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
| Feature | Specification |
|---|---|
| Model | CC-TDOB01 |
| Part Number | 51308371-175 |
Key Features:
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Intelligent Over-Current Handling: Faulted channels enter Manual mode automatically.
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Bussed Power Distribution: Shared return; supports internal or external 24 V supply.
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G3 Coating: Resistant to harsh environments (e.g., H₂S, Cl₂).
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Diagnostics: Real-time feedback to DCS for each output loop.
Typical Applications
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Solenoid Valve Control: Pneumatic valves for process flow or safety isolation.
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Indicator & Alarms: Control panel lamps, horns, or beacons.
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Relay Interfacing: Drive interposing relays for high-power motors.
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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.
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