Series:Control System

  Product Description

  The FBM202 thermocouple/mV input includes eight thermocouple input channels and one isolated RTD reference junction compensation channel(for terminal temperature sensing).Each thermocouple/mV channel accepts various standard thermocouple temperature ranges,and each provides thermocouple burnout detection(amplification).This input is isolated and grounded from other channel currents.

  The module performs the required signal conversion by connecting the electrical input signal sensor from the field to the optional redundant fieldbus.It performs analog input applications and provides configurable options for integrating time and rate of change limitations.

  Two types of passive terminal components

  feature

  Compact design

  High precision

  Wide temperature range

  Easy to install

  The FBM02 FOXBORO thermocouple input module is a compact and accurate device used for temperature monitoring and control in industrial processes.This module is designed to receive signals from various thermocouple types and convert them into digital signals for DCS processing.

  Can be used for FBM202:

  DIN rail installation TA,similar to installing TA on other 200 series FBM substrates,is directly installed on the field I/O connectors of the 200 series.These TAs provide on-site I/O wiring to support two FBM202s in paired slots(i.e.,positions 1 and 2,3 and 4,5 and 6,or 7 and 8).When connected to the appropriate TA,the FBM202 module previously provided functionality provided by the 100 series FBM I/O subsystem.TA can be used to support the 100 series FBM02.

  The main functions of FBM202 are:

  Eight channels for thermocouple signal input

  An isolated RTD reference contact compensation channel(for terminal temperature sensing)

  Each input channel is current isolated

  Rugged and durable design suitable for G3 grade housing(harsh)environments

  Provide conversion time and configurable change rate limit options for simulating the execution of input applications

  Realize high-precision conversion of each channel using Sigma Delta data

  Local or remote connection of field wiring to FBM202

  High precision

  In order to achieve high accuracy,this module combines SigmaDelta data conversion on each channel to provide new analog input readings every 25ms,as well as configurable integration cycles to remove processing noise and power line frequency.

  For each time period,FBM converts each analog input to a digital value,averages these values over the time period,and provides the average value to the controller.

  Standard design

  FBM202 has a sturdy extruded aluminum casing for physical protection of circuits.The casing is designed specifically for installing FBM with various levels of environmental protection,up to ISA standard S71.04.

  Visual indicator

  Red and green light emitting diodes(LEDs)are integrated at the front of the module to provide visual status indication of FBM operation

  status

  Easy to disassemble/replace without the need to remove on-site equipment termination cables,power supplies,or communication wiring.

  Fieldbus communication

  The fieldbus communication module or controller redundant 2 Mbps processor interface FBM uses as a module fieldbus.The FBM accepts communication from the path(A or B)at 2 Mbps fieldbus-if a path fails or switches at the system level,the module continues to communicate through the active path.

  Modular base plate installation

  The module is installed on a DIN rail base plate and can accommodate up to four or eight fieldbus modules.Modular backplanes are DIN rail or rack mounted,including redundant fieldbus signal connectors,redundant independent DC power supplies,and termination cables.

  Termination components

  The on-site I/O signal passes through a:

  Install TA on DIN rail or base plate.The TA used by FBM202 is listed in"Functional Specification-Termination of Assembly".

  application area

  The FBM02 FOXBORO thermocouple input module is used for various industrial applications,including chemical processing,petroleum and natural gas refining,and power generation.