Description

Supply Voltage:24 V DC

Input Type:8-channel 4-20 mA

Resolution:16-bit

Accuracy:±0.1%FS

Protection Rating:IP20

Section 3:Product Details

FOXBORO FBM201 Technical Specifications

Product Model:FOXBORO FBM201

Manufacturer:FOXBORO(now part of Schneider Electric)

Product Type:Analog Input Module

System:I/A Series Distributed Control System(DCS)

Number of Channels:8

Input Signal:4-20 mA DC(standard industrial signal)

Resolution:16-bit(65536 levels)

Basic Accuracy:±0.1%FS

Channel Isolation:Channel-to-Channel Isolation

HART Support:HART Supported Protocol(enabled via jumper)

Data update rate:1 per second(per channel)

Communication interface:Foxboro communication bus(I/A Series backplane bus)

Operating temperature:0°C to+60°C

Storage temperature:-40°C to+85°C

Power requirement:24 V DC(via backplane)

Power consumption:Typical 3.5 W

Mounting method:Snap-on,standard I/A Series rack(e.g.,FTA terminal block)

Ingress protection:IP20

FOXBORO FBM201 Product Overview

Speaking of the FOXBORO FBM201,I need to tell you a little bit about this”old-school”AI module.This isn’t some newfangled gadget;it’s a long-standing AI module used in I/A Series DCS systems for over 30 years,a true”old-fashioned”in industrial automation.Don’t be fooled by its plain appearance—a green board plugged into the rack—but it’s the”eyes”of the entire control system,sensing the field.

What does the FOXBORO FBM201 do?Simply put,it collects 4-20mA signals from field transmitters—critical parameters such as pressure,temperature,flow,and liquid level.It features eight channels,each equipped with 16-bit high-precision A/D conversion,with a basic error controlled within±0.1%,ensuring exceptional signal stability.Even more impressive,it supports channel-to-channel isolation,with each input channel electrically isolated to completely eliminate ground loop interference.Even when used near inverters or large motors,signal jitter remains virtually nonexistent.

What’s the most reassuring aspect of this product?Its stability.The I/A Series system boasts durability.As the core I/O card,the FOXBORO FBM201 boasts industrial-grade design and components,offering exceptional resistance to electromagnetic interference and compliance with IEC 61000 standards.Many established factories have used it for over a decade and are still operating without major issues.

It also supports HART communication.If you’re using a HART-compliant smart transmitter,such as the Rosemount 3051,on-site,you can simply jumper a wire on the module to read device configuration parameters and diagnostic information.There’s no need to connect a separate HART modem,saving both time and money.

Main Features and Advantages

Let’s start with accuracy and stability.The FOXBORO FBM201 uses a high-precision ADC chip with 16-bit resolution and 65,536-level interpolation,enabling it to capture even the slightest signal changes.Its±0.1%accuracy is top-tier in industrial applications,significantly better than many domestic modules.Crucially,it offers long-term drift-free operation and a low temperature coefficient,ensuring consistent performance in summer and winter.

Next,let’s talk about isolation design.The biggest fear in industrial applications?Ground loop interference!Different devices have different ground potentials.Once connected,current can oscillate and cause signal fluctuations.The FOXBORO FBM201 features isolation for each channel,fully isolating the input,output,and power supply,completely eliminating interference paths.Whether you use it in a high-voltage distribution room or near a frequency converter cabinet,the signal remains rock-solid.

HART support is also a major highlight.Who still uses pure analog signals these days?Smart instruments all have HART.This module natively supports it.Simply pair it with an FTA terminal block(such as the FTA421C)to enable HART communication,reading the transmitter’s zero point,span,and fault codes,enabling remote diagnostics and significantly reducing maintenance costs.

Maintenance is also convenient.The hot-swappable design allows you to simply remove and replace a faulty module without shutting down the entire rack,while the system continues to operate normally.LED status indicators are clear at a glance:RUN is solid green,FAULT is off red,and channel indicators indicate communication status,making it easy to identify the faulty channel at a glance.

The FOXBORO FBM201 is a cornerstone of the I/A Series DCS platform,delivering reliable and precise analog signal acquisition in demanding industrial environments.With eight high-accuracy 4-20mA input channels,16-bit resolution,and channel-to-channel isolation,it ensures stable data collection even in electrically noisy plants.Its support for the HART protocol enables seamless integration with smart field devices,enhancing diagnostics and maintenance efficiency.Designed for continuous operation,the FBM201’s hot-swappable capability and robust construction make it a trusted choice for power,oil&gas,and chemical industries where process integrity is paramount.

Applications

The FOXBORO FBM201 is used in various industrial sites.In thermal power plants,it collects pressure and temperature signals from various points in boilers to assist in combustion control.In petrochemical refineries,it monitors reactor liquid levels and flow rates to ensure process safety.In large water plants,it measures raw water turbidity and residual chlorine levels for precise dosing.

