Description
Product Description
The 51401996-100 EAMR (Enhanced Application Module Redundancy) assembly card is designed for redundancy management within the Honeywell TDC 3000 Distributed Control System. Installed alongside paired Application Modules, this board enables synchronized operation between primary and standby modules to maintain uninterrupted control operations in critical industrial environments.
By continuously mirroring application data between modules, the EAMR card enables instantaneous takeover by the standby processor in the event of a failure. This architecture significantly improves system reliability and ensures process continuity in high-availability control systems.
The 51401996-100 functions as part of the TDC 3000 redundancy infrastructure and operates in coordination with K4LCN processor boards. Through dedicated ribbon cable connections, the module transfers operational data and status signals between active and backup application modules.
Technical Specifications
| Parameter |
Specification |
| Manufacturer |
Honeywell |
| Model |
51401996-100 |
| Product Type |
Enhanced Application Module Redundancy (EAMR) Card |
| System Platform |
Honeywell TDC 3000 Distributed Control System |
| Function |
Hardware redundancy management for Application Modules |
| Redundancy Method |
Active / Standby module synchronization |
| Data Handling |
Real-time application data mirroring |
| Processor Interface |
Compatible with K4LCN-series processors |
| Communication Interface |
Ribbon cable connection to K4LCN-16 board |
| Operating Voltage |
24 VDC |
| Board Type |
EAMR Assembly Card |
| Weight |
2.07 lb |
Operational Role in TDC 3000 Architecture
Within a redundant Application Module pair, the 51401996-100 board maintains continuous synchronization of program execution states and process variables. If the primary module becomes unavailable due to hardware or system faults, the standby module automatically assumes control without interrupting plant operations.
This redundancy design is widely used in process industries where system downtime can result in production loss or safety concerns.
Typical Application Scenarios
• Petrochemical and refinery control systems
• Power generation plant automation
• Continuous manufacturing processes
• Safety-critical process monitoring environments
• Legacy Honeywell TDC 3000 installations requiring high availability
FAQ
Q: Is the EAMR card compatible with Experion PKS systems?
No. The 51401996-100 is specifically designed for the Honeywell TDC 3000 architecture and is typically not deployed in newer Experion PKS systems.
Q: Can the module operate with only one Application Module installed?
The card can be installed in a single-module environment, but redundancy functionality requires two Application Modules configured in an active/standby pair.
Q: What processor board does this card interface with?
The EAMR assembly is commonly used with K4LCN-series processor boards, particularly the K4LCN-16 interface board.
