Description
NI cFP-1804 – Compact FieldPoint Ethernet Network Interface for Distributed I/O
The NI cFP-1804 is a network interface module that brings Compact FieldPoint I/O to standard Ethernet, ideal for plants that want dependable, host-based I/O without a full embedded controller. From my experience, it’s a straightforward way to extend or refresh legacy Compact FieldPoint systems, especially where you already rely on LabVIEW, NI-OPC, or NI Measurement & Automation Explorer (MAX) for configuration.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Lead time: typically 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express options: FedEx, UPS, DHL
Key Features
- Ethernet connectivity to cFP I/O – Bridges Compact FieldPoint backplanes and modules to 10/100Base‑TX networks for distributed I/O.
- Host-based architecture – I/O is scanned and managed by a PC or supervisory system via NI drivers, which typically keeps configuration simple.
- Industrial design – Rugged Compact FieldPoint form factor suitable for on-machine or cabinet installations.
- Safe-state behavior – In many cases, systems use network watchdogs to place outputs in a defined state if comms are lost (implementation depends on the I/O modules and host software).
- Easy configuration with NI MAX – You might notice that initial setup, IP configuration, and channel mapping are quick if you already use NI tools.
- Legacy-friendly – A practical drop-in for maintaining or expanding existing Compact FieldPoint systems still in service.
Technical Specifications
| Brand / Model | National Instruments NI cFP-1804 |
| HS Code | 8537.10 (Industrial control equipment) |
| Power Requirements | 11–30 VDC input (typical for Compact FieldPoint systems) |
| Operating Temperature | Typically −40 to +70 °C (Compact FieldPoint platform rating) |
| Communication Interfaces | 10/100Base‑TX Ethernet (RJ‑45); configuration via NI MAX; supports NI FieldPoint/OPC through NI drivers |
| Signal Input/Output Types | Backplane interface for cFP I/O modules (analog, digital, relay, specialty) as installed on the cFP backplane |
| Installation Method | DIN‑rail mounting with Compact FieldPoint backplane; screw‑terminal power input |
| Dimensions & Weight | Standard Compact FieldPoint module form factor (single-width network interface) |
Application Fields
Typical use cases include factory automation cells needing distributed I/O over Ethernet, utilities and water/wastewater SCADA panels where rugged, host-polled I/O is preferred, and test stands that centralize acquisition on a PC but require field I/O near the sensors. One thing I appreciate is how cleanly it fits into legacy sites that still standardize on Compact FieldPoint—minimal retraining, minimal wiring changes.
Advantages & Value
- Reliability in the field – The cFP platform is known for steady performance in cabinets with vibration and temperature swings.
- Compatibility – Works with existing cFP backplanes and modules; easy integration with LabVIEW and NI’s OPC connectivity.
- Cost control – For host-based architectures, you can reuse your PC or SCADA system and avoid adding an embedded controller where it’s not required.
- Service continuity – For facilities maintaining Compact FieldPoint, this model seems to be a practical replacement or expansion path, reducing retrofit risk.
Installation & Maintenance
- Cabinet and mounting – Mount on DIN rail with the proper cFP backplane. Leave space for airflow; avoid direct heat sources.
- Power wiring – Use a clean 24 VDC supply (within 11–30 VDC range). Separate I/O power and logic power where appropriate to reduce noise.
- Networking – Use industrial Ethernet cables; ground shields on one end to limit ground loops. Static or DHCP addressing can be set in NI MAX.
- Safety – De-energize the cabinet before inserting/removing modules; verify safe-state behavior for outputs during network faults.
- Routine checks – Periodically inspect connectors, clean dust with dry air, and verify firmware/driver versions in NI MAX. Many teams schedule annual I/O mapping audits.
A maintenance note from a customer in a bottling plant: “We keep a spare cFP network head on the shelf; swapping and reapplying the saved NI MAX configuration takes minutes when we do a planned upgrade.”
Quality & Certifications
- Designed to meet industrial EMC and safety requirements; NI products in this series are typically CE and UL marked.
- RoHS compliance may vary by manufacturing date; documentation can be provided upon request.
- Manufacturer policy: NI standard limited warranty applies by region; we provide a 365‑day warranty on supply.
Related/Supporting Components (for planning)
- cFP backplanes: cFP‑BP series (select slot count based on I/O needs)
- cFP I/O modules: analog input/output, digital input/output, relay, and specialty modules
- 24 VDC industrial power supply sized for the full cFP load (interface + modules)
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