5 to configure each output in your system.
Channel Mode
Description
Not Used
The output terminal is not connected to an output device.
Safety
A test pulse is not sent when the output is on. When the output is off, short-circuits with the power supply line (positive side) can be detected.
Ground faults can also be detected.
Safety Pulse Output
A test pulse is sent when the output is on. This enables detection of short circuits with the power supply line (positive side) whether the output is
on or off. Ground faults and short circuits between output signals can also be detected.
IMPORTANT
If a safety pulse output is set, an off pulse signal (pulse width 580 μs) is output to diagnose the output circuit when the
safety output turns ON. Check the input response time of the control device to make sure this output pulse will not cause
malfunctions.
Channel Mode
Description
Single Channel
The safety output terminal is used independently.
Dual Channel
The safety output terminal is paired with another output terminal. The output can be turned ON when both the output and the
paired safety output are consistent.
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