Rockwell Automation Publication 1715-UM001J-EN-P - December 2020
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Chapter 6 Configure the Redundant I/O System
11. Click the Fault/Program Action tab.
The Fault/Program Action tab appears.
IMPORTANT
Changing engineering scale values does not automatically adjust
the Alarms/Limits. It is your responsibility to verify/re-adjust the
alarm and limit values.
Table 38 - Fault/Program Action Parameters for Analog Output Duplex Module
Parameters
Description
Channel
Click the channel number to configure parameters for the specified channel (0…7).
Fault Mode
For a channel, choose the behavior of the output channel when a communication fault
occurs. Choose between Hold Last State and Use Fault Value. The default is Hold Last State.
Fault Value
Enter a fault value (between -9999999 and 99999999). The Fault Value must also be in the
range of Low Alarm <= Fault Value <= High Alarm. The default is 0.0.
Fault Value is enabled (excluding Hard Run mode) when the Fault mode is set to Use Fault
Value. Fault Value is dimmed (including Hard Run mode) when the Fault mode is set to Hold
Last State.
Ramp to Fault Value
Check the Ramp to Fault Value checkbox to transition the channel from the current value to
the fault value (when in Fault mode and limited by Ramp Rate). The default is cleared.
Ramp to Fault Value is enabled (excluding Hard Run mode) when the Fault mode is set to Use
Fault Value. Ramp to Fault Value is dimmed (including Hard Run mode) when the Fault mode
is set to Hold Last State.
Program Mode
For a channel, choose the behavior of the output channel when there is a transition to
Program mode. Choose between Hold Last State and Use Program Value. The default is Hold
Last State.
Program Value
Enter a program value (between -9999999…99999999). The Program Value must also be in
the range of Low Alarm <= Program Value <= High Alarm. The default is 0.0.
Program Value is enabled (excluding Hard Run mode) when the Program mode is set to Use
Program Value. Program Value is dimmed (including Hard Run mode) when the Program
mode is set to Hold Last State.