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Product Introduction
The Honeywell 8C-TAID51 is a high-reliability digital input module engineered for use within Honeywell’s Experion Process Knowledge System (PKS) and specifically compatible with the C300 controller environment. It is a part of the Series C I/O suite, offering high-density, high-performance input capabilities for industrial automation and process control applications.
Designed to collect and interpret discrete (binary) signals from field devices such as push buttons, limit switches, proximity sensors, and relay contacts, the 8C-TAID51 supports both dry contact and externally powered inputs. It is highly valued for its robust fault detection, quick response time, and seamless integration into large-scale control systems.
With features such as hot-swap capability, built-in diagnostics, channel-by-channel status monitoring, and electrically isolated inputs, the 8C-TAID51 is an essential component in mission-critical applications where reliability and accuracy are paramount.
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | 8C-TAID51 |
| Product Type | Digital Input Module |
| Part Number | 51307070-175 |
| Number of Channels | 16 isolated digital input channels |
| Input Voltage Range | 18 to 30 VDC (nominal 24 VDC) |
| Input Type | Sinking (Positive Logic) |
| Input Impedance | >10 kΩ |
| Input Threshold Voltage | Logic High: >11 V, Logic Low: <5 V |
| Input Current | 2 mA typical @ 24 VDC |
| Isolation | Channel-to-system and channel-to-channel optical isolation |
| Diagnostics | Open wire detection, LED indicators, fault reporting |
| Update Time | 10 ms per channel |
| Power Consumption | ≤ 5 W (typical) |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Humidity Range | 5% to 95% RH non-condensing |
| Mounting | Universal IO Backplane (Series C form factor) |
| Certifications | CE, UL, FM, CSA, Class 1 Div 2 (in compliant systems) |
| Dimensions (W x H x D) | 61 x 153 x 145 mm |
| Weight | 0.3 kg |
Product Applications
The 8C-TAID51 module finds widespread use in a range of industrial automation environments, including but not limited to:
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Petrochemical Plants: Monitoring status of emergency shutdown buttons, interlock systems, valve position switches.
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Power Generation Facilities: Detecting contactor states, turbine auxiliary device feedback, and breaker positions.
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Water & Wastewater Treatment: Recording signals from float switches, door interlocks, and pump position indicators.
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Pharmaceutical & Food Production: Cleanroom process step validation via sensors and barrier systems.
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Pulp and Paper Mills: Monitoring motor starters, paper tensioners, and conveyor input states.
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Mining & Cement Industries: Reading inputs from belt tracking sensors, process interlocks, and safety relays.
Product Advantages
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High Channel Density: 16 inputs per module helps reduce cabinet space and wiring complexity.
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Robust Isolation: Channel and system isolation enhance signal integrity and safety.
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Extensive Diagnostics: Built-in diagnostics for channel health, connection integrity, and real-time status via LEDs.
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Hot-Swappable Design: Enables in-field maintenance without disrupting plant operations.
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Compatible with Distributed Systems: Seamless integration into Honeywell’s distributed I/O systems under Experion PKS.
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Versatile Input Handling: Accepts wide voltage range and supports both dry contact and externally powered sensors.
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Field-Proven Reliability: Tested for industrial-grade durability in high-vibration and high-temperature environments.
Frequently Asked Questions (FAQ)
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Q: What does the Honeywell 8C-TAID51 module do?
A: It collects 16 discrete (digital) input signals from field devices and transmits them to the controller for processing. -
Q: Is this module compatible with Honeywell’s C300 system?
A: Yes, the 8C-TAID51 is specifically designed for use with Honeywell’s C300 and Series C I/O architecture. -
Q: Can this module be used with dry contact inputs?
A: Yes, it supports dry contact and externally powered sourcing-type input configurations. -
Q: How does the module indicate a fault condition?
A: Each channel has status LEDs, and the module communicates diagnostics back to the system for centralized monitoring. -
Q: What happens if one input channel fails?
A: The channel is isolated, so a single fault won’t affect other inputs. Fault status is also reported for maintenance. -
Q: What is the minimum voltage required for the input to register as “ON”?
A: A voltage above 11 VDC is typically recognized as a logic high. -
Q: Can this module be replaced during system operation?
A: Yes, it supports hot-swap functionality to minimize downtime. -
Q: Is there input debounce filtering?
A: Yes, the module includes filtering mechanisms to eliminate false triggering from contact bounce. -
Q: Does the module provide input timestamping?
A: Timestamping depends on the controller it is integrated with. The C300 controller supports accurate sequencing. -
Q: Is this module certified for use in hazardous areas?
A: Yes, when installed within a certified system, it meets Class 1 Div 2 and related international standards.
Recommended Related Models (Same Series or Function Class)
| Model | Description | Channels | Type |
|---|---|---|---|
| 8C-TAID51 | Digital Input Module | 16 | Digital Input |
| 8C-TDODA1 | Digital Output Module | 16 | Digital Output |
| 8C-PAINA1 | Analog Input Module | 8 | Analog Input |
| 8C-PAOHA1 | Analog Output Module | 8 | Analog Output |
| 8C-IP0101 | Pulse Input Module | 4 | Pulse Input |
| 8C-TDIL01 | Isolated Digital Input Module | 16 | Digital Input |
Popular Models from the Same Brand (Honeywell)
| Model | Description | Category | Application |
|---|---|---|---|
| 8C-TAID51 | Digital Input Module (16 Channels) | I/O Module | Discrete signal acquisition |
| 8C-SDOX01 | Digital Output Module (8 Channels) | I/O Module | Actuating field devices |
| CC-PAIH01 | Analog Input Module | I/O Module | Sensor signal acquisition |
| CC-PDIL01 | Pulse Input Module | I/O Module | High-speed counter applications |
| MC-TDOY22 | SIS Digital Output Module | Safety Module | Emergency shutoff systems |
| CC-TDIL01 | Isolated Digital Input Module | I/O Module | Field feedback signal monitoring |
