FBM241 discrete I/O interface module

The FOXBORO FBM241 is a discrete I/O interface module for Foxboro’s I/A Series Distributed Control System (DCS), available in multiple models such as FBM241C and FBM241D. Below is its detailed information:

1. Models & Channel Configuration

FBM241C: 8-channel contact input + 8-channel discrete output (external power supply).
FBM241D: 8-channel contact input + 8-channel discrete output (internal power supply).

2. Electrical Parameters

Input Voltage:
- For FBM241C: Contact voltage ranges from 15 to 60VDC (unprotected - no fuse, or protected - fused).
- For some FBM241 series modules: Additional support for 125VAC/125VDC or 240VAC input voltages.
Input Current: For FBM241C, maximum input current is 2A or 4mA, depending on the voltage range.
Output Voltage: Typically provides a stable 5VDC output.
Output Current: Maximum output current up to 10A, sufficient for most application scenarios.

3. Performance Parameters

Processor: Equipped with a 32-bit RISC processor, delivering strong data processing capabilities.
Operating Temperature: Slight variations across data sources; common ranges are -20°C to +50°C or 0°C to +60°C.
Storage Temperature: -40°C to +70°C.
Operating Humidity: 5% to 95% relative humidity (non-condensing).

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