Di Wiring; Digital Outputs; 3-3. Digital Input Characteristics - Emerson FB2100 Instruction Manual

FB2100 Flow Computer Instruction Manual
D301783X012
November 2023
Table
Type
Digital Input
(DI)
3.3.1

DI Wiring

The diagram below shows how to wire the digital input.
Figure 3-4.
1
3.4

Digital Outputs

The FB2100 flow computer with I/O option 1 includes a single digital output. The FB2100
flow computer with I/O option 2 includes two channels you can configure as digital
outputs (DO), digital inputs (DI) or pulse inputs (PI).
70

3-3. Digital input Characteristics

Number Supported
0 to 2 as follows under I/O
option 2 only:
1 or 2 non-isolated channels

on CPU board (DI/DO/PI1 and
DI/DO/PI2). Two always
present; you can configure
one, both, or neither as DIs.
Digital Input (DI) Wiring [DI/DO/PI1 & DI/DO/PI2] – (I/O Option 2)
Dry contact
Characteristics
 Circuit protection
 30ms input filtering
 Maximum input frequency of
10 Hz
 Selectable current source of 66
µA or 2 mA
 Either externally driven or
internally driven and pulled to
ground by dry contact
closures or open collector
devices
 When a channel is configured
as a DI it cannot be used as a
DO or PI channel
I/O Configuration and Wiring