Product Overview

The Honeywell CC-TDOB01 (PN: 51308371-175) is a 32-channel Digital Output IOTA for Experion PKS Series C. It provides a bussed 24 VDC output interface to drive solenoid valves, interposing relays, and status indicators.

This IOTA features fuse-less short-circuit protection, automatically disabling a faulted channel and triggering a “Soft Failure” alarm in the DCS, which can be reset after clearing the fault without hardware intervention.

Technical Data

Key Features:

• Intelligent Over-Current Handling: Faulted channels enter Manual mode automatically.

• Bussed Power Distribution: Shared return; supports internal or external 24 V supply.

• G3 Coating: Resistant to harsh environments (e.g., H₂S, Cl₂).

• Diagnostics: Real-time feedback to DCS for each output loop.

Typical Applications

• Solenoid Valve Control: Pneumatic valves for process flow or safety isolation.

• Indicator & Alarms: Control panel lamps, horns, or beacons.

• Relay Interfacing: Drive interposing relays for high-power motors.

• Batch Processing: Manage discrete sequences in pharmaceutical or food production.

FAQ

Q1: Difference between CC-TDOB01 and CC-TDOB11?
A1: CC-TDOB01 is non-redundant; CC-TDOB11 supports redundant DO module pairs for high availability.

Q2: Can this board handle 120 V AC signals?
A2: No, it is strictly for 24 V DC. Use relay-based modules like CC-SDOR01 for AC switching.

Q3: How to reset a channel after a short circuit?
A3: Repair the field wiring, then reset the Soft Failure alarm in Experion software; no fuse replacement is needed.