DC-TFB402 Honeywell | Rugged FIM4 Field Interface for Control Systems
Manufacturer: Honeywell
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Part Number: DC-TFB402
Condition：New with Original Package
Product Type: Rugged FIM4 Field Interface for Control Systems
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Honeywell DC-TFB402 (51307616-176) is a high-performance FIM4 Field Interface Module for Experion PKS Distributed Control Systems.
It bridges field sensors and actuators to control systems, ensuring fast, reliable, and secure signal transmission.
The module supports both analog and digital signals across 4 channels and provides near-zero latency for real-time industrial automation.
With RS-485 and Honeywell proprietary network interfaces, it enables flexible communication via Modbus RTU and native protocols.
The DC-TFB402 features onboard diagnostics for fault detection and ensures signal integrity in harsh industrial environments.
It allows hot-swap replacement, minimizing downtime during maintenance.
Its IP65-rated conformal coating protects against dust, moisture, and corrosion, making it suitable for extreme conditions.
The module is DIN rail or backplane mountable, offering installation flexibility in industrial control cabinets.
Compliance with IEC 61508, UL 508, and ATEX standards ensures industrial-grade safety and reliability.
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | DC-TFB402 |
| Part Number | 51307616-176 |
| Type | FIM4 Field Interface Module |
| Channels | 4 (analog and digital signals) |
| Power Supply | 24V DC |
| Data Transfer Rate | Up to 1 Mbps |
| Latency | Near-zero, optimized for real-time control |
| Communication Interfaces | RS-485, Honeywell proprietary network |
| Supported Protocols | Modbus RTU, Honeywell native protocols |
| Input Impedance | 1 MΩ DC (TC only) |
| CMV with respect to Power | ±250 VDC or VAC RMS, dc to 60 Hz |
| CMRR (50/60 Hz) | 120 dB min (with 1000 Ω source impedance) |
| Voltage, Channel-to-Channel | ±250 VDC or VAC RMS, dc to 60 Hz |
| Crosstalk | 80 dB (dc–60 Hz), 120 dB at 50/60 Hz |
| NMRR (50/60 Hz) | 60 dB min |
| Line Frequency Integration | Fixed selection: 50 Hz or 60 Hz |
| RTD Sensor Excitation Current | 1 mA |
| Cold Junction Compensation | −20°C to +60°C (±0.5°C typical) |
| TC Linearization Accuracy | ±0.05 Ω/°C |
| Open Thermocouple Detection | ≤1000 Ω = no-trip; ≥1500 Ω = guaranteed trip |
| Operating Temperature | −40°C to +70°C |
| Protection Level | IP65 (with conformal coating) |
| Mounting Options | DIN rail or backplane installation |
| Dimensions | 130 × 80 × 40 mm |
| Weight | 0.4 kg |
| Country of Origin | USA |
| Certifications | IEC 61508, UL 508, ATEX |
FAQ
Q1: How many channels does the DC-TFB402 support?
A1: The Honeywell DC-TFB402 supports 4 channels handling both analog and digital signals.
Q2: What is the maximum operating temperature?
A2: It operates safely up to +70°C, suitable for harsh industrial environments.
Q3: Can the module be replaced without system shutdown?
A3: Yes, the DC-TFB402 has hot-swap capability to minimize downtime.
Q4: What protection does the module offer against dust and moisture?
A4: It features IP65-rated conformal coating, protecting against dust, moisture, and corrosion.
Q5: Which communication protocols are supported?
A5: The module supports Modbus RTU and Honeywell native protocols via RS-485 or proprietary network.