PLCs, Power Supplies & Others

This PCI-bus-based communication module connects personal computers to Fuji Electric LE-Net networks . It serves as a cost-effective link between host processors and remote LE-Net nodes. System integrators use this board for broadcast and message communication across automation networks. Its PCI form factor allows integration with standard industrial computers and workstations.

Network Architecture and Loop2 Capabilities

The Fuji NP3L-LL2PCS supports both multi-drop and single-loop redundant wiring topologies . The loop-2 mode extends the user data send and receive area significantly. If a transmission line breaks in a multi-drop network, errors occur immediately. However, in a loop network, data communication between nodes continues uninterrupted . Therefore, this module enables highly reliable system construction at relatively low cost.

PCI Interface and Host System Requirements

This board occupies a full-size PCI slot in the host computer . It requires an IBM-AT compatible system with an Intel Pentium 300 MHz processor. The host needs at least 128 MB of memory and 10 MB of free hard disk space . The board does not support multi-CPU configurations. Users must employ a personal computer with a single-CPU setup for proper operation .

Physical Specifications and Dimensions

The Fuji NP3L-LL2PCS measures 22.0 cm in length and 18.5 cm in width . Its thickness reaches 1.8 cm, conforming to standard PCI card specifications . The board weighs approximately 0.36 kg, reflecting the density of components . Gold-plated edge connectors ensure reliable electrical contact with the PCI slot . The front panel features LED indicators for loop status and data exchange activity .

Power Requirements and Data Storage

This communication board draws 280 mA from the PCI bus at 5 VDC . Energy storage capacitors maintain network configuration data during brief interruptions . These capacitors provide approximately 25 milliseconds of hold-up time . Non-volatile memory retains configuration settings without requiring battery backup .

Key Technical Specifications

The table below summarizes the critical parameters for the Fuji NP3L-LL2PCS.

System Integration and Configuration

The Fuji NP3L-LL2PCS integrates seamlessly with Fuji LE-Net compatible devices. Its performance and specifications match the module-type NP1L-LL2, though this board cannot become redundant . Users configure the module using standard Fuji configuration tools. The board supports development with Microsoft Visual Basic and Visual C++ applications . Consequently, engineers can build custom monitoring and control solutions using this PCI interface.

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