Emerson FB3000 RTU Instruction Manual
D301851X012
May 2022
I/O Configuration and Wiring
41
3.3.1
DI Wiring
Figure 3-4
shows how to wire the digital input.
In the figure, AIDIPI_6 is shown configured as a digital input. ISO_GND (pin 10) is the
ground connection for AIDIPI_6.
Figure 3-4: Digital Input (DI) Wiring (internal pull-up enabled)
3.4
Digital Outputs
The mixed I/O modules of the FB3000 RTU include two dedicated digital output
channels.
Notes
When using a digital output to drive an inductive load (such as a relay coil), place a
suppression diode across the load. This protects the DO from the reverse Electro-
Motive Force (EMF) spike generated when the inductive load is switched off (see
DO2 in
Figure 3-5
.)
Internally, the DO acts as a simple contact closure.
Содержание FB3000
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