Description
The Honeywell TK-IDD321 is a high-density, 32-channel discrete input module engineered specifically for Honeywell Experion PKS and modular control architectures (such as C200/C300 controller environments). It is designed to process 24 VDC digital signals from field devices like proximity switches, pushbuttons, and auxiliary relay contacts, ensuring reliable state detection and fast signal acquisition in demanding industrial automation applications. Below is the technical datasheet outlining ten core parameter specifications for this unit:
| Parameter | Specification Details |
| Manufacturer | Honeywell International Inc. |
| Model Designation | TK-IDD321 (TC-IDD321 variant compatible) |
| Product Type | 32-Point Discrete Input Module |
| Number of Inputs | 32 channels (grouped in 16 points per common) |
| Nominal Input Voltage | 24 V DC |
| On-State Voltage Range | 10 VDC to 31.2 VDC (at 60°C all channels) |
| On-State Current (Min) | 2.0 mA |
| Off-State Voltage / Current (Max) | 5.0 V max / 1.5 mA max |
| Power Dissipation | 6.1 W maximum |
| Item Weight | Approximately 0.24 kg (0.44 lbs) |
📖 Product Usage Instructions
- 🛠️ Power Isolation: Always ensure that system rack power supplies and external loop feeds are completely de-energized and locked out before installing, wiring, or removing the discrete input module.
- 🔌 Secure Insertion: Align the module card carefully within the designated chassis slot, pressing firmly to engage the backplane pins and matching 36-position terminal blocks (such as TC-TBCH) securely.
- 🔧 Wiring Verification: Connect field wiring to appropriate terminal blocks, ensuring proper separation between high-voltage lines and 24 VDC digital input channels to minimize noise coupling.
- 🧪 Status Monitoring: Observe front-panel status LED indicators and Experion controller diagnostic logs to confirm proper channel state switching, loop continuity, and normal communication health.
❓ Frequently Asked Questions (Q&A)
- Q: What is the primary function of the Honeywell TK-IDD321 module?
A: It serves as a high-density 32-channel discrete input card designed to acquire and condition 24 VDC digital signals from industrial field devices.
- Q: How are the input channels grouped on this module?
A: The 32 channels are arranged in two independent groups of 16 points per common, allowing flexible power grouping for field circuits.
- Q: What terminal block type is recommended for wiring connections?
A: It is designed to interface seamlessly with standard 36-position terminal blocks like the TC-TBCH for reliable signal termination.
🔍 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-IDD321 Standard Discrete Input Module (Base version)
- Honeywell CC-PDIL01 Digital Input Module (Series C)
- Honeywell CC-TD0B11 Digital Output IOTA Redundant
- Honeywell CC-PAIH01 Analog Input Module with HART
- Honeywell CC-PAOX01 Analog Output Module
- 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
