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User-Configurable Diagnostics

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    Last Modified: September 6, 2017

    User-configurable diagnostics allow your User Program to monitor and detect various faults related to your sensors, cabling, and final elements. User-configurable diagnostics populate the Fault section of the I/O Configuration table in the Functional Safety Editor based on the channel configuration you select. Refer to the following table for the fault options that populate for a selected configuration.

    Table 1. Fault Configuration
    Signal Type Configuration Fault Options
    Digital Inputs Single input No fault options
    Single input with test pulse Overcurrent fault, test pulse fault
    Dual input Discrepancy fault
    Dual input with test pulse Discrepancy fault, overcurrent fault, test pulse fault
    Digital Outputs Single output Readback fault, overcurrent fault, open circuit fault
    Single output with external readback Readback fault, overcurrent fault, open circuit fault
    Single output with internal test pulse Overcurrent fault, open circuit fault, test pulse fault
    Single output with external test pulse Overcurrent fault, open circuit fault, test pulse fault
    Dual output Readback fault, overcurrent fault, open circuit fault
    Dual output with internal test pulse Overcurrent fault, open circuit fault, test pulse fault
    Dual output with external test pulse Overcurrent fault, open circuit fault, test pulse fault

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