Description

Product Overview

The FOXBORO FBM237 RH914XS is a high-performance safety input/output(I/O)module developed by FOXBORO(a Schneider Electric brand),specifically engineered for integration with the FOXBORO I/A Series distributed control system(DCS).Designed to meet the rigorous demands of industrial process control and safety instrumented systems(SIS),this module serves as a critical interface between field devices(sensors,valves,switches)and the DCS,enabling real-time monitoring and control of critical process variables in industries such as oil&gas,chemicals,power generation,and pharmaceuticals.

At its core,the FOXBORO FBM237 RH914XS offers versatile multi-signal processing capabilities,supporting both digital(24V DC)and analog(4-20mA)I/O signals.This versatility allows it to seamlessly connect to a wide range of field devices:digital inputs for emergency stop buttons,safety gate switches,and limit switches;digital outputs for driving control valves,alarms,and pump relays;and analog inputs for pressure,temperature,and flow transmitters.What distinguishes this module is its SIL 2 certification(per IEC 61508)and robust redundant design,ensuring it can operate reliably in safety-critical applications where process downtime or failure could lead to equipment damage,environmental harm,or operational disruptions.

For instance,in an offshore oil platform’s production system,the FOXBORO FBM237 RH914XS monitors 8 pressure transmitters(analog inputs)on a crude oil pipeline and controls 4 emergency shutdown valves(digital outputs).If pipeline pressure exceeds the safe threshold(e.g.,10,000 psi),the module triggers valve closure within 30ms,preventing pipeline rupture and potential oil spills.Its redundant hardware architecture also ensures that if a single component fails,a backup takes over immediately—eliminating gaps in safety monitoring and control.

Compared to standard I/O modules,the FOXBORO FBM237 RH914XS incorporates advanced diagnostic features,such as channel-level fault detection,signal drift monitoring,and short-circuit protection.These diagnostics provide early warning of potential issues(e.g.,a failing temperature sensor or damaged wiring),allowing maintenance teams to address problems proactively before they escalate into critical failures.This predictive maintenance capability reduces unplanned downtime by up to 30%in continuous process industries like refineries.

Technical Specifications

Parameter Name

Parameter Value

Product Model

FOXBORO FBM237 RH914XS

Manufacturer

FOXBORO(Schneider Electric Brand)

Product Type

Safety Input/Output(I/O)Module for DCS/SIS

Compatible DCS

FOXBORO I/A Series DCS(Version 9.0 and higher)

Safety Certification

IEC 61508 SIL 2;EN ISO 13849-1 PL d

I/O Configuration

-8 Analog Inputs(AI):4-20mA DC(2-wire/4-wire transmitters)-8 Digital Inputs(DI):24V DC(sinking/sourcing)-4 Digital Outputs(DO):24V DC(2A per channel)

Input Accuracy

-Analog(4-20mA):±0.05%of full scale-Digital:±0.5V(threshold for 24V DC)

Response Time

-Analog Input:≤10ms-Digital Input:≤5ms-Digital Output:≤15ms(from input trigger to output action)

Operating Temperature

-40℃to+70℃(operation);-40℃to+85℃(storage)

Hazardous Area Certifications

ATEX Zone 2(II 3G Ex nA IIC T4 Ga);IECEx Zone 2(Ex nA IIC T4 Ga);Class I,Division 2(UL 1203)

Power Supply

Redundant 24V DC±10%(21.6V–26.4V);Power Consumption:≤12W

Physical Dimensions

140mm(L)×100mm(W)×200mm(H);Rack-Mountable(3U Form Factor for I/A Series Cabinets)

Weight

1.1kg(2.43 lbs)

Redundancy

Support for 1oo2(1-out-of-2)safety loop architecture;Hot-swappable(no DCS shutdown required)

Communication

Backplane:FOXBORO Common Cabinet Bus(CCB)–100Mbps;Supports FOXBORO Ethernet I/P for remote monitoring

Diagnostics

Channel-level short-circuit protection,overvoltage protection,analog signal drift monitoring,communication fault detection,power supply health checks

Ingress Protection

IP20(suitable for control cabinet installation)

EMI/RFI Immunity

IEC 61000-4-2(ESD±8kV contact);IEC 61000-4-3(Radiated Immunity±10V/m);IEC 61000-4-4(EFT±2kV)

Main Features and Advantages

SIL 2 Certification for Safety-Critical Applications:The FOXBORO FBM237 RH914XS is fully certified to IEC 61508 SIL 2,making it suitable for safety loops where the probability of failure on demand(PFD)must be≤10⁻².This certification is validated through rigorous testing,including extreme temperature cycling,vibration testing,and fault injection simulations—ensuring the module can withstand the harsh conditions of industrial environments while maintaining safety integrity.For example,a nuclear power plant’s auxiliary feedwater system uses the FBM237 RH914XS in a 1oo2 configuration to monitor water level(analog inputs)and control feed pumps(digital outputs).The SIL 2 rating ensures compliance with regulatory standards(e.g.,NRC guidelines)and provides a 99.9%probability of correctly responding to low-water events,preventing core overheating.

