Foxboro FBM205 0 to 20 mA I/O Interface Module (Redundant)

Foxboro FBM205 0 to 20 mA I/O Interface Module (Redundant)

Description

The FBM205, 0 to 20 mA I/O Interface (Redundant) contains four redundant 0 to 20 mA DC analog input channels and four redundant 0 to 20 mA DC analog output channels. The inputs/outputs are galvanically isolated from other channels and ground.

A redundant pair of the modules combine to provide redundancy at the Fieldbus Module (FBM) level, with field I/O wired to one common termination assembly. Each module independently attempts to hold the output(s) at its specified output value(s), and each independently reports its observed value of the inputs.

A redundant analog input and redundant analog output block in the control software validates each input and output in conjunction with information to/from the module.

The FBM205 is electrically compatible with standard HARTsignals.

Features

• 4 redundant 20 mA DC analog input channels
• 4 redundant 20 mA DC analog output channels
• Each input and output channel is galvanically isolated
• Rugged design suitable for enclosure in Class G3 (harsh) environments
• Execution of an analog input application program that provides conversion time and configurable options for Rate of Change Limits
• Configurable options in the modules for output security include Fail-Safe Action
• High accuracy achieved by sigma-delta data conversions for each channel
• Termination Assemblies (TAs) for locally or remotely connecting field wiring to the FBM205
• Redundant loop power on FBM powered transmitters
• 3-tier termination assembly for per channel internally and/or externally loop powered transmitters

Technical Specifications