Description
The Honeywell 51402755-100 (K4LCN-4) is a high-performance 4 MegaWord Local Control Network (LCN) processor board engineered specifically for Honeywell’s TDC 3000 distributed control systems. Powered by a robust Motorola 68040 processor architecture, it integrates core node processing logic with an embedded LCN interface, driving high-speed data exchanges, synchronization clock generation, and runtime node management in mission-critical industrial process environments.
📊 Product Datasheet Parameters
- 🏷️ Product Type & Model: LCN Processor Card (Model: K4LCN-4)
- 🔢 Manufacturer Part Number: 51402755-100
- ⚙️ System Application: Honeywell TDC 3000 Distributed Control System (DCS) / LCN Nodes
- 💻 Microprocessor Architecture: Motorola 68040 32-bit processor
- 🧠 Board Memory Capacity: 4 MegaWords (4 MW) non-expandable system memory
- 🔌 Communication Interface: Integrated Local Control Network (LCN) interface supporting standard 5 MHz data rate communication
- ⏱️ Clock Synchronization: Generates and receives digital clock synchronization data frames over the LCN carrier network
- 📐 Form Factor / Mounting: Plug-in modular system rack card file slot format
- 🌍 Country of Origin: United States
- 🌡️ Operating Temperature Range: 0^\circC to +60^\circC (32^\circF to 140^\circF) industrial standard threshold
📖 Product Instructions for Use
- Power Isolation: Ensure that all cabinet rack power supplies and node-specific power sources are completely turned off and locked out before installing, extracting, or servicing the K4LCN-4 board.
- Electrostatic Precautions: Wear a properly grounded anti-static wrist strap when unboxing or handling the printed circuit board to protect sensitive internal microprocessors and memory ICs from electrostatic discharge.
- Card Slot Insertion: Align the processor card carefully with the designated node card file slots, ensuring backplane connector pins and edge connectors seat fully and evenly without applying excessive force.
- Firmware & Diagnostic Verification: Restore system rack power and utilize system-level console diagnostics to verify proper initialization, memory checks, firmware execution, and stable LCN network communication handshake.
❓ Common Questions & Answers (Q&A)
- Q: What is the primary role of the K4LCN-4 processor card?
A: It serves as the main node processor board for Honeywell TDC 3000 systems, executing control strategies and managing network communication across the Local Control Network (LCN).
- Q: Is the memory on the K4LCN-4 module upgradeable?
A: No. The “-4” designation indicates a fixed 4 MegaWord memory configuration. If higher memory tiers are required for specialized node personalities, higher-capacity variants (such as K4LCN-8 or K4LCN-16) must be utilized.
- Q: Does this card handle network timing synchronization?
A: Yes, the K4LCN series is capable of generating and receiving digital clock synchronization data frames at the standard 5 MHz LCN transmission rate to maintain system-wide timing integrity.
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