Honeywell TDC 3000 / TPS Modules: TC-RPSCA1 TC-RPSC04

Technical Dossier

Product Details And Specifications

Honeywell TDC 3000 / TPS Series: Comprehensive Module Range and Technical Overview

The Honeywell TDC 3000 (Total Distributed Control) and its successor platform TPS (TotalPlant Solution) represent one of the most widely deployed Distributed Control System (DCS) architectures in global heavy industry. Installed across petrochemical complexes, nuclear power facilities, crude oil refineries, pulp and paper mills, and large-scale chemical plants, the TDC 3000 / TPS platform has maintained a dominant installed base since its commercial introduction in the 1970s. Its modular backplane architecture, deterministic control execution, and multi-tier network topology (Local Control Network / Plant Network / Universal Control Network) made it the reference standard for continuous process control for over four decades. As of 2026, a significant portion of the global installed base remains in active production service, driving sustained demand for original spare parts, tested replacement modules, and lifecycle extension support.

The Evolution of TDC 3000 / TPS Architecture

The TDC 3000 platform was introduced by Honeywell in 1975 as one of the first commercially viable distributed control systems. The original architecture relied on the Data Hiway, a coaxial token-passing network connecting field controllers to operator consoles. Through the 1980s, Honeywell introduced the Local Control Network (LCN), a high-speed fiber-optic backbone that replaced the Data Hiway for inter-node communication and enabled the integration of Advanced Process Manager (APM), High-Performance Process Manager (HPM), and Logic Manager (LM) nodes.

The TPS (TotalPlant Solution) rebranding in the mid-1990s reflected the platform's expansion beyond process control into plant-wide information integration, incorporating the Universal Control Network (UCN) and the Plant Network (PN) for supervisory data exchange. Key compatibility considerations for maintenance engineers include: LCN modules are not electrically interchangeable with UCN modules; HPM cards require specific firmware revisions to operate in mixed-generation cabinets; and the transition from TDC 3000 to TPS introduced revised backplane pinouts on certain I/O carrier assemblies. Sites running pre-1990 hardware must validate module revision levels before substitution.

TDC 3000 / TPS Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced components within the TDC 3000 and TPS platform. Modules are classified by functional category.

Controllers & Processors

TC-RPSCA1: TPS redundant power supply controller assembly, primary node.
TC-RPSC04: TPS redundant power supply controller, revision 04 variant.
51304485-100: HPM High-Performance Process Manager main processor card.
51304485-150: HPM processor card, enhanced memory revision.
51401469-100: Advanced Process Manager (APM) controller module.
51401469-200: APM controller, extended I/O scan revision.
51304516-100: Logic Manager (LM) processor, ladder logic execution node.
51198947-100: UCN Interface Module, primary network node card.

Analog & Digital I/O Modules

51304754-150: Analog Input (AI) module, 16-channel, 4–20 mA HART-compatible.
51304754-200: Analog Input module, 16-channel, high-density revision.
51304362-100: Analog Output (AO) module, 8-channel, 4–20 mA isolated.
51305890-175: Digital Input (DI) module, 32-channel, 24 VDC discrete input.
51305890-275: Digital Input module, 32-channel, 120 VAC input revision.
51305896-100: Digital Output (DO) module, 16-channel, relay contact output.
51305896-200: Digital Output module, 16-channel, solid-state output revision.

Communication & Network Adapters

51309276-100: LCN Interface card, fiber-optic Local Control Network adapter.
51309276-150: LCN Interface card, dual-port redundant revision.
51401196-100: UCN Coax Interface Module, Universal Control Network node adapter.

Power Supply Modules

51196693-100: TDC 3000 cabinet power supply, 24 VDC regulated output.
51196693-200: Power supply module, redundant pair revision, hot-swap capable.

Sourcing Hard-to-Find & Obsolete TDC 3000 / TPS Parts

Honeywell formally transitioned support for TDC 3000 hardware to its lifecycle management program, with many module families classified as End-of-Production (EOP) or End-of-Life (EOL). DriveKNMS maintains a dedicated inventory of tested, pull-out, and refurbished TDC 3000 / TPS modules to support sites that cannot justify a full migration to Experion PKS or a third-party DCS platform.

Our sourcing capability covers: original Honeywell-manufactured modules with traceable part numbers; tested assemblies verified against OEM functional specifications; and matched revision-level pairs for redundant controller configurations. For sites operating under extended maintenance contracts or regulatory hold periods (common in nuclear and refinery environments), DriveKNMS provides documented test records and revision-level certification upon request. Minimum lead times for common SKUs are typically 3–10 business days; rare or high-demand modules are sourced through our global supplier network.

Quality Control for the TDC 3000 / TPS Range

TDC 3000 and TPS modules present specific test challenges due to their multi-layer backplane bus architecture and proprietary LCN/UCN communication protocols. DriveKNMS applies the following test procedures to all TDC 3000 / TPS inventory:

Power-on functional test using OEM-equivalent backplane fixtures, verifying regulated voltage rails within ±2% of specification. Communication bus integrity test: each LCN and UCN interface module is exercised through a loopback protocol emulator to confirm token-passing and data frame integrity. I/O channel verification: all analog input and output channels are tested at 0%, 25%, 50%, 75%, and 100% of rated range; digital I/O modules are tested for contact resistance and switching latency. Processor modules undergo a 48-hour burn-in cycle under simulated load conditions to screen for latent component failures. All modules are inspected for capacitor aging, corrosion on edge connectors, and backplane pin deformation prior to shipment.

For sourcing inquiries, revision-level matching, or bulk spare parts requirements for the Honeywell TDC 3000 / TPS platform: