Honeywell C300 Series Modules: CC-TDIL51 / CC-PDIL51 Digital Input Module

Technical Dossier

Product Details And Specifications

Honeywell C300 Series Technical Notes

The Honeywell C300 Controller Series is the core processing and I/O infrastructure of the Experion PKS (Process Knowledge System) distributed control system. Deployed across the global heavy process industries — including petrochemical complexes, nuclear power generation facilities, offshore oil platforms, and large-scale refinery operations — the C300 platform represents one of the most widely installed DCS architectures in continuous process environments. Its modular backplane design, redundant communication fabric, and deterministic scan cycle make it the reference standard for safety-critical loop control in facilities operating under IEC 61511 and ISA-84 frameworks. The CC-TDIL51 and CC-PDIL51 are Digital Input modules within this series, providing 32-channel 24 VDC discrete input capability for field device status monitoring, interlock logic, and process permissive circuits.

The Evolution of C300 Series Architecture

The C300 platform was introduced by Honeywell as the successor to the TDC 3000 and PlantScape systems, consolidating legacy HPM (High-Performance Process Manager) and LCN (Local Control Network) architectures into a unified FTE (Fault Tolerant Ethernet) backbone. Early C300 deployments (circa 2004–2008) relied on IOTA (I/O Termination Assembly) boards paired with Series C I/O modules communicating over the CEE (C300 Ethernet Expander) bus. Subsequent revisions introduced the CIOM-A (C300 I/O Module Adapter) architecture, enabling hot-swap capability and improving mean-time-to-repair metrics in live plant environments. The CC-TDIL51 represents the standard (non-redundant) digital input variant, while the CC-PDIL51 is its redundant-capable paired counterpart — both operating within the same IOTA footprint and sharing identical field wiring terminations. As Experion PKS R500 and later R511 firmware releases matured, backward compatibility with R400-era C300 modules was maintained, though certain diagnostic features require firmware alignment between the C300 controller and its I/O modules. Sites running legacy R210 or R301 Experion versions must validate module firmware compatibility before field replacement.

C300 Series Full Catalog & Functionalities (SKU List)

The following represents the verified C300 Series module catalog, organized by functional category. Each SKU is a discrete, independently orderable line item within the Honeywell Experion PKS spare parts ecosystem.

Digital Input Modules

• CC-TDIL51: 32-ch 24VDC digital input, standard (non-redundant) IOTA mount
• CC-PDIL51: 32-ch 24VDC digital input, redundancy-capable paired module
• CC-TDIL01: 32-ch 24VDC digital input, legacy IOTA-A termination assembly variant

Digital Output Modules

• CC-TDOB01: 32-ch 24VDC digital output, standard non-isolated, IOTA-B mount
• CC-PDOB01: 32-ch 24VDC digital output, redundant-capable paired variant
• CC-TDOB51: 32-ch 24VDC digital output, Series 51 IOTA architecture

Analog Input Modules

• CC-TAIX01: 8-ch analog input, 4–20 mA / 1–5 VDC, HART-enabled, IOTA-A
• CC-PAIX01: 8-ch analog input, redundant-capable, HART pass-through
• CC-TAIX51: 8-ch analog input, Series 51 IOTA, extended diagnostics
• CC-PAIX51: 8-ch analog input, redundant, Series 51 IOTA, HART-enabled

Analog Output Modules

• CC-TAOX01: 8-ch analog output, 4–20 mA, IOTA-A termination
• CC-PAOX01: 8-ch analog output, redundant-capable, IOTA-A
• CC-TAOX51: 8-ch analog output, Series 51 IOTA, loop-powered

Controller & Communication Modules

• CC-PCF901: C300 Controller module, primary FTE node, dual-redundant capable
• CC-TCF901: C300 Controller module, standard (non-redundant) FTE node
• CC-SCMB01: Series C Module Bus adapter, backplane communication interface
• CC-PCNT01: Pulse/frequency counter input module, 4-ch, 24VDC
• CC-TCNT01: Pulse counter input, standard variant, IOTA-A mount

Quality Control for the C300 Series Range

C300 Series modules present specific test challenges due to their integrated backplane bus logic, FTE communication stack, and HART multiplexing circuitry. DriveKNMS applies the following verification protocol to all C300 inventory prior to dispatch:

• Backplane Bus Integrity Test: Each module is seated in a live C300 IOTA test rack and polled via Experion Builder to confirm CEE bus enumeration and module health status (green LED confirmation).
• Channel-Level I/O Verification: For digital input modules (CC-TDIL51 / CC-PDIL51), all 32 channels are individually stimulated at 24 VDC and confirmed via Experion point detail display. For analog modules, 4–20 mA loop injection is applied at 0%, 25%, 50%, 75%, and 100% of span.
• HART Communication Validation: Analog I/O modules with HART capability are tested using a HART communicator to confirm pass-through integrity to the C300 controller's HART multiplexer.
• Firmware Revision Logging: Module firmware version is read via Experion Station and recorded on the test certificate accompanying each shipment.
• Redundancy Switchover Test: For paired modules (CC-P* prefix), active/standby switchover is induced and confirmed with zero process value deviation during transition.