HONEYWELL CC-TDOB11

Description

Product Overview
The HONEYWELL CC-TDOB11 is a high-density digital output module designed for Honeywell’s Experion PKS C300 control system. Part of the Series C I/O family, this advanced output interface provides reliable discrete control for final elements including solenoid valves, motor starters, indicating lights, and interposing relays in continuous process industries. The HONEYWELL CC-TDOB11 delivers deterministic output switching with comprehensive diagnostics essential for high-availability automation applications.

Technical Specifications
The HONEYWELL CC-TDOB11 features 16 discrete output channels configured as 8 source/sink pairs with common return architecture. Each output is rated 24 VDC at 0.5 A continuous with inrush capability up to 2 A for 50 ms. Output type is solid-state MOSFET with integrated flyback diode protection for inductive load switching. Channel-to-channel isolation is 500 VDC with 1500 VDC field-to-logic isolation. The HONEYWELL CC-TDOB11 includes per-channel open wire detection, short-circuit protection with automatic reset, and output state forced-checking capabilities. Communication is via the C300 Control Firewall (CFW) backplane interface with 10 ms typical I/O scan rate. Power consumption is 5 W from the 24 VDC field power supply plus 3 W from the 5 VDC backplane. The module occupies a single slot in Series C I/O racks and features front-panel LED indication for channel status, module health, and network communication. Operating temperature range is -40°C to +70°C with conformal coating standard.

Key Features and Advantages

• Advanced Diagnostics: The HONEYWELL CC-TDOB11 continuously monitors output load current, detecting open loads, short circuits, and partial failures before they affect process operation.

• Failsafe Configuration: Each channel can be independently programmed for failsafe state (on, off, or hold last state) upon communication loss or controller failure.

• Hot Swap Capability: The HONEYWELL CC-TDOB11 supports live insertion and removal without disturbing field outputs or requiring system power-down, minimizing process interruption during maintenance.

• Electronic Circuit Protection: Solid-state outputs eliminate mechanical relay wear, contact oxidation, and coil failure modes common in electromechanical alternatives.

• Time-Stamped Events: Output state changes are logged with 1 ms resolution for sequence of events recording and post-incident analysis.

Application Areas
The HONEYWELL CC-TDOB11 is extensively deployed in refinery emergency shutdown systems, where its high-diagnostic coverage and deterministic response satisfy SIL 2 requirements for final element control. A major Gulf Coast chemical complex recently standardized on the HONEYWELL CC-TDOB11 for over 2,000 on/off valve positions across multiple ethylene cracker expansions. The module is also widely specified in pharmaceutical clean-in-place systems requiring high cycle life and in LNG liquefaction trains controlling block valves for process isolation. Offshore production platforms utilize the HONEYWELL CC-TDOB11 for wellhead control panels where space constraints demand high channel density.

Competitive Comparison
Versus the Emerson FIO-401 and Siemens ET 200SP F-DQ, the HONEYWELL CC-TDOB11 offers superior per-channel current rating (0.5 A versus 0.3 A typical) without requiring external interposing relays for small solenoid loads. Its integrated load current monitoring provides diagnostic coverage unavailable in standard Emerson digital output modules without additional CHARM I/O hardware. The HONEYWELL CC-TDOB11 also features wider operating temperature range than the Yokogawa SDV531, making it suitable for unenclosed field-mounted enclosures in extreme climates. Unlike competitive modules requiring separate termination assemblies, the HONEYWELL CC-TDOB11 interfaces directly with Honeywell CC-TAOX11 termination bases, simplifying cabinet wiring and reducing spare parts inventory.

Selection Guidelines and Precautions

• Verify that your Experion PKS C300 firmware revision supports the HONEYWELL CC-TDOB11; systems prior to R410 may require Control Execution Environment updates.

• Confirm that field power supply capacity exceeds total connected load; 16 channels at 0.5 A requires minimum 8 A continuous capacity per module.

• The HONEYWELL CC-TDOB11 requires the corresponding CC-TAOX11 termination base for field wiring; order these companion products together to ensure mechanical compatibility.

• When driving inductive loads (relays, solenoids, contactors), external surge suppression may be required if internal flyback diodes prove insufficient for high-energy applications.

• The HONEYWELL CC-TDOB11 open wire detection requires minimum 5 mA load current; parallel connected indicating lights may mask fault conditions on lightly loaded channels.

• Order the HONEYWELL CC-TDOB11 with the CC-GONB11 optical network interface module for redundant communication paths in high-availability configurations.

• Ensure proper derating when operating above 60°C ambient; output current capacity reduces linearly to 0.3 A at 70°C maximum rated temperature.

• Perform periodic proof testing of HONEYWELL CC-TDOB11 diagnostic functions as part of SIL loop validation per IEC 61511 requirements.

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