Honeywell 8C-TDIL11 51306858-175 Digital Input Module

The Honeywell 8C-TDIL11 (Part Number: 51306858-175) is a rugged and high-density digital input module used within Honeywell’s Experion PKS control systems, particularly the C300 controller platform. It is designed to monitor and collect 32 discrete field input signals from on-site devices such as contact switches, safety interlocks, proximity sensors, and other binary output equipment.

Tailored for critical industrial applications, the module operates using a 24V DC nominal signal and offers channel-level isolation to ensure protection and signal integrity across harsh environments. Each input point is clearly monitored through diagnostic features and LED indicators for easy identification of real-time signal states. The 8C-TDIL11 is widely implemented in continuous process industries where operational reliability and signal accuracy are essential.

Product Specifications

Applications

The Honeywell 8C-TDIL11 module is a versatile solution used across multiple industrial sectors:

• Oil & Gas Refineries – Interfaces with limit switches and valve feedback devices in hazardous zones.

• Chemical Processing Plants – Tracks binary sensor signals in reaction and batch units.

• Metals & Mining – Captures operational status of heavy equipment, conveyors, and safety systems.

• Food & Beverage Industry – Monitors machine door sensors, emergency buttons, and bin full indicators.

• Power Plants – Used for turbine control, relay status inputs, and protection system interfacing.

• Pharmaceutical Manufacturing – Ensures precision in automated batch controls and cleanroom applications.

Product Advantages

• High Channel Density: Supports up to 32 inputs, helping reduce rack space and simplify installation.

• Robust Signal Integrity: Built-in isolation and diagnostics protect against electrical noise and signal failures.

• System-Wide Integration: Seamlessly connects with Honeywell’s Experion PKS architecture, minimizing engineering efforts.

• Fault Detection: Features diagnostics for channel health, allowing proactive maintenance.

• Redundant Compatibility: Works in redundant setups to support uninterrupted operation.

• Compact Design: Space-saving format suitable for large-scale I/O deployments.

• Field Troubleshooting Support: LED status indicators for each channel enable quick issue identification without special tools.

Frequently Asked Questions (FAQ)

1. Q: What is the maximum number of inputs supported by the 8C-TDIL11?

   A: The module supports 32 discrete digital inputs.

2. Q: What type of signal is required for input?

   A: It requires a nominal 24V DC signal for operation.

3. Q: Can this module detect wiring faults like shorts or opens?

   A: Yes, it has internal diagnostic capabilities for fault detection.

4. Q: Is the module hot-swappable?

   A: Yes, in systems designed with redundancy and appropriate safety configurations.

5. Q: Are channel status indicators available?

   A: Yes, each channel has an associated LED for signal status display.

6. Q: Can this module be used in a hazardous environment?

   A: Yes, provided the entire system meets the necessary ATEX or safety standards.

7. Q: How is the module mounted in a system?

   A: It is installed on a DIN rail within a compatible I/O chassis.

8. Q: What is the minimum operating temperature of the module?

   A: The minimum operating temperature is 0°C.

9. Q: Is it compatible with older Honeywell controllers?

   A: It is designed for use with the C300 controller and newer Experion PKS environments.

10. Q: How much does the module weigh?

    A: 0.5 kg.