Honeywell 51401288-200 I/O Processor Module
Warranty: 1 year
Condition : brand new in factory sealed box
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Detail
- Product NameHoneywell 51401288-200 I/O Processor Module
- Item NO.3741474
- Weight0.2500 kg = 0.5512 lb = 8.8185 oz
- CategoryDCS
- BrandHoneywell
- Creation Time2026-08-19
51401288-200
Product Profile
51401288-200 is an I/O Processor Module from Honeywell's legacy TDC 3000 distributed control system family. This module serves as a key component in the I/O subsystem, providing processing and communication capabilities for connecting field I/O to the TDC 3000 Universal Control Network (UCN).
The 51401288-200 is part of the TDC 3000 I/O Processor series, designed to handle data acquisition, signal conditioning, and communication tasks for analog and digital I/O modules. It operates within the TDC 3000 architecture, interfacing with the Local Control Network (LCN) and UCN to ensure reliable data exchange between field devices and the control system.
This module is now considered a legacy product and has been discontinued by Honeywell. It is available only through third‑party suppliers as refurbished or new‑old‑stock (NOS) units.
- TDC 3000 I/O processing
- UCN / LCN interface
- Field I/O communication
- Redundancy support
- Hot‑swap capable
Technical Data
Hardware specifications
| Manufacturer | Honeywell Process Solutions |
| Model | 51401288-200 |
| Product type | I/O Processor Module |
| System compatibility | TDC 3000 |
| Network interface | Universal Control Network (UCN) |
| Processor type | Proprietary Honeywell ASIC |
| Memory | Integrated RAM / Flash |
| I/O capacity | Varies with configuration |
| Communication speed | UCN: 5 Mbps (typical) |
| Redundancy | Supported (dual‑module configuration) |
| Power supply | 24 VDC / backplane powered |
| Power consumption | Typical 10W – 20W |
| Operating temperature | 0°C to +60°C |
| Storage temperature | -40°C to +85°C |
| Certifications | UL, CSA, CE |
Interfaces & status
| Network ports | Dual coaxial (UCN) |
| LED indicators | RUN, FAULT, ACTIVE, STANDBY, COMM |
| Mounting | TDC 3000 I/O rack |
| Hot‑swap | Supported (redundant mode) |
| Conformal coating | Standard |
| Status monitoring | Self‑diagnostic capabilities |
System Role
The 51401288-200 functions as the communication and processing interface between the TDC 3000 Universal Control Network (UCN) and field I/O modules. It aggregates data from multiple I/O modules, performs signal conditioning and scaling, and exchanges data with the higher‑level control network.
In typical TDC 3000 installations, this module is installed in the I/O subsystem rack, where it communicates with the UCN over redundant coaxial cabling. It provides the processing power necessary to support analog and digital I/O modules, ensuring timely data delivery to controllers and operator stations.
The module supports redundant configurations with automatic failover, ensuring high availability for critical I/O processing tasks. When paired with a redundant partner module, it provides seamless switchover in the event of a failure.
- TDC 3000 I/O subsystem
- UCN network interface
- Analog / digital I/O support
- Redundant configurations
- Legacy system sustainment
Compatibility
The 51401288-200 is compatible with the following TDC 3000 components and modules.
Supported components
| System | TDC 3000 |
| Network | Universal Control Network (UCN) |
| I/O modules | Analog input, analog output, digital input, digital output |
| Controller compatibility | TDC 3000 controllers |
| Rack compatibility | TDC 3000 I/O racks |
| Redundancy module | Pair with identical 51401288-200 for redundant operation |
- 51401288-200 is designed exclusively for TDC 3000 systems and is not compatible with Experion PKS Series C architecture without additional interface hardware.
- For redundant configurations, two modules must be installed with identical firmware revisions.
- Verify UCN cabling and termination requirements (75Ω coaxial) before installation.
- This module is discontinued; new installations should use Experion PKS Series C equivalents where possible.
Applications
The 51401288-200 is used in legacy TDC 3000 installations across various process industries.
FAQ – Frequently Asked Questions
No. This module has been discontinued by Honeywell. It is available only through third‑party suppliers as refurbished or new‑old‑stock (NOS) units.
For modern Experion PKS systems, equivalent functionality is provided by Series C communication and I/O modules. Migration to Series C architecture is recommended for long‑term support.
Yes. Two identical modules can be configured for redundant operation with automatic failover capability.
It communicates over the Universal Control Network (UCN) using coaxial cable with 75Ω termination.
Direct compatibility is limited. Experion PKS Series C uses a different architecture. Legacy TDC 3000 modules can be interfaced via migration gateways in some configurations.
Check the label on the module for the hardware revision and firmware version. Consult Honeywell documentation for revision compatibility with your system.
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