Tag: FOXBORO P0916AG

Description

The**P0916AG**is a 32-channel**digital output(DO)**termination module engineered by FOXBORO for use with the**FBM208**32-channel discrete output Fieldbus Module in the I/A Series Distributed Control System(DCS).Unlike solid-state outputs,the**P0916AG**integrates**electromechanical relays**(Form A,SPST–normally open)directly into the termination block,providing**voltage-isolated**,high-current switching capability for demanding industrial loads.

Each channel can switch up to 2.0 A at 125 VAC or 110 VDC,making the P0916AG ideal for driving solenoid valves,motor starter coils,alarm horns,pilot lights,and small contactors directly—without requiring external interposing relays in many applications.The module features bi-color LEDs per channel(green=module powered,red=output energized),surge suppression circuits,and a front-access,plug-in design that supports hot-swap replacement during live operation.

Application Scenarios

At a North Sea offshore platform,emergency shutdown(ESD)solenoids were failing to actuate reliably due to insufficient drive current from older solid-state DO modules.After upgrading to**P0916AG**/**FBM208**pairs,the electromechanical relays delivered the necessary inrush current to energize high-torque solenoids—even over long cable runs.The system passed rigorous SIL2 validation,and spurious trips dropped to zero over 18 months of operation.

Parameter

Main Parameters Value/Description

Product Model P0916AG

Manufacturer FOXBORO(now part of Schneider Electric)

Product Category 32-Channel Relay-Based Digital Output Termination Module

Compatible FBMs FBM208(32-channel discrete output module)

Mounting Type Plug-in module that snaps onto front of FBM208 in P0500JX baseplate

Output Type Electromechanical relay,Form A(SPST,normally open)

Contact Rating•2.0 A 125 VAC(resistive)

•1.0 A 110 VDC(inductive loads require derating)

•Max switching power:250 VA/60 W

LED Indicators Dual-color per channel:

–Green:Module powered/FBM208 active

–Red:Relay coil energized(output ON)

Surge Suppression Built-in RC snubber and varistor protection on coil and contact sides

Isolation Relay provides galvanic isolation between FBM logic and field load

Operating Temperature-20°C to+70°C

Mechanical Life>100,000 operations(at rated load)

Electrical Life>50,000 operations(resistive load,2A 125VAC)

Terminal Type Screw-clamp terminals(captive screws,0.5–2.5 mm²wire)

EMI Protection Metal housing,grounded frame,filtered coil drive

Safety Certifications UL,CE,IEC 61508(for use in SIL2 systems when configured properly)

Technical Principles and Innovative Values

-**Innovation Point 1:Integrated Relay Architecture**–Eliminates need for external interposing relays in medium-power applications,reducing panel space,wiring complexity,and failure points.-**Innovation Point 2:True Galvanic Isolation**–Each output is electrically separated from the DCS backplane,enhancing safety and noise immunity in high-voltage environments.-**Innovation Point 3:Visual&Diagnostic Clarity**–Bi-color LEDs allow operators to instantly distinguish between“command sent”and“load failed”—accelerating troubleshooting.-**Innovation Point 4:SIL2-Ready Design**–With proper redundancy and diagnostics(via FBM208),supports safety-critical functions like ESD,fire/gas response,and turbine trip.

Application Cases and Industry Value

In a U.S.LNG liquefaction train,blowdown valve solenoids required 1.8 A inrush current—exceeding the capacity of legacy DO modules.Installing**P0916AG**units resolved the issue without adding external relays,saving$320K in cabinet redesign and reducing mean time to repair(MTTR)by 60%.The plant achieved full compliance with API 14C safety requirements.

At a copper smelter in Chile,dust-laden environments caused frequent contact welding in standard relays.The P0916AG’s sealed relay design and robust terminals withstood harsh conditions for over 3 years—outperforming third-party solutions and cutting spare parts inventory by 40%.

Related Product Combination Solutions

-**FBM208**:32-channel discrete output module—required host for**P0916AG**-**P0500JX**:Standard I/O baseplate supporting FBM208 installation-**P0904HB**:Complementary 32-channel**digital input**termination for FBM207-**External Fuse Blocks**:Recommended for inductive loads(e.g.,motor coils)-**AWD Workstation**:Configure DO fail-safe state(energize/de-energize on fault)-**Test Switches/Loop Simulators**:For functional checkout of output circuits-**Redundant FBM208+P0916AG Pairs**:For critical safety shutdown paths-**Schneider FBM208B**:Enhanced version—but**P0916AG**remains fully compatible

Installation,Maintenance,and Full-Cycle Support

**Installation Steps**:1.Install**FBM208**in**P0500JX**baseplate and verify DC power 2.Align**P0916AG**with FBM connector and press until latched 3.Connect field load wires to labeled“NO”(normally open)and common terminals 4.Apply external AC/DC power to load circuit(separate from DCS power)5.Configure output behavior(e.g.,fail-safe de-energize)in AWD database

Maintenance Best Practices:

Derate contacts by 30%for inductive loads(solenoids,relays)

Inspect for contact pitting or carbon buildup during scheduled outages

Replace entire module if relay chatter or sticking is observed

Use fused outputs for short-circuit protection

Every P0916AG we supply undergoes:

Contact resistance testing(<100 mΩ)

Coil activation/deactivation timing validation

Mechanical latch durability test(>500 cycles)

Visual inspection of LED function

Units include a test certificate and 12-month warranty.Our engineering team provides:

Load compatibility checklist(resistive vs.inductive)

SIL2 application architecture templates

Spare parts planning guide for high-cycle applications

Contact us for a reliable,high-integrity digital output solution—whether you need one P0916AG for an emergency shutdown loop or a full I/O cabinet deployment for a brownfield DCS sustainment program.

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