Honeywell 51196727-100 is a high-reliability digital input module designed for the
TDC 3000 Distributed Control System (DCS). It serves as a critical interface between field devices (e.g., limit switches, pressure sensors, alarm contacts) and the DCS controller, converting discrete on/off signals into digital data for real-time monitoring and control. This module is engineered for harsh industrial environments, supporting high-density signal processing in oil & gas, chemical processing, and power generation sectors, with compliance to North American safety standards (UL/cUL).
Processing & I/O Capabilities:
- 16 discrete input channels, supporting both dry contact (no voltage) and wet contact (24 VDC) signals.
- High-speed signal sampling (1 ms per channel) to capture transient events (e.g., emergency stop triggers) in safety-critical loops.
- Supports up to 2048 system-wide I/O points when paired with TDC 3000 expansion racks.
Communication:
- Integrates with TDC 3000 controllers via the Local Control Network (LCN) at 1 Mbps, enabling seamless data transmission to operator stations.
- Equipped with diagnostic ports for troubleshooting via TDC 3000 Engineering Workstation software.
Rugged Design:
- Extended operating temperature range (-40°C to +70°C) for harsh industrial environments.
- 2.5 kV galvanic isolation (channel-to-channel, channel-to-ground) to prevent interference from high-voltage equipment.
- Shock-resistant (50 G peak, 11 ms) and vibration-tolerant (2.5 G RMS), compliant with IEC 60068-2 standards.
Programming & Configuration:
- Configurable via Honeywell TDC 3000 Engineering Workstation for channel mapping and debounce settings (0–100 ms).
- Supports IEC 61131-3 standards for compatibility with modern programming tools.
| Parameter | Description |
|---|
| CPU/Processing | 16-bit microcontroller with 1 ms/channel sampling rate |
| Memory | 2 KB non-volatile memory for configuration data |
| I/O Capacity | 16 digital input channels; 2048 system-wide I/O points with expansion |
| Input Signal Type | 24 VDC (wet contact); dry contact (requires external 24 VDC) |
| Input Current | 5 mA max per channel (wet contact) |
| Communication Interface | TDC 3000 Local Control Network (LCN); diagnostic RS-232 port |
| Power Supply | 24 VDC ±10% (1.5 A max), redundant inputs supported |
| Operating Temperature | -40°C to +70°C (operation); -40°C to +85°C (storage) |
| Physical Dimensions | 120 mm × 80 mm × 30 mm (4.72" × 3.15" × 1.18") (rack-mounted) |
| Weight | 0.3 kg (0.66 lbs) |
| Certifications | UL/cUL, CE, ATEX (Ex II 2G Ex d IIC T6), IEC 61508 SIL 2 |
Modular Architecture:
- Rack-mounted in TDC 3000 10-slot chassis, supporting up to 8 modules per rack for scalable I/O expansion.
- Hot-swappable design allows module replacement without system shutdown, reducing maintenance downtime.
Redundancy & Fault Tolerance:
- Optional dual power supplies for fail-safe operation in mission-critical applications.
- Built-in self-test (BIST) with LED indicators (power, fault, channel activity) for real-time diagnostics.
Industrial Compatibility:
- Compatible with TDC 3000 controllers (e.g., 51402497-200 XLC NE 2) and legacy TDC 2000 systems via adapters.
- Integrates with Honeywell Experion PKS via gateway modules for phased system upgrades.
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