Honeywell MC-PHAO01 51403476-150: Experion PKS PMIO Analog Output Module - MC-PDIX02 51304485-150

Technical Dossier

Product Details And Specifications

Honeywell MC-P Series Technical Notes

The Honeywell MC-P Series — formally part of the Experion PKS (Process Knowledge System) and legacy TDC 3000 platform — represents one of the most widely deployed distributed control system (DCS) I/O architectures in global heavy industry. Installations span petrochemical complexes, nuclear power generation facilities, offshore oil platforms, crude oil refineries, and large-scale chemical manufacturing plants across North America, the Middle East, and Asia-Pacific. The MC-P module family operates within the Process Manager I/O (PMIO) subsystem, interfacing field instruments directly to the Experion PKS controller network via a high-integrity backplane bus. The MC-PHAO01 (P/N 51403476-150) is a high-density analog output module rated for 4–20 mA HART-capable field device control, used in final control element loops including control valves, variable speed drives, and positioners.

The Evolution of MC-P Series Architecture

The MC-P module lineage traces to Honeywell's TDC 3000 platform introduced in the 1980s, which established the foundational PMIO backplane communication protocol. With the transition to Experion PKS R100–R500 releases (2000s–2020s), Honeywell maintained backward compatibility across the MC-P I/O family, allowing legacy TDC 3000 modules to coexist with modern Experion controllers in hybrid migration architectures. Key architectural milestones include the introduction of HART pass-through capability in second-generation analog modules, the shift from parallel to serial backplane communication in the PMIO chassis, and the integration of FTA (Field Termination Assembly) redundancy schemes. As of 2026, the MC-P series is in a mature/end-of-production lifecycle phase. Honeywell has transitioned new projects to the EPKS Series C / Experion LS platform, but the installed base of MC-P hardware in operating plants remains extensive, making long-term spare parts availability a critical operational requirement for asset owners.

MC-P Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked modules within the Honeywell Experion PKS / TDC 3000 MC-P PMIO family. Modules are classified by functional category:

Analog Output Modules

• MC-PHAO01 51403476-150: 8-channel 4–20 mA HART analog output, PMIO backplane, FTA-compatible
• MC-PHAO02 51403477-150: 16-channel analog output module, extended density AO for high loop-count applications

Analog Input Modules

• MC-PHAI01 51304453-150: 8-channel 4–20 mA HART analog input, standard PMIO AI module
• MC-PHAI02 51304454-150: 16-channel HART analog input, high-density field signal acquisition
• MC-PHAI03 51304455-150: Isolated analog input module for high-noise field environments

Digital Input Modules

• MC-PDIX02 51304485-150: 32-channel 24 VDC digital input, dry contact and wet contact compatible
• MC-PDIY22 51304441-150: 16-channel 120 VAC digital input module for high-voltage field signals
• MC-PDIX01 51304484-150: 16-channel 24 VDC digital input, standard PMIO DI module

Digital Output Modules

• MC-PDOX01 51304459-150: 16-channel 24 VDC digital output, solid-state relay type
• MC-PDOY22 51304460-150: 16-channel 120 VAC digital output for solenoid valve and motor starter control
• MC-PDOX02 51304461-150: 32-channel 24 VDC digital output, high-density DO for large I/O count panels

Controller / CPU Modules

• MC-PCNT03 51304362-150: Process Manager controller module, C300 architecture, dual-redundancy capable
• MC-PCNT02 51304361-150: Process Manager controller, earlier generation, compatible with R200–R400 Experion releases

Power Supply Modules

• MC-PPWR02 51304443-150: PMIO chassis power supply, 24 VDC output, redundant pair configuration
• MC-PPWR01 51304442-150: Standard PMIO power supply module, single-slot form factor

Communication / Adapter Modules

• MC-PLAM02 51304417-150: Local Area Module, PMIO-to-Experion network bridge, fiber-optic interface
• MC-PLAM01 51304416-150: Local Area Module, copper Ethernet interface variant for short-distance PMIO clusters