Honeywell FC-DCOM-234/485 RS232/485 Safety Module

Honeywell FC-DCOM-234/485 Safety Manager Module

The Honeywell FC-DCOM-234/485 is a safety communication module. It works with Safety Manager systems. This module provides dual serial interfaces for safety-critical applications.

Technical Specifications

• Brand & Model: Honeywell FC-DCOM-234/485
• Module Type: Safety System Communication Module
• Communication Ports: 2x RS232 / RS485 Configurable
• Baud Rate: 19.2 kbps to 115.2 kbps
• Data Format: 8 data bits, 1 stop bit, no parity
• Power Supply: 24 V DC ±10%
• Current Consumption: 200 mA typical
• Isolation Voltage: 1500 V DC
• Protocol Support: Modbus RTU, Honeywell Safety Protocol
• Module Weight: 0.7 kg (1.54 lb)
• Dimensions: 130 × 110 × 45 mm

Safety Certifications

• SIL Rating: SIL3 Certified (IEC 61508)
• Safety Integrity: High-integrity communication
• Diagnostic Coverage: >99%
• Failure Rate: < 100 FIT
• MTBF: >1,000,000 hours

Environmental Specifications

• Operating Temperature: -20°C to +70°C (-4°F to +158°F)
• Storage Temperature: -40°C to +85°C (-40°F to +185°F)
• Humidity: 5-95% non-condensing
• Vibration Resistance: 5g @ 10-500 Hz
• Shock Resistance: 30g
• Protection Rating: IP20

Electrical Characteristics

• RS232 Signal Levels: ±12V
• RS485 Signal Levels: Differential ±5V
• Maximum Distance RS232: 15 meters
• Maximum Distance RS485: 1200 meters
• Termination: Built-in 120Ω jumper selectable
• ESD Protection: ±15kV air, ±8kV contact

Frequently Asked Questions

What communication protocols does it support?

• Modbus RTU and Honeywell proprietary safety protocols. Configurable for various industrial safety applications.

What is the safety certification level?

• SIL3 certified per IEC 61508 with >99% diagnostic coverage and <100 FIT failure rate.

What is the module weight and power consumption?

• Weight: 0.7 kg (1.54 lb). Power: 24V DC at 200 mA typical consumption. Dimensions: 130 × 110 × 45 mm.