Description

The NI CFP-DO-403 is a high-performance, 32-channel digital output module specifically engineered for National Instruments’ Compact FieldPoint distributed I/O system, providing robust industrial-grade switching capabilities for demanding automation applications. This advanced module serves as a critical interface between control systems and field actuation devices, offering reliable control of solenoids, relays, motor starters, indicators, and other binary load devices. The NI CFP-DO-403 excels in handling both high-side and low-side switching configurations, making it exceptionally versatile for various industrial control applications. Its rugged design incorporates advanced protection against back-EMF, voltage transients, and electrical noise, ensuring reliable performance in the most challenging industrial environments while providing high-density output capability in a compact form factor.

Engineered with National Instruments’ measurement and control expertise, this module delivers exceptional switching reliability and fast response times that ensure precise control execution for automation sequences and safety-related functions. The NI CFP-DO-403 features software-configurable output states and startup behavior, providing flexibility to adapt to different application requirements without hardware changes. The module seamlessly integrates with the Compact FieldPoint platform, offering built-in load diagnostics, removable screw-terminal connectivity, and hot-swappable capability for maintenance-free operation. With its high channel density, industrial ruggedness, and advanced diagnostic capabilities, the NI CFP-DO-403 represents an optimal solution for distributed digital output applications where reliability, density, and control flexibility are essential requirements.

CFP-DO-403 NI

Technical Specifications

Parameter Name	Parameter Value
Product Model	CFP-DO-403
Manufacturer	National Instruments (NI)
Product Type	32-Channel Digital Output Module
Output Channels	32 channels, grouped in 8-channel banks
Output Type	Solid-state MOSFET, high-side switching
Output Configuration	Sourcing (current sourcing)
Load Voltage Range	5-30 VDC
Continuous Current Rating	0.5 A per channel
Maximum Inrush Current	2.0 A for 100 ms per channel
Leakage Current	< 100 μA @ 30 VDC
Voltage Drop	< 1.5 V @ 0.5 A
Response Time	< 100 μs (ON), < 200 μs (OFF)
Overvoltage Protection	±40 V transient protection
Short Circuit Protection	Yes, self-protecting with diagnostics
Operating Temperature	-40°C to +70°C
Connection Type	Removable screw terminal blocks
Power Consumption	2.5 W typical
Isolation	500 VAC channel-to-bus (bank isolation)

Main Features and Advantages

The NI CFP-DO-403 delivers exceptional switching performance through its high channel density and robust solid-state design, enabling efficient control of numerous field devices from a single compact module. The module’s MOSFET-based outputs provide silent operation, fast switching speeds, and virtually unlimited mechanical life compared to electromechanical relays, making them ideal for high-frequency switching applications. Advanced diagnostic capabilities include per-channel status monitoring, short-circuit detection, and open-load detection, providing comprehensive feedback about output health and connected load conditions. Built-in protection features include transient voltage suppression, overcurrent protection, and thermal shutdown, safeguarding both the module and connected field equipment from electrical faults and abnormal operating conditions.

The rugged industrial design of the NI CFP-DO-403 ensures reliable operation in extreme environments with an extended temperature range (-40°C to +70°C) and robust construction that resists vibration, shock, and electrical interference. The module features hot-swappable capability, allowing for maintenance and replacement without system shutdown when used in appropriate configurations, maximizing operational availability. Individual channel status indicators provide immediate visual feedback for troubleshooting, while the removable screw-terminal blocks simplify wiring and maintenance procedures. The NI CFP-DO-403 seamlessly integrates with NI’s LabVIEW and other programming environments, providing a complete solution for industrial digital output applications with reduced development time through extensive driver support and example code libraries.

Application Field

The NI CFP-DO-403 is extensively deployed across various industries requiring high-density digital output control in distributed or harsh environments. In industrial manufacturing, it is used for multi-point machine control, production line actuation, automated assembly systems, and material handling equipment requiring numerous control points. The automotive industry utilizes this module for production line control, robotic workcell actuation, test equipment control, and automated inspection systems with extensive actuator networks. Process industries employ the NI CFP-DO-403 for valve control, pump sequencing, conveyor system control, and distributed actuation across plant areas.

Material handling and logistics applications include sorting system control, automated storage and retrieval systems, package handling equipment, and warehouse automation with extensive actuator requirements. Building automation systems utilize this module for environmental control actuation, lighting control, security system control, and access control systems requiring numerous output points. Energy and utilities sector applications include equipment sequencing, control system actuation, and distribution automation requiring high-density output capability. Essentially, any application requiring reliable, high-density digital output control in distributed or environmentally challenging locations benefits from the advanced features and robust performance of the NI CFP-DO-403 module within the Compact FieldPoint platform.

CFP-DO-403 NI

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