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Emerson FB3000 RTU 8-Channel Output Module Field Installation Guide
Digital Outputs (3AODO8/3OTSG8/OUT08)
When a channel on the 8-channel output module is configured as a digital output, it has the
following characteristics:
Internally, the DO acts as a simple contact closure. When 1 (ON) the contact closes, when
0 (OFF) the contact opens. A simple contact closure conducts current in either direction.
There is no polarity associated with DO terminals.
When configured as a DO, the DOLO terminal of each DO channel has no connection to
ground. Each DOLO terminal simply connects only to its corresponding DOHI terminal
when the DO is ON, and disconnects from all terminals when the DO is OFF. If common
grounding among DO channels is required, you must configure it externally to the
personality module.
Digital Output Characteristics
Number
Type
Supported
Digital Output
0 to 8 channels
(DO)
CAUTION
Guard against overcurrent on the DO channel to avoid damage to the module.
Characteristics
Contact closure by solid state relay
Maximum current of 500mA at 31VDC
Can be configured to fail at last output value or fail
to a fault state.
D301917X012
October 2022
7
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