Section 3: I/O Configuration And Wiring; Pulse Inputs - Emerson FB2100 Instruction Manual

Section 3: I/O Configuration and Wiring

This section covers the following topics:
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I/O in the FB2100 flow computer comes from the integrated multivariable sensor and RTD
connector, and the CPU board. Option 1 for the CPU is a single digital output; option 2 for the CPU
is two channels individually configurable as either digital inputs (DI), digital outputs (DO) or pulse
inputs (PI) and two channels individually configurable as either analog inputs (AI) or analog outputs
(AO).
Note
Terminal blocks TB3 and TB4 are unused on the FB2100.
Note
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.
I/O Configuration and Wiring
Analog Inputs
Analog Outputs
Digital Inputs
Digital Outputs

Pulse Inputs

Connecting the RTD/PRT
Wiring a Digital Output to the Optional Relay
Radio Wiring
Emerson FB2100 Flow Computer Instruction Manual
D301783X012
March 2019
59