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Product Introduction
The Honeywell 10106/2/1 Digital Input Module is a rugged and high-reliability input interface used in demanding industrial control environments. This module is engineered to capture and transmit discrete (on/off) signals from field devices to a central controller. Its standout feature is built-in redundancy support, ensuring signal reliability in mission-critical applications such as emergency shutdown systems, safety interlocks, and plant-wide digital monitoring.
Designed for high signal integrity and minimal latency, the 10106/2/1 is part of Honeywell’s robust legacy I/O modules used in TDC 3000 and other distributed control systems. With support for 24 VDC field signals and per-channel optical isolation, it ensures clean signal acquisition and protects internal electronics from electrical transients or wiring faults. Its durable enclosure and compact design make it suitable for control cabinets where space efficiency and longevity are essential.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Name | Honeywell 10106/2/1 Digital Input Module |
| Module Type | Redundant Digital Input Module |
| Number of Channels | 16 Digital Inputs |
| Input Type | Dry Contact or Voltage-Based Digital Signals |
| Nominal Input Voltage | 24 VDC |
| Input Voltage Range | 18–30 VDC |
| Input Current (Nominal) | ~7 mA per channel |
| Input Isolation | Optical isolation per channel |
| Redundancy Support | Yes, redundant input channels supported |
| Diagnostics | Individual channel LEDs, fault detection |
| Update Rate / Scan Time | <5 milliseconds |
| Power Supply Source | Backplane power (via Honeywell control system) |
| Operating Temperature Range | 0°C to +60°C (32°F to 140°F) |
| Storage Temperature Range | -40°C to +85°C (-40°F to 185°F) |
| Relative Humidity | 5% to 95% RH, non-condensing |
| Compliance & Standards | CE, UL, RoHS, IEC 61131-2 compliant |
| Mounting | DIN rail or chassis/rack mounting |
| Dimensions (H x W x D) | 25 x 140 x 191 mm |
| Weight | 0.118 kg |
Applications
The Honeywell 10106/2/1 is widely used in control systems that require enhanced reliability and dual-signal integrity. Typical applications include:
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Emergency Shutdown Systems (ESD): Ensures redundancy in safety-critical digital signals.
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Process Automation: Capturing binary signals such as limit switches, push buttons, and alarms.
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Power Plants: Monitoring turbine status, breaker interlocks, and trip signals.
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Petrochemical Facilities: Hazardous environment digital monitoring with enhanced fault tolerance.
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Wastewater Treatment Plants: Reliable input from level switches and flow indicators.
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Manufacturing Automation: Redundant monitoring of machine operations and conveyor logic.
Key Advantages
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Built-In Redundancy: Supports signal integrity by allowing dual-channel redundancy—ideal for safety and fault-tolerant systems.
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Fast Response Time: <5ms update rate for high-speed digital acquisition.
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Individual Channel Diagnostics: Integrated LED indicators simplify maintenance and fault isolation.
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Industrial-Grade Durability: Designed for 24/7 operation in harsh environments.
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Isolation & Protection: Each channel is optically isolated to reduce signal interference and prevent fault propagation.
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Compact Form Factor: Saves panel space while offering 16 fully isolated inputs.
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Direct Integration: Seamlessly integrates with Honeywell’s legacy DCS platforms, including TDC 3000.
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Wide Operating Range: Suitable for extreme environmental conditions with robust thermal and electrical tolerances.
Frequently Asked Questions (FAQ)
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What makes the 10106/2/1 different from standard input modules?
It features redundancy support, allowing parallel connection of dual input signals for critical applications. -
Is the module compatible with Experion PKS?
Primarily designed for legacy systems like TDC 3000, but may be used with Experion systems with appropriate I/O interfaces. -
Does it support hot swapping?
No, the module should only be inserted or removed with the power turned off, unless your system explicitly supports hot swap. -
Can this module detect line breaks or input failures?
Yes, it includes diagnostic features to detect open circuits or faults per input channel. -
What are the LED indicators used for?
Each channel has a dedicated LED for status indication, assisting with rapid fault detection. -
What input devices are typically connected?
It accepts signals from limit switches, pressure switches, proximity sensors, and other binary field devices. -
How is redundancy achieved?
By allowing two input paths per monitored point, reducing the risk of signal loss due to wiring faults. -
Does the module require a separate power source?
No, it draws operational power from the control system backplane. -
Can it be used in hazardous areas?
It can be used in control panels within hazardous zones when installed in certified enclosures and compliant with site requirements. -
Is the module firmware-upgradable?
As a hardware-centric I/O module, firmware updates are typically not required or user-accessible.
Related Models in the Same Series
| Model Number | Description | Channels | Voltage Range | Special Feature |
|---|---|---|---|---|
| 10104/2/1 | Standard Digital Input Module | 16 | 24 VDC | Basic DI functionality |
| 10105/2/1 | High-Density Digital Input Module | 32 | 24 VDC | Compact, space-saving |
| 10103/2/1 | Low Voltage Digital Input Module | 16 | 5–15 VDC | TTL-compatible |
| 10102/2/1 | Relay-Isolated Digital Input | 16 | 24–48 VDC | Enhanced isolation protection |
| 10104/2/2 | Digital Input with Noise Immunity | 16 | 24 VDC | Enhanced filtering circuitry |
| 10201/2/1 | Mixed Digital Input/Output Module | 8 DI / 8 DO | 24 VDC | Flexible I/O for mixed use |
Popular Honeywell Models in the Same Product Family
| Model Number | Module Type | Description | Channels | System Compatibility |
|---|---|---|---|---|
| CC-PDIL01 | Digital Input | High-density DI for Experion | 32 DI | Experion PKS |
| CC-TDIL01 | Redundant Digital Input | Redundant DI module for safety systems | 16 DI | C300 Controller |
| CC-PDOB01 | Digital Output | Relay-based DO module | 16 DO | Experion Process Stations |
| CC-PAIH01 | Analog Input | High-speed AI module | 8 AI | Universal I/O architecture |
| MC-PD1X02 | Mixed Digital I/O | Compact module with flexible I/O | 8 DI / 8 DO | Modular I/O designs |
| CC-TAIX01 | Analog Input | Extended range analog input | 16 AI | Industrial Process Systems |
