FOXBORO FBM227 P0927AC

Description

Some plant applications require fast control execution for either analog or discrete
control. The FBM227 supports local execution of the Advanced PID algorithm or,
separately, a tri-state discrete (e.g. raise/off/lower) output algorithm.
The FBM227 module provides signal conversion required to interface analog and
digital electrical input/output signals from field sensors/actuators. It has four 0 to 10 V
dc analog input channels and two 0 to 10 V dc analog output channels, all of which
are individually isolated. For the digital I/O signals (on/off state), it has four digital input
channels, isolated in two groups of two channels each, and four digital, pair isolated,
output channels.
It executes either the Analog I/O or Digital I/O application program, and has support
for MDACTor DPIDA control.
The configurable options for each analog program are Input Resolution, Fail-safe
Configuration (Hold/Fallback) and Output Fail-safe Fallback Data. The configurable
options for each digital program are Input Filter Time, Fail-safe Configuration, Failsafe Fall Back and Sustained or Momentary Outputs.
If the Momentary Output configuration is selected, then Pulse Output Interval is also
configurable.
Configurable options for inputs are exercised on a per module basis; those for outputs
are exercised on a per channel basis.
Features
• Four 0-10 V analog input channels, used for either dc voltage measuring, or
slidewire (position) sensing
• Two 0-10 V analog output channels, used for driving positioners, controllers or
remote indicators
• Four 130 V dc digital input channels, used for either contact sensing, or dc
voltage monitoring
• Four digital output channels, used for either 60 V dc output switching with an
external source (e.g. to control powering of various external loads), or a 3-wire dc
output switching with an internal 11 V dc source (e.g. to power external solid state
relays or other similar devices)
• Support for DPIDA and MDACTcontrol blocks
• Each pair of analog input or output channels is individually isolated from other
channels and ground. Its digital channels have paired isolation from all other
channels and ground
• Rugged design suitable for enclosure in Class G3 (harsh) environments