Description

The Honeywell CC-TDI110 is a non-redundant, 9-inch Input Output Termination Assembly (IOTA) designed for the Experion Process Knowledge System (PKS) Series C architecture. It provides the field termination infrastructure and signal conditioning interface required to connect 120 VAC RMS or 125 VDC discrete field inputs directly to the Honeywell CC-PDIH01 Digital Input High Voltage I/O Module (IOM).

Functioning as a critical hardware interface in process control and monitoring systems, the CC-TDI110 transfers high-voltage field signals into logic-level communications for the supervisory system. The assembly accommodates 32 digital input channels and utilizes optical isolation technology to establish optical galvanic isolation between field circuitry and logic common. This architectural isolation protects sensitive control electronics from field-side voltage transients, ground loops, and electrical noise.

Designed for high availability and operational integrity in industrial processing plants, the Honeywell CC-TDI110 supports extensive internal diagnostic routines executed through the paired CC-PDIH01 module. The hardware assembly features individual channel filtering and configurable direct or reverse input logic to support various field sensor configurations and switch contact monitoring requirements.

Features

• Serves as a 9-inch non-redundant field termination assembly for 32-channel high-voltage discrete input processing.
• Directly interfaces with the Honeywell CC-PDIH01 Digital Input High Voltage module within Experion Series C racks.
• Dual-rating capability accepts both 120 VAC RMS (47–63 Hz) and 125 VDC field signals across a single assembly.
• Optical galvanic isolation provides 1500 VAC RMS or ±1500 VDC isolation between field wiring and logic common.
• Executes high-integrity internal diagnostics to verify channel status and maintain signal transmission accuracy.
• Supports configurable direct and reverse input modes to adapt to diverse field contact behaviors.

Applications

• Discrete Alarm & Status Monitoring: Captures high-voltage motor contactor status, trip switch signals, and process limit switches.
• Safety & Interlock Feedback: Interfacing high-voltage field auxiliary contacts with control logic for plant-wide interlocking.
• Substation & Electrical Balance of Plant: Monitoring 125 VDC control circuit breakers and breaker status contacts in electrical cabinets.
• Process Equipment Monitoring: Direct signal conditioning for valves, pumps, and fans operating on 120 VAC control loops.

Technical Specifications

General

Electrical & Signal Ratings

Performance & Isolation

Mechanical

Installation Guidelines

1. Inspect the Honeywell CC-TDI110 assembly for physical integrity before mounting.
2. Ensure power to the target Series C cabinet channel is turned off prior to physical installation.
3. Securely mount the 9-inch IOTA onto the standard Series C mounting channel using proper mechanical alignment.
4. Route high-voltage AC/DC field wiring separately from low-voltage DC logic and communication lines to minimize noise coupling.
5. Connect field input conductors to designated channel screw terminals, observing polarity guidelines when using 125 VDC inputs.
6. Verify earth grounding connections on the Series C carrier to ensure proper shield grounding and optical isolation performance.
7. Align and seat the CC-PDIH01 Digital Input High Voltage module firmly onto the IOTA interface connectors until latched.

Configuration & Commissioning

• Software Assignment: Assign the CC-TDI110 IOTA and corresponding CC-PDIH01 module in Control Builder under the appropriate Series C C300 controller or I/O link tree.
• Logic Mode Selection: Configure channel logic options (direct or reverse) within Control Builder software to align with field switch contact states (normally open vs. normally closed).
• Pre-Commissioning Voltage Check: Measure incoming field loop voltages with a multimeter prior to commissioning to ensure AC signals fall within 90–132 VAC RMS or DC signals fall within 100–138 VDC.
• Channel Diagnostics Verification: Monitor Experion system alarm summaries during startup to confirm proper channel initialization and verify optical isolation logic states without field faults.