Multi-Signal Versatility for Flexible Integration:Unlike single-function I/O modules,the FBM237 RH914XS combines analog and digital I/O in a single unit—supporting 8 analog inputs(4-20mA),8 digital inputs(24V DC),and 4 digital outputs(24V DC).This versatility eliminates the need for multiple specialized modules,reducing control cabinet space by up to 40%and simplifying wiring.A chemical plant using the module in its reactor safety system replaced 3 separate modules(1 analog,2 digital)with a single FBM237 RH914XS,cutting installation time by 25%and reducing long-term maintenance costs.The analog inputs also support both 2-wire and 4-wire transmitters,making it compatible with legacy and modern field devices—avoiding the need for costly transmitter upgrades.

Redundant Design&Hot-Swappability for Uninterrupted Operation:The module features a redundant hardware architecture,including dual power inputs and redundant communication paths to the I/A Series DCS.If one power supply fails or a communication link is disrupted,the backup system takes over seamlessly,ensuring no interruption to safety loop functionality.Additionally,the FBM237 RH914XS is hot-swappable—technicians can replace a faulty module without shutting down the DCS or safety system.A refinery in Texas leveraged this feature when an analog input channel failed:the redundant channel immediately assumed control,and the faulty module was replaced in 20 minutes—avoiding a 3-hour shutdown that would have cost$400,000 in lost production.

Advanced Diagnostics for Predictive Maintenance:The FBM237 RH914XS incorporates sophisticated diagnostic capabilities to monitor module health and detect potential issues early.For analog inputs,it tracks signal drift(e.g.,a pressure transmitter’s output gradually shifting from 12mA to 13mA for the same pressure),alerting operators to sensor degradation before it affects process control.For digital channels,it detects short circuits,open circuits,and overcurrent conditions—isolating faulty channels to prevent cascading failures.A pharmaceutical manufacturer used these diagnostics to identify a failing temperature sensor in its batch reactor system:the module detected a 0.3%drift in the sensor’s output,and the sensor was replaced during a scheduled maintenance window—avoiding a batch rejection(costing$120,000)due to inaccurate temperature monitoring.

Application Field

The FOXBORO FBM237 RH914XS is widely deployed in industries where reliable process control and safety are paramount—with key applications in oil&gas,chemicals,power generation,and pharmaceuticals.In oil&gas production(onshore and offshore),the module is used in emergency shutdown systems(ESD)for wellheads,pipelines,and processing facilities:an offshore platform in the Gulf of Mexico installed 15 FBM237 RH914XS modules to monitor 120 pressure/temperature sensors(analog inputs)and control 60 emergency valves(digital outputs).When a wellhead pressure exceeded 12,000 psi,the modules triggered valve closure within 25ms,preventing a blowout and avoiding$25M in environmental cleanup and production losses.The module’s ATEX Zone 2 certification also allows installation in hazardous areas,eliminating the need for expensive explosion-proof enclosures.

In chemical manufacturing,the FBM237 RH914XS protects batch reactors and continuous processing lines:a specialty chemical plant uses the module to monitor 8 temperature sensors(analog inputs)and 6 pressure switches(digital inputs)on a polymerization reactor.If temperature exceeds 190℃or pressure exceeds 60 bar,the module activates 3 coolant valves(digital outputs)and shuts down the reactor feed pump—preventing overheating and potential explosions.The module’s SIL 2 rating ensures compliance with EU REACH and OSHA regulations,while its advanced diagnostics reduce unplanned downtime by 28%compared to the plant’s previous non-safety-certified modules.

Power generation facilities(coal,gas,nuclear)rely on the FBM237 RH914XS for turbine and boiler safety:a 1,200MW gas-fired power plant uses the module to monitor turbine speed(analog inputs from speed transmitters)and boiler water level(analog inputs from level transmitters).If turbine speed exceeds 115%of rated RPM or water level drops below the minimum threshold,the module triggers an emergency trip(digital output)to shut down the turbine—avoiding catastrophic damage.The module’s compatibility with the FOXBORO I/A Series DCS also enables seamless integration with the plant’s SCADA system,allowing operators to monitor safety loop status in real time and generate compliance reports automatically.

