Product Overview
The Honeywell 8C-TDIL01 51306856-175 is a high-density digital input module designed for the Honeywell Experion PKS and C300 controller platforms, functioning as an Input/Output Termination Assembly (IOTA) within the Series 8 I/O family. As a critical discrete signal acquisition component, the Honeywell 8C-TDIL01 51306856-175 serves as the field interface for monitoring binary process states, converting 24 VDC contact closures and switch signals into controller-readable data streams. The “8C” prefix designates the G3 conformal coating variant, providing enhanced protection against moisture, dust, and chemical contaminants in demanding industrial environments.
The Honeywell 8C-TDIL01 51306856-175 is specifically engineered for Sequence of Events (SOE) applications, delivering 1 millisecond event resolution across 32 input channels . This high-speed timestamping capability enables the module to accurately record the order and timing of discrete events, a critical requirement for root-cause analysis in emergency shutdown systems, interlock verification, and process upset investigations. The module operates in conjunction with the C300 controller architecture, communicating discrete field states across the Series 8 backplane network.
With optical isolation rated at 1500 VAC between field inputs and internal logic, the Honeywell 8C-TDIL01 51306856-175 prevents ground loop propagation and protects the controller from field-induced electrical transients . The module also incorporates line fault diagnostics that continuously monitor input circuit continuity, detecting open-circuit field wiring and generating soft-failure alerts without interrupting running control logic . This combination of high-speed event capture, robust isolation, and comprehensive diagnostics makes the Honeywell 8C-TDIL01 51306856-175 a foundational component for discrete monitoring in safety-related and high-availability process control applications.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | Honeywell 8C-TDIL01 51306856-175 |
| Manufacturer | Honeywell International Inc. |
| Product Type | Digital Input IOTA (Sequence of Events) |
| Product Series | Honeywell Series 8 I/O / Experion PKS |
| Compatible System | Experion PKS, C300 Controller, Series 8 I/O infrastructure |
| Input Channels | 32 digital input points |
| Input Signal Type | 24 VDC discrete (18–30 VDC operating range) |
| Input Current | Maximum 6 mA per channel |
| SOE Resolution | 1 millisecond |
| Response Time | < 8 ms (typical) |
| Isolation | Optical, 1500 VAC channel-to-system |
| Line Fault Detection | Open-circuit wire break detection with soft-failure alert |
| Power Consumption | Approximately 190 mA @ 24 VDC |
| Heat Dissipation | Approximately 4.22 W |
| Operating Temperature | 0°C to +60°C (cabinet interior) |
| Storage Temperature | -40°C to +85°C |
| Protection | Conformal Coated (G3, “8C” prefix variant) |
| Mounting | Series 8 IOTA rack, vertical orientation |
| Hot Swap | Supported (Remove and Insert Under Power) |
| Certifications | CE, UL, CSA |
