FOXBORO FBM227 I/O Module

FOXBORO FBM227 I/O Module

DESCRIPTION

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.

FEATURES

Key features of the FBM227 module are:

 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 MDACT control blocks 

 Each pair of analog input or output channels is individually isolated from other channels and earth (ground). Its digital channels have paired isolation from all other channels and earth (ground) 

 Rugged design suitable for enclosure in Class G3 (harsh) environments.

STANDARD DESIGN

The FBM227 module has a rugged extruded aluminum exterior for physical protection of the circuits. Enclosures specially designed for mounting the FBMs provide various levels of environmental protection, up to harsh environments per ISA Standard S71.04.

EASY REMOVAL/REPLACEMENT

The modules can be removed/replaced without removing field device termination cabling, power or communications cabling.

VISUAL INDICATORS

Light-emitting diodes (LEDs) incorporated into the front of the modules provide visual status indications of Fieldbus Module (FBM) functions.

MODULAR BASEPLATE MOUNTING

The modules mount on a modular baseplate or conversion mounting structure which accommodates up to four or eight FBMs. The modular baseplate is either DIN rail mounted or rack mounted, and includes signal connectors for redundant fieldbus, redundant independent DC power, and termination cables.

FIELDBUS COMMUNICATION

A Fieldbus Communication Module or a Control Processor communications with the FBM227 over the redundant 2 Mbps module Fieldbus used by the FBMs. The FBM227 module accepts communication from either path (A or B) of the redundant 2 Mbps fieldbus – should one path fail or be switched off at the system level, the module continues communication over the active path.

Power Requirements

INPUT VOLTAGE RANGE (REDUNDANT)：24 V DC +5%, -10%

CONSUMPTION：7 W (maximum)

HEAT DISSIPATION：3 W (maximum)

APPLICATIONS

• Simulation 

• Instrumentation 

• Industrial control 

• Process control and monitoring 

• Factory automation 

• Intelligent networked PLC controllers 

• Automated test 

• Data acquisition