Emerson FB2200 - Digital Inputs

Emerson FB2200 Flow Computer Instruction Manual
D301784X012
March 2019
70 I/O Configuration and Wiring
Figure 3-6. AO Wiring: Optional 8-channel Expansion I/O Module (ISO AI/AO 3,4,5,6) and Optional
6-channel Expansion I/O Module (ISO AI/AO7 & AI/AO8)
1
Field Device
3.3 Digital Inputs
Depending upon how you ordered it, the FB2200 flow computer includes two, six, or ten channels
you can individually configure as digital inputs (DI), digital outputs (DO), or pulse inputs (PI).
When configured as digital inputs, the channels have the following characteristics:
Table 3-3. Digital input Characteristics
Type
Number Supported
Characteristics
Digital
Input (AI)
0 to 8 as follows:
▪
1 or 2 non-isolated channels on CPU
module (DI/DO/PI1 and DI/DO/PI2).
Two are always present; you can
configure one, both, or neither as DIs.
▪
1 to 4 additional isolated channels on
optional 8-channel expansion I/O
module (ISO DI/DO/PI3 to ISO
DI/DO/PI6). If module is present you
can configure one, two, three, four, or
none of the channels as DIs.
▪
Circuit protection.
▪
30ms input filtering
▪
Maximum input frequency of 10 Hz
▪
Selectable current source of 66

A or 2
mA.
▪
Either externally driven or internally
driven and pulled to ground by dry
contact closures or open collector
devices