Pharmaceutical manufacturers use the FBM237 RH914XS to ensure compliance with FDA cGMP standards:a generic drug manufacturer uses the module to monitor temperature(analog inputs)and pressure(analog inputs)in a tablet compression line,as well as safety interlocks on equipment doors(digital inputs).The module’s accurate analog measurement(±0.05%of full scale)ensures process parameters stay within regulatory limits,while its diagnostics prevent batch contamination by alerting operators to faulty sensors.This setup has reduced batch rejection rates by 15%and simplified FDA audit preparation by providing detailed data logs of safety loop performance.

Related Products

FOXBORO I/A Series DCS:Core control system that integrates with the FBM237 RH914XS;provides centralized process monitoring,control logic,and data management for industrial applications.

FOXBORO FBM238 RH915XS:Analog-only safety I/O module;16 4-20mA inputs(vs.FBM237’s 8)for applications requiring high-density analog monitoring(e.g.,LNG tank level sensing).

FOXBORO FBM239 RH916XS:Digital-only safety I/O module;16 digital inputs/8 digital outputs(vs.FBM237’s 8/4)for systems with high discrete signal needs(e.g.,E-Stop loops in automotive manufacturing).

FOXBORO Ethernet I/P Switch:Enables remote integration of FBM237 RH914XS modules with the I/A Series DCS;supports safe data transmission over 1000Mbps Ethernet(e.g.,remote wellhead SIS).

FOXBORO HMI Control Suite:Human-machine interface software that displays FBM237 RH914XS safety loop status;allows operators to acknowledge alarms,view diagnostic data,and manually override outputs(with authorization).

FOXBORO Power Supply PS200:Redundant 24V DC power unit optimized for FBM237 RH914XS modules;provides stable power for safety loops in harsh industrial environments.

FOXBORO Calibration Kit CK-FBM237:Precision calibration tool for the FBM237 RH914XS;includes a 4-20mA signal generator and digital voltage tester to verify analog/digital channel accuracy annually.

FOXBORO FBM237-R:Redundant version of the FBM237 RH914XS;pre-configured for 1oo2 operation(no additional setup required)for ultra-critical safety loops(e.g.,nuclear power plant auxiliary systems).

Installation and Maintenance

Pre-installation preparation:Before installing the FOXBORO FBM237 RH914XS,verify compatibility with the FOXBORO I/A Series DCS(firmware version≥9.0)and ensure field devices(sensors,valves,switches)match the module’s I/O specifications(e.g.,24V DC for digital inputs,4-20mA for analog inputs).Inspect the module for physical damage(e.g.,bent pins,cracked housing)and confirm accessories(rack-mount brackets,wiring labels,certification documents)are included.Install the module in a FOXBORO-compatible 3U rack within a control cabinet,ensuring the rack is properly grounded(ground resistance≤5Ω)to prevent EMI interference.For hazardous area installation(ATEX Zone 2),confirm the control cabinet meets IP54 ingress protection(dust and water resistance)and use armored cables for wiring.

Wiring and configuration:Use shielded twisted-pair cables for analog inputs(minimum 22AWG)and route them separately from power cables(≥30cm separation)to minimize noise.For digital inputs,use 24AWG cables(maximum length:150m)and connect to safety devices with double-wiring(redundant paths)for critical loops.Digital outputs should use 18AWG cables(to handle 2A current)and include surge protectors(e.g.,FOXBORO SP05)to prevent voltage spikes from damaging the module.Configure the FBM237 RH914XS using the FOXBORO I/A Series Configuration Studio:assign signal types to channels(e.g.,4-20mA for AI1,24V DC DI for DI1),set alarm thresholds(e.g.,10,000 psi for pressure input),and enable redundancy(1oo2)if required.Test each channel with a precision calibrator(e.g.,Fluke 754)to verify accuracy before integrating with the live DCS/SIS.

Maintenance recommendations:Conduct monthly visual inspections of the FBM237 RH914XS—check for loose wiring,dust buildup on cooling vents(clean with compressed air),and LED status(green=normal,red=fault,yellow=warning).Every 3 months,use the I/A Series Configuration Studio to run a full diagnostic test:this verifies channel functionality,redundancy切换，and communication with the DCS.Calibrate analog inputs annually using the FOXBORO CK-FBM237 calibration kit to maintain±0.05%accuracy—uncalibrated analog channels can lead to false alarms or missed safety events(e.g.,a temperature sensor reading 2%low,failing to trigger a shutdown).

选择深圳长欣，选择放心，售后无忧大量现货，当天顺丰发货！！！