Honeywell 51403519-160 TDC 3000 Memory Board

Configured for high-velocity data storage and volatile register tracking in Local Control Network systems, the Honeywell 51403519-160 (51403519-160 Memory Board) provides direct physical/electrical execution. The hardware serves as a dedicated processing component utilized to hold active configuration databases, system variables, and execution parameters within the TDC 3000 processor subsystem.

Hardware Specifications

Honeywell DCS Integrated Signal Processing

• 4-20 mA HART Loop Protocol Integration Data Buffering: The memory array functions as a high-speed data well for raw process monitoring variables. It buffers digitized data blocks gathered from field instruments—including those managed via 4-20 mA HART loop protocol architectures—before releasing the arrays to the central LCN data highway.
• Channel-to-Channel Isolation Performance and Address Matrix Consistency: The physical layout of the board traces protects stored bit sectors from electrical interference propagating out of adjacent backplane channels. Parity-checking circuits continuously validate the memory blocks, ensuring zero bit-flip errors occur during high-velocity data reads by the main processor card.

Frequently Asked Questions

Q: Can the 51403519-160 memory board be extracted from the slot while the TDC 3000 processor is energized?

A: No. Removing this card while the backplane power distribution lines are active will disrupt the address bus lines, resulting in immediate processor memory corruption, data parity faults, and an automated system halt state.

Q: How is the volatile memory retained on the board during a total cabinet power loss?

A: The board relies on backup current routed through the chassis backplane from the centralized processor battery sub-assembly. This voltage trickle maintains the integrity of the configuration files and runtime parameters stored inside the memory chips during power failure events.