Name: FBM218/237 P0916QD | Hybrid I/O Module (DI + AO)
Availability: InStock

FBM218/237 P0916QD | Hybrid I/O Module (DI + AO)

Parameter Name	Parameter Value
Product Model	FBM218/237 P0916QD
Manufacturer	FOXBORO/Schneider Electric
Product Type	Hybrid I/O Module (DI + AO)
Digital Input Section (FBM218 Equivalent)
Channels	32 points (isolated in groups of 8)
Input Voltage	24V DC (10-30V)
Logic Threshold	15V ±1V
Response Time	≤ 5 ms
Contact Wetting	5 mA internal supply
Analog Output Section (FBM237 Equivalent)
Channels	8 isolated outputs
Signal Range	4-20mA / 0-10V selectable
Accuracy	±0.05% FS @ 25°C
Resolution	16-bit
Load Compliance	600Ω @ 20mA
Update Rate	50 ms/channel
Common Specifications
Isolation	1500V AC field-to-backplane
Baseplate	FBM201/FBM202 compatible
Power Consumption	3.8W @ 24V DC
Safety Certification	IEC 61511 SIL 2
Hazardous Rating	ATEX/IECEx Zone 2

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Description

Product Overview

The FOXBORO FBM218/237 P0916QD is a dual-function modular I/O assembly designed for the FOXBORO I/A Series® DCS, combining high-density discrete and analog signal processing in a single hot-swappable unit. This hybrid module integrates the functionality of the FBM218 32-point digital input and FBM237 8-channel analog output modules, optimized for space-constrained cabinets in critical process applications. The FOXBORO FBM218/237 P0916QD features galvanic isolation between discrete and analog sections (1500V AC), with gold-plated connectors enhancing signal integrity in corrosive environments. Its SIL 2-certified design supports redundant configuration via FBM202 baseplates, enabling predictive diagnostics like contact bounce detection (for DI) and current loop validation (for AO). Engineered for harsh conditions, the module operates at -40°C to 85°C with conformal-coated PCBs resisting humidity, H₂S, and salt spray per ISA-71.04 Class A3.

Technical Specifications

Parameter Name	Parameter Value
Product Model	FBM218/237 P0916QD
Manufacturer	FOXBORO/Schneider Electric
Product Type	Hybrid I/O Module (DI + AO)
Digital Input Section (FBM218 Equivalent)
Channels	32 points (isolated in groups of 8)
Input Voltage	24V DC (10-30V)
Logic Threshold	15V ±1V
Response Time	≤ 5 ms
Contact Wetting	5 mA internal supply
Analog Output Section (FBM237 Equivalent)
Channels	8 isolated outputs
Signal Range	4-20mA / 0-10V selectable
Accuracy	±0.05% FS @ 25°C
Resolution	16-bit
Load Compliance	600Ω @ 20mA
Update Rate	50 ms/channel
Common Specifications
Isolation	1500V AC field-to-backplane
Baseplate	FBM201/FBM202 compatible
Power Consumption	3.8W @ 24V DC
Safety Certification	IEC 61511 SIL 2
Hazardous Rating	ATEX/IECEx Zone 2

Key Features and Advantages:

Dual-Function Efficiency:
Eliminates separate modules, saving 50% rack space. Independent diagnostics: DI section detects contact weld/stiction via current monitoring; AO section validates load impedance (±2%) to detect cable breaks.

Intrinsic Safety Compliance:
Outputs meet FISCO Entity parameters (Ui=28V, Ii=100mA). Galvanic separation prevents ground loops between digital/analog systems.

FBM218

Configuration Flexibility:
Auto-ranging on AO channels: Software-selectable voltage/current mode per channel. DI filtering adjustable from 1-20 ms for noise suppression.

Predictive Maintenance:
Analog HART® pass-through (optional) enables valve diagnostics. DI contact life estimation via accumulated operate-time logging.

Application Domains

The FBM218/237 P0916QD excels in processes requiring mixed I/O consolidation:

Petrochemical: Tank farm systems combining level switch inputs (DI) and control valve outputs (AO)
Pharma: Clean utilities monitoring pressure switches while dosing chemicals
Power Generation: Burner management with flame scanner inputs and damper controls
Water Treatment: Pump station logic integrating float switches and VFD speed commands
Mining: Conveyor safety interlocks (DI) and slurry density control valves (AO) in ATEX zones