Options for Discrete Output Source
Important
This table assumes that Discrete Output Polarity is set to Active High. If Discrete Output Polarity is set to
Active Low, reverse the voltage values.
Important
Actual flow direction interacts with Sensor Flow Direction Arrow to determine the flow direction that the
transmitter uses in processing. See the following table.
Table 8-3: Interaction between actual flow direction and Sensor Flow Direction Arrow
Actual flow direction Setting of Sensor Flow Direction
Arrow
Flow direction sent to outputs and
totalizers
Forward (same direction as Flow arrow
on sensor)
With Arrow Forward
Against Arrow Reverse
Reverse (opposite from Flow arrow on
sensor)
With Arrow Reverse
Against Arrow Forward
8.4.2 Configure Discrete Output Polarity
Display
Menu > Configuration > Inputs/Outputs > Channel x > I/O Settings > Polarity
ProLink III Device Tools > Configuration > I/O > Outputs > Discrete Output > Polarity
Field Communicator Configure > Manual Setup > Inputs/Outputs > Channel x > Discrete Output x > DOx Polarity
A Discrete Output has two states: ON (active, asserted) and OFF (inactive). Two different voltages are used to
represent these states. Discrete Output Polarity controls which voltage represents which state.
Procedure
Set Discrete Output Polarity as desired.
• Default: Active High
8.4.3 Configure Discrete Output Fault Action
Display
Menu > Configuration > Inputs/Outputs > Channel x > I/O Settings > Fault Action
ProLink III Device Tools > Configuration > I/O > Outputs > Discrete Output > Fault Action
Field Communicator Configure > Manual Setup > Inputs/Outputs > Channel x > Discrete Output x > DO x Fault Action
Discrete Output Fault Action controls the behavior of a Discrete Output if the transmitter detects a fault
condition.
Important
• The fault action is implemented only if Alert Severity is set to Failure. If Alert Severity is set to any other
option, the fault action is not implemented.
Configuration and Use Manual Integrate the meter with the control system
MMI-20048166 April 2019
Configuration and Use Manual 107
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