Options for Discrete Input Polarity
Polarity
Discrete Input
power supply
Voltage
Status of Discrete
Input at transmitter
Active High
Internal
Voltage across terminals is high
ON
Voltage across terminals is 0 VDC
OFF
External
Voltage applied across terminals is
3–30 VDC
ON
Voltage applied across terminals is
<0.8 VDC
OFF
Active Low
Internal
Voltage across terminals is 0 VDC
ON
Voltage across terminals is high
OFF
External
Voltage applied across terminals is
<0.8 VDC
ON
Voltage applied across terminals is
3–30 VDC
OFF
Integrate the meter with the control system
Configuration and Use Manual
March 2019
MMI-20025166
164
Micro Motion Model 5700 Transmitters with Configurable Outputs