Foxboro P0922VW FBM218 HART Analog I/O Module
Manufacturer: Foxboro
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Part Number: FBM218 P0922VW
Condition：New with Original Package
Product Type: Analog I/O Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Foxboro P0922VW FBM218 HART Analog I/O Module
Configured for analog signal acquisition and HART device control in Foxboro Evo and I/A Series platforms, the Foxboro P0922VW (FBM218 HART Analog I/O Module) provides direct physical/electrical execution of process loops.
Suffix Breakdown & Model Matrix
The module catalog designation maps directly to specific hardware functional groups and board level components:
- FBM218: Base module architecture designating the 16-input / 8-output analog I/O fieldbus module family.
- P0922VW: Specific manufacturing part number representing the primary module assembly equipped with channel-to-channel isolation and HART modem hardware.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | P0922VW |
| Brand | Foxboro |
| Origin | United States |
| Weight | 0.284 kg |
| Dimensions | 10.4 x 4.5 x 11.4 cm |
| Operating Temp | -20 deg C to +70 deg C |
| Power Consumption | Standard Backplane Bus Load |
| Input Channels | 16 analog (4-20 mA) |
| Output Channels | 8 HART-enabled analog outputs |
| Resolution | 12-bit A/D conversion |
| Accuracy | +/-0.1% of full scale |
| Communication | Redundant 2 Mbps HDLC fieldbus |
HART Protocol & Channel Isolation Performance
The hardware integrates dedicated Frequency-Shift Keying (FSK) modems across its output channels, enabling simultaneous 4-20 mA HART loop protocol signal transmission and digital parameter configuration. Dedicated channel-to-channel isolation circuits prevent circulating ground loop currents, isolate field wiring transients from internal control logic, and maintain signal fidelity across dense control cabinet backplanes.
Frequently Asked Questions
Q: How does the secondary module assume loop execution during a master module failure in redundant configurations?
A: In dual-module redundant setups, the secondary module continuously tracks master status over the 2 Mbps HDLC fieldbus. Upon detecting a master diagnostic fault, the secondary module instantly takes over loop control without output step changes.
Q: Are standard non-HART 4-20 mA devices compatible with the 16 analog input channels?
A: Yes, all 16 analog input channels acquire standard 4-20 mA signals from non-HART transmitters, converting analog values using 12-bit A/D converters at +/-0.1% full-scale accuracy.
Q: What physical protection level guards against high voltage field spikes?
A: Integrated galvanic isolation barriers withstand potential differences up to 600 VAC for one minute between individual channels, internal logic circuits, and chassis ground.
Field Installation Guidelines
- Align the module with the baseplate slot guides and push firmly until backplane connectors latch into place.
- Fasten the module retaining screws securely to establish solid low-impedance electrical contact with the mounting rail ground.
- Route 4-20 mA analog signal cables in separate wiring trunks away from high-voltage AC power conductors to limit noise induction.
- Connect field cable shield drain wires to a single instrument ground point inside the enclosure to avoid ground loops.
- Inspect field loop wiring, external transmitter power sources, and terminal connections prior to applying loop power.