Description
The Honeywell TK-ODD321 is a high-density, 32-channel discrete output module engineered specifically for Honeywell Experion PKS and modular control architectures (such as C200/C300 controller systems). Featuring conformal coating for enhanced durability in harsh industrial environments, it delivers reliable 24 VDC switching control for field actuators such as solenoid valves, indicators, and motor starters. Below is the technical datasheet outlining ten core parameter specifications for this unit:
| Parameter | Specification Details |
| Manufacturer | Honeywell International Inc. |
| Model Designation | TK-ODD321 (Conformally coated variant of TC-ODD321) |
| Product Type | 32-Point Discrete Output Module |
| Number of Outputs | 32 channels (arranged in 2 groups of 16 points per common) |
| Output Voltage Range | 10 VDC to 31.2 VDC @ 50°C; 10 VDC to 28 VDC @ 60°C |
| Output Current Rating | 0.5 A max per point @ 50°C (0.35 A max @ 60°C) |
| Minimum On-State Load | 3.0 mA per output |
| Power Dissipation | 6.1 W maximum |
| Terminal Blocks | Compatible with 36-position terminal blocks (e.g., TC-TBCH) |
| Item Weight | Approximately 0.8 kg (1.8 lbs) |
📖 Product Usage Instructions
- 🛠️ Power Isolation: Always ensure that system rack power supplies and external load feeds are completely de-energized and locked out before installing, wiring, or removing the discrete output module.
- 🔌 Secure Insertion: Align the module card carefully within the designated controller chassis slot, pressing evenly to backplane connectors and matching 36-position terminal blocks (such as TC-TBCH) securely.
- 🔧 Fusing & Protection: Since internal reverse polarity protection or onboard fusing is limited, incorporate external protective fusing or a fused interface module (IFM) to safeguard output channels from overloads.
- 🧪 Status Monitoring: Observe front-panel status LED indicators and Experion controller diagnostic software logs to verify proper channel state switching, loop continuity, and fault-free operation.
❓ Frequently Asked Questions (Q&A)
- Q: What is the primary function of the Honeywell TK-ODD321 module?
A: It serves as a high-density 32-channel discrete output card designed to drive 24 VDC industrial field loads safely within Experion PKS control architectures.
- Q: How are the output channels organized on this module?
A: The 32 output channels are split into two independent banks of 16 points per common, allowing flexible power partitioning.
- Q: What does the “TK-” prefix signify compared to “TC-“?
A: The “TK-” prefix typically indicates that the module features conformal coating, making it specially hardened for use in corrosive or harsh industrial environments.
🔍 Recommended Alternative Models & Series
To support your industrial control system maintenance, spare parts management, and network expansions, here are ten alternative modules and series from Honeywell:
- Honeywell TC-ODD321 Standard Discrete Output Module (Uncoated base version)
- Honeywell CC-PD0B01 Digital Output Module (Series C)
- Honeywell TK-IDD321 32-Point Discrete Input Module
- Honeywell CC-TD0B11 Digital Output IOTA Redundant
- Honeywell CC-PAIH01 Analog Input Module with HART
- Honeywell C300 Controller Module
- Honeywell 51198651-100 Power Supply Module
- Honeywell TC-CCR013 ControlNet Interface Module
- Honeywell Safety Manager LSM Module
- Honeywell ControlEdge PLC Series




