Honeywell TC-PCICO1K TotalPlant Solution (TPS) Process Control I/O Modules

Technical Dossier

Product Details And Specifications

Honeywell TC-PCI Series Technical Notes

The Honeywell TC-PCI series represents a core component family within the TotalPlant Solution (TPS) Distributed Control System (DCS) architecture — one of the most widely deployed process automation platforms in global heavy industry. Installations span petrochemical complexes, crude oil refineries, nuclear power generation facilities, LNG terminals, and large-scale chemical manufacturing plants across North America, the Middle East, and Asia-Pacific. The TC-PCI designation covers Process Control Interface modules that serve as the signal conditioning and I/O termination layer between field instrumentation and the TPS control network. These modules are engineered for continuous 24/7 operation in Class I, Division 2 hazardous environments and conform to IEC 61511 functional safety requirements at the system level.

The Evolution of TC-PCI Series Architecture

The TC-PCI module family was introduced as part of Honeywell's TotalPlant Solution platform in the mid-1990s, succeeding the earlier TDC 3000 I/O subsystem. The architecture is built around a Universal Control Network (UCN) and Local Control Network (LCN) topology, where TC-PCI modules interface directly with the Process Manager (PM) and Advanced Process Manager (APM) controllers via a dedicated I/O Link bus. Early revisions used parallel backplane communication; later hardware revisions introduced enhanced diagnostics and HART pass-through capability for smart field devices. As Honeywell transitioned customers toward the Experion PKS platform (introduced circa 2002), the TC-PCI series entered a managed lifecycle phase. Experion's C300 controller and EHPM modules provide functional equivalents, but the TC-PCI hardware remains in active service at thousands of legacy TPS installations where full platform migration is economically or operationally impractical. Compatibility between TC-PCI revisions requires attention to firmware version alignment with the PM/APM controller revision and the UCN interface card generation. Mixing hardware revisions without firmware validation is a documented source of intermittent I/O faults in legacy TPS systems.

TC-PCI Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced modules within the Honeywell TPS TC-PCI and associated TPS I/O module family. Modules are classified by functional category:

Analog Input (AI) Modules

• TC-PCICO1K: 40-channel analog input module, 4–20 mA HART-compatible, for Process Manager I/O subsystem
• TC-PCICO2K: 40-channel analog input module, high-density variant with extended diagnostics
• TC-FPCIO1K: Field-mounted analog I/O module, 20-channel, intrinsically safe barrier interface
• TC-FPCIO2K: Field-mounted analog I/O, 20-channel, non-incendive rated, extended temperature range
• TC-IOLI01: I/O Link interface card, single-channel, for PM to I/O cabinet interconnect

Analog Output (AO) Modules

• TC-PCICO3K: 20-channel analog output module, 4–20 mA, loop-powered, PM-compatible
• TC-PCICO4K: 20-channel analog output, high-resolution 16-bit DAC, HART pass-through

Digital Input (DI) Modules

• TC-PDICB1K: 120 VAC digital input module, 32-channel, optically isolated
• TC-PDICB2K: 24 VDC digital input module, 32-channel, sink/source configurable
• TC-PDICB3K: 48 VDC digital input module, 32-channel, high-voltage field interface
• TC-PDIC01: Digital input concentrator card, 64-channel multiplexed, for high-density DI applications

Digital Output (DO) Modules

• TC-PDOB1K: 120 VAC digital output module, 16-channel, relay-isolated, 2A per channel
• TC-PDOB2K: 24 VDC digital output module, 32-channel, solid-state transistor output
• TC-PDOB3K: Relay output module, 16-channel, DPDT contacts, 5A rated

Controller & Communication Modules

• TC-CCR01: Process Manager controller card, primary CPU, UCN network interface integrated
• TC-CCR02: Advanced Process Manager (APM) controller card, enhanced floating-point processing
• TC-RPCXX1: Redundant controller pair interface module, automatic failover, bumpless transfer
• TC-IOLI02: I/O Link interface, dual-channel redundant, for critical process loops
• TC-PCNI01: Process Control Network Interface card, UCN to LCN gateway module

Power Supply Modules

• TC-PRS021: 24 VDC power supply module, 10A, redundancy-capable, for I/O cabinet rail
• TC-PRS022: Redundant power supply module, hot-swap capable, with load-sharing diode assembly

Quality Control for the TC-PCI Series Range

TC-PCI modules present specific test challenges due to their multi-layer backplane bus architecture and UCN communication protocol dependency. DriveKNMS applies the following test protocol to all TC-PCI series modules prior to dispatch: (1) Visual inspection for capacitor degradation, PCB corrosion, and connector pin integrity — common failure modes in modules with 15+ years of service. (2) Powered bench test using a TPS-compatible I/O Link simulator to verify channel-level signal conditioning accuracy across the full 4–20 mA range. (3) HART communication verification on AI/AO modules using a HART communicator to confirm pass-through integrity. (4) Digital I/O functional test: all input channels verified for threshold switching; all output channels verified for drive capability and isolation resistance. (5) Firmware revision identification and documentation, provided with each unit to ensure compatibility verification by the end-user's DCS engineer. Modules that fail any stage of this protocol are quarantined and not offered for sale.