P0926GQ Foxboro Analog Input Module

Foxboro P0926GQ FBM Analog Input Modules

Foxboro P0926GQ FBM Analog Input Modules

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Foxboro P0926GQ FBM Analog Input Modules Configured for analog signal acquisition in Foxboro I/A Series DCS networks, the Foxboro P0926GQ...

رمز المنتج: P0926GQ

Manufacturer: Foxboro
Product No.: P0926GQ
Product Type: Analog Input Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 740g
Shipping port: Xiamen
Warranty: 12 months

وصف التقييمات

Foxboro P0926GQ FBM Analog Input Modules

Configured for analog signal acquisition in Foxboro I/A Series DCS networks, the Foxboro P0926GQ (P0926GQ Analog Input Modules) provides direct physical/electrical execution. The module processes 16 isolated analog input channels accepting standard 4-20 mA DC transmitter signals across a 12-bit to 16-bit analog-to-digital conversion scale. Operating on a nominal 24 VDC backplane power feed with an 8 W power dissipation profile, the rack-mounted hardware maintains full channel-to-channel and channel-to-system galvanic isolation to suppress common-mode electrical noise across redundant Fieldbus communication paths.

Hardware Specifications

Parameter	Specification
Model	P0926GQ
Brand	Foxboro
Origin	USA
Weight	0.74 kg (1.63 lbs)
Dimensions	23 cm x 22 cm x 6 cm
Operating Temp	0 deg C to +60 deg C
Power Consumption	~8 W at 24 VDC nominal
Product Type	Analog Input Modules
Signal Input	16 channels, 4-20 mA DC range
Resolution	12-bit to 16-bit A/D conversion
Galvanic Isolation	Channel-to-channel and channel-to-system isolation
System Bus	Foxboro I/A Series redundant Fieldbus
Diagnostics	Integrated channel health monitoring, watchdog, and status LEDs
Storage Temp	-40 deg C to +85 deg C
Operating Humidity	5% to 95% non-condensing

Process Control & DCS Instrument Integration

The analog input fieldbus module conditions pressure, temperature, flow, and level transmitter telemetry before broadcasting digitized process variables to central control processors. When interfacing field instruments operating over the 4-20 mA HART loop protocol, internal galvanic isolation barriers decouple sensor wiring loops, eliminating ground loops that corrupt signal accuracy. Continuous internal diagnostic routines run in the background to verify A/D conversion linearity, sense wire integrity, and backplane health, illuminating front-panel LEDs to indicate channel faults without interrupting real-time control execution.

Frequently Asked Questions

Q: How does channel-to-channel galvanic isolation prevent system-wide signal degradation?

A: Optical and transformer barriers isolate each 4-20 mA current loop independently. An electrical short or ground potential shift on one field transmitter remains isolated to that channel, preserving normal operation across the remaining 15 inputs.

Q: Is live insertion and removal supported during active controller operation?

A: Yes, the hot-swappable module incorporates staggered pin connectors on the rear interface, ensuring frame ground and 24 VDC power engage before data communication lines to prevent signal bus interruption during online maintenance.

Field Installation Guidelines

Backplane Insertion: Align module card edges with the carrier frame guides and press firmly until the locking mechanism latches the backplane connector into place.
Shield Line Termination: Connect field wiring cable shields directly to the dedicated cabinet earth ground bus bar, keeping drain wires short to maximize high-frequency noise suppression on 4-20 mA loops.
Cable Channel Isolation: Route 4-20 mA analog input cables in separate wireways away from high-voltage AC power lines, motor leads, and switching inductive loads.
Power Feed Verification: Ensure the 24 VDC system power supplies maintain voltage regulation within specified tolerances before energizing the baseplate carrier assembly.
Thermal Clearance: Maintain at least 50 mm of unobstructed ventilation space above and below the module rack to support convective air cooling across internal components.

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