FBC07B (P0951CJ)

Basic Information

Model: FBC07B (Part Number: P0951CJ)

Manufacturer: Foxboro (Schneider Electric)

Type: 32-Channel Contact Sense Digital Input Module

System: I/A Series DCS

Status: Obsolete (DCS spare part)

Core Specifications

Input Channels: 32 channels (contact sense, non-isolated)

Signal Type: Dry contact / voltage sense (24 VDC logic)

Input Voltage: 24 VDC ±10% (sensing)

Logic Levels:

ON: < 5 VDC (contact closed)

OFF: > 18 VDC (contact open)

Response Time: < 10 ms per channel

Power Supply: 24 VDC ±10% (module power)

Power Consumption: Approx. 8 W

Operating Temperature: 0 °C to +60 °C

Storage Temperature: -40 °C to +85 °C

Environmental Rating: ISA S71.04 Class G3 (harsh industrial environments)

Mounting: Standard I/A Series baseplate

Dimensions: 140 mm × 165 mm × 45 mm

Weight: 0.7 kg

Key Features

High-Density Digital Input: 32 contact-sense channels for monitoring on/off devices (e.g., valves, switches, relays).

Fieldbus Compatibility: Interfaces with I/A Series redundant fieldbuses (2 Mbps) for reliable data transmission.

Hot-Swappable: Can be replaced without system shutdown (with redundant fieldbuses).

Diagnostics: On-board LED status indicators and DCS-based fault detection for quick troubleshooting.

Rugged Design: Built to withstand electrical noise, vibration, and temperature fluctuations in industrial settings.

Typical Applications

Process Industries: Chemical, petrochemical, oil & gas (monitoring valve status, limit switches, pump interlocks).

Power Generation: Boiler, turbine, and auxiliary equipment status monitoring (e.g., pressure switches, flow alarms).

Water Treatment: Monitoring of pump status, valve positions, and level switches.

Legacy System Upgrades: Replaces older Foxboro digital input modules in existing I/A Series DCS installations.

Difference from FBC07

FBC07: Field Control Processor (CPU module, P0951EA)

FBC07B: 32-channel contact sense digital input module (I/O module, P0951CJ)

Conclusion: FBC07B is an I/O module, not a processor; it is used for digital signal acquisition, not control execution.