The desulfurization system at a coastal power plant previously used a domestic AI module,which suffered from frequent signal drift and pH control failure.After replacing it with the FOXBORO FBM201,the system has experienced no abnormal alarms for three months,and the operators are hailing the investment as worthwhile.Furthermore,the polymerizers in a chemical plant require extremely high temperature control precision.The signals collected by the FOXBORO FBM201 ensure incredibly stable PID control and significantly improve product batch consistency.

Even when retrofitting older systems,the FOXBORO FBM201 offers seamless compatibility.Many customers are still using I/A Series systems,but their components have been discontinued.We help them find genuine original equipment and directly replace them without requiring any program changes,saving time and effort.

Selection Guide/Purchasing Recommendations

Are you launching a new project or replacing old equipment?If it’s an I/A Series system,the FOXBORO FBM201 comes standard with the system and can be used directly.But please note:it requires a dedicated FTA terminal block,such as the FTA421C(with HART)or FTA422C(without HART);it cannot be wired directly.

The second issue is HART requirements.If your site is fully equipped with HART transmitters,we recommend using the FTA421C terminal block to enable HART functionality.If you only need standard 4-20mA signals,the FTA422C will suffice and be more cost-effective.

Finally,a reminder:Refurbished parts are rampant on the market.Some modules are disassembled,repainted,and have aged internal circuitry,leading to problems within a few months.Every FOXBORO FBM201 we sell is genuine and comes with a complete serial number for traceability,giving you peace of mind.

Frequently Asked Questions(FAQ)

Q:Does the FOXBORO FBM201 support 0-10V signals?

A:No.The FOXBORO FBM201 is designed specifically for 4-20mA signals.If a voltage signal is required,select the FBM212 or FBM217.

Q:How do I enable the HART function?

A:You need to set a jumper on the module and set the FTA terminal block to HART mode(e.g.,FTA421C).After configuration,you can read HART variables in the I/A Series system.

Q:Can it be connected to other brands of PLCs?

A:No.The FOXBORO FBM201 is a dedicated card for the I/A Series and can only be plugged into a Foxboro rack.To connect to other systems,you must use a communication gateway.

Q:Is hot-swapping supported?

A:Yes!Modules can be replaced while the system is running.The new module is automatically recognized upon power-up,eliminating the need for downtime.

Q:Will accuracy drift over time?

A:Minimum.Industrial-grade components and aging screening ensure long-term stability.Drift is negligible over ten years of normal use.

Related Products

FOXBORO FBM212–8-channel 0-10V analog input module.

FOXBORO FBM202–8-channel RTD input module.

FOXBORO FBM207–8-channel thermocouple(TC)input module.

FOXBORO FTA421C–FTA terminal block with HART communication,for use with the FOXBORO FBM201.

FOXBORO FTA422C–Standard FTA terminal block without HART communication.

FOXBORO FBM02–Communication processor module,for system master control.

FOXBORO P0920XA–24V DC power supply module,for rack power supply.

FOXBORO I/A Series rack–for mounting FBM series modules.

Pre-Installation Preparation

Before installing the FOXBORO FBM201,confirm that the rack model and FTA terminal block match.Check the backplane for cleanliness and freedom from dust and metal shavings.When inserting the module,align it with the guide rails and push firmly until it clicks into place.Before powering on,confirm that the power supply voltage is normal and the FTA terminal block jumpers are correctly set(especially for HART mode).

Maintenance Recommendations

We recommend a quarterly inspection.Check the panel LEDs:the RUN light should be solid green,the FAULT light should be off red,and the channel lights should be flashing normally.Use the I/A Series operator station to check that each channel’s signal is within the specified range and that there are no over-range alarms.In environments with poor environmental conditions,clean dust regularly to prevent heat dissipation problems.If replacement is necessary,simply hot-swap the module;the system will automatically recognize the new module.

Product Guarantee

Choosing the FOXBORO FBM201 means choosing not only a high-precision I/O module but also a commitment to you from Shenzhen Changxin([www.cnplcdcs.com]).Every device we provide is genuine and undergoes rigorous quality inspection to ensure a perfect match with your I/A Series system.We understand that every second counts in industrial production.Therefore,we provide expert technical support and responsive service,ensuring you’re on track every step of the way,from selection consultation to troubleshooting.Choosing us means choosing a trustworthy,long-term partner,ensuring a more stable and sustainable path to automation.

Our global commitment at Shenzhen Changxin ensures that every FOXBORO FBM201 module meets the highest standards of quality and authenticity.We offer comprehensive technical support and rapid logistics to minimize downtime for critical process control systems.Every unit undergoes rigorous inspection before shipment,guaranteeing reliable performance in demanding industrial environments.Whether you’re maintaining legacy Foxboro systems or upgrading existing installations,we provide genuine components and expertise you can trust.Partner with us for a seamless and dependable automation experience.

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