Description
The FOXBORO P0916VL is a field wiring termination module(also known as an I/O base or terminal carrier)designed for use with Foxboro I/A Series®distributed control systems(DCS).It serves as the mechanical and electrical interface between plug-in I/O modules(such as analog input AM,digital output DO,or specialty cards)and field instrumentation wiring(e.g.,4–20 mA transmitters,solenoid valves,limit switches).
While not an active electronic component itself,the P0916VL is mission-critical:it provides secure screw-terminal connections,physical keying to prevent incorrect module insertion,and often includes features like LED viewing windows,fuse holders,or isolated terminal banks—depending on the I/O card type it supports.
Following Schneider Electric’s acquisition of Invensys(Foxboro’s parent company),the I/A Series remains widely deployed,and the P0916VL continues to be essential for maintenance and spares management in aging—but still operational—process facilities.
Key Technical Characteristics
Parameter Value/Description
Manufacturer Foxboro(now part of Schneider Electric)
Product Type I/O Termination Module/Terminal Base Unit
Compatible Systems Foxboro I/A Series DCS(including FBM200-series I/O)
Mounting DIN rail(35 mm)or panel mount via optional brackets
Terminal Type Screw-clamp terminals(typically accepts AWG 12–24/0.2–2.5 mm²)
Channels Supported Varies by mounted I/O module(e.g.,8,16,or 32 points)
Keying Mechanical coding to ensure only compatible FBM modules can be inserted
Diagnostics Transparent window for viewing I/O module status LEDs
Hot-Swap Support Yes–enables module replacement without powering down the rack
Operating Temp 0°C to+60°C(standard industrial range)
Protection IP20(intended for installation inside NEMA 4/IP65 enclosures)
Legacy Status Still supported by Schneider,but considered legacy;no longer in active production
🔍Note:The“VL”suffix often denotes a specific revision or terminal configuration(e.g.,voltage-rated,labeled,or variant layout).Always verify compatibility with your specific FBM(Fieldbus Module)type(e.g.,FBM207,FBM242,etc.).
Application Scenarios
At a U.S.Gulf Coast refinery,a crude unit’s furnace temperature control loop uses FBM207 analog input modules mounted on P0916VL bases to read thermocouples.During a turnaround,a technician noticed oxidation on a terminal due to hydrogen sulfide exposure.Because the P0916VL’s terminals are individually accessible and clearly labeled,the wire was re-terminated in under 10 minutes—without disturbing adjacent loops or shutting down the heater.Later,during a partial DCS modernization,engineers retained the existing P0916VL bases and field wiring while upgrading only the controller layer to Schneider’s Evo Process Expert,saving over$500K in cabling costs.This reuse strategy highlights the enduring value of robust I/O infrastructure like the P0916VL.
Common Compatible I/O Modules(FBM Series)
FBM201:Discrete Input
FBM202:Discrete Output(dry contact)
FBM203:Pulse Input
FBM207:Analog Input(4–20 mA,HART-compatible)
FBM208:RTD/Thermocouple Input
FBM242:Analog Output(4–20 mA)
FBM244:High-Density Discrete I/O
✅The P0916VL is typically used with non-redundant or standard-density I/O modules.Redundant or high-vibration applications may use variants like P0916VH or spring-cage terminal versions.
Obsolescence&Support Strategy
Although Schneider Electric still lists the P0916VL in its legacy catalog,lead times can exceed 12 weeks,and pricing has increased significantly.Many users now rely on:
Certified refurbished units–tested for terminal integrity,latch function,and keying accuracy
Third-party equivalents–from reputable industrial automation suppliers(verify mechanical&electrical match)
Migration planning–using Schneider’s I/A Series Evolution path to EcoStruxure Process Expert,which can reuse field wiring via adapter plates
⚠️Caution:Avoid untested surplus modules—corroded terminals or broken latches can cause intermittent faults that are difficult to diagnose.
Related Accessories
P0916CA:Cover/door for P0916VL(protects terminals while allowing LED visibility)
P0916TB:Terminal labeling kit
FBM20x Series:Plug-in I/O modules that mount onto P0916VL
I/A Series Workstation(WS200/300):Engineering&operator interface
Schneider SFC200:Safety I/O system for SIL applications(modern alternative)
Availability&Support
We supply genuine and refurbished FOXBORO P0916VL termination modules that undergo:
✅Visual inspection for cracked housings or worn latches
✅Terminal torque verification(0.5–0.6 Nm)
✅Compatibility cross-check with FBM module specifications
✅Conformal coating(optional,for corrosive environments)
Each unit comes with a 12-month warranty and technical documentation.We also offer:
Bulk spares programs for critical plants
Cross-reference reports to modern equivalents
Migration consulting for I/A Series modernization
📞Contact us today for real-time stock availability,pricing,or assistance integrating the P0916VL into your lifecycle management plan.Keep your Foxboro DCS running—safely,reliably,and cost-effectively—even as technology evolves.
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