51307039-100 8U-BXCBIO-CN HONEYWELL

HONEYWELL 51307039-100 8U-BXCBIO-CN Digital Input Module

Brand：HONEYWELL Model number：51307039-100 8U-BXCBIO-CN

Country of origin: United States Product weight：0.4kg

HS code：8517623990

Product Details：

Product Dimensions：

A Honeywell Digital Input Module is a key component within their various distributed control systems (DCS), safety systems (SIS), or programmable logic controllers (PLC). Its fundamental purpose is to acquire on/off or discrete binary signals from field devices and convert these electrical signals into a digital format that the main controller can process.

Functionality: The module accepts input signals from field devices such as pushbuttons, limit switches, proximity sensors, temperature switches, and flow switches. It conditions and optically isolates these signals to prevent electrical noise and high voltage from damaging the sensitive control electronics. It then sends the logical '1' (ON) or '0' (OFF) status to the controller's central processing unit (CPU).
Types: Honeywell offers modules for various systems like the Experion PKS platforms (C300, C200), Safety Manager, and legacy systems like TDC 3000. Modules are differentiated by voltage rating, channel count, and isolation type.
Key Features:

Galvanic Isolation: Provides electrical separation between field wiring and control circuitry.
LED Status Indicators: Visual indication for the on/off state of each channel.
Noise Immunity: Designed to suppress electrical noise and transient signals typical in industrial environments.
High Channel Density: Modules are designed to maximize the number of inputs in a compact footprint.
Hot-Swappable: Many modern modules can be replaced without powering down the entire control rack (depending on the system).
Diagnostic Capabilities: May include features for detecting open circuits or short circuits in the field wiring.

HONEYWELL Digital Input Module: Product Parameters

Parameters are application and system-specific but generally include:

Input Voltage Range: Common voltages are 24V DC, 48V DC, 120V AC/DC, and 230V AC/DC.
Number of Channels: Typically 8, 16, or 32 points per module.
Isolation Type: Group isolated (channels share a common return) or fully channel-to-channel isolated (maximum fault tolerance).
Input Current: The minimum current required to reliably detect a logical 'ON' state.
Response Time: The maximum time delay between the field device changing state and the controller registering the input (critical for safety systems).
Filtering: Built-in digital or analog filtering to suppress contact bounce or electrical noise.
Operating Temperature: Standard industrial range, typically -40°C to 70°C.
System Compatibility: Specific backplane or chassis required (e.g., C300 I/O termination).
Certifications: SIL (Safety Integrity Level) rating for safety modules, ATEX/IECEx for hazardous areas, UL, CE.

HONEYWELL Digital Input Module: Product Advantages

System Integration: Designed for seamless and native integration with Honeywell's control platforms, simplifying configuration and commissioning.
Safety and Reliability: Used in critical applications due to high reliability, robust design, and excellent noise immunity.
Reduced Wiring: High-density modules and specific termination assemblies minimize field wiring complexity and costs.
Diagnostic Detail: Advanced diagnostics (especially in modern systems) can pinpoint field faults quickly, reducing troubleshooting time.
Hot-Swappability: Maximizes system availability by allowing module replacement without process interruption.
Hazardous Area Support: Many modules are certified for installation in hazardous or potentially explosive atmospheres.

HONEYWELL Digital Input Module: Important Considerations

Wiring Scheme: Must adhere strictly to the system's specified wiring, grounding, and shielding practices to maintain signal integrity and safety ratings.
Voltage Matching: Select a module with an input voltage range that precisely matches the output voltage of the field devices.
Filtering Time: The input filter setting must be configured appropriately; too fast, and it registers noise; too slow, and critical events may be delayed.
Safety Rating: For safety-critical systems (SIS), ensure the module carries the required SIL rating and is used in a certified architecture.
Load Type: Be aware of the characteristics of the field device (e.g., dry contact vs. solid-state output) and ensure compatibility with the module's input type.
Documentation: Always rely on the latest Honeywell system manual and module specification sheets for precise wiring diagrams and configuration limits.

HONEYWELL Digital Input Module: Product Applications

Oil and Gas: Monitoring valve positions, pressure switch status, and emergency shutdown buttons on pipelines, refineries, and offshore platforms.
Chemical and Petrochemical: Monitoring process interlocks, level switches, and critical safety instrumented functions.
Power Generation: Reading breaker status, control panel pushbuttons, and auxiliary equipment status in power plants.
Pharmaceutical and Biotech: Monitoring door status, cleanroom controls, and equipment operational feedback.
General Manufacturing: Monitoring limit switches on machinery, operator pushbuttons on control panels, and sensor feedback from automated equipment.
Building Management: Monitoring fire alarm signals, security contacts, and general system status within large industrial and commercial facilities.

281CX12 HONEYWELL

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