Fuji NP3L-LL2PCS LE-Net Loop2 Bus Module

Network Architecture and Communication Capabilities

The Fuji NP3L-LL2PCS functions as a dedicated communication module for LE-Net Loop2 bus-based networks. It manages data exchange between the PLC controller and distributed remote I/O devices efficiently. This module supports loop topology configurations that provide redundant communication paths for enhanced reliability. It handles both cyclic and acyclic data transfer across the network infrastructure.

This communication module provides two independent loop ports that support daisy-chain or ring configurations. It automatically detects network faults and reroutes data through alternate paths. Consequently, engineers can deploy this unit in critical applications requiring high network availability.

Physical Specifications and Interface Connections

The NP3L-LL2PCS measures 22.0 cm in length, 18.5 cm in width, and 1.8 cm in thickness. It weighs approximately 0.36 kg, reflecting the density of components across the multi-layer board. This unit features gold-plated edge connectors that ensure reliable electrical contact with the system backplane. These connectors withstand repeated insertion cycles without degrading signal integrity.

The front panel features LED indicators for loop status, module health, and data exchange activity. These visual indicators provide immediate feedback during system startup and troubleshooting. The board surface contains test points at strategic locations for diagnostic and troubleshooting purposes.

Power Consumption and Energy Storage

This communication module draws 280 mA from the backplane at 5 VDC during normal operation. It incorporates energy storage capacitors that maintain network configuration data during brief power interruptions. These capacitors provide approximately 25 milliseconds of hold-up time to preserve communication parameters. The module also retains configuration settings in non-volatile memory without requiring battery backup.

Technical Specifications

Parameter	Specification
Manufacturer	Fuji Electric
Model	NP3L-LL2PCS
Category	Communication Module / LE-Net Module
Network Type	LE-Net Loop2 Bus
Topology	Loop / Ring configuration
Loop Ports	2 independent ports
Redundancy	Automatic fault detection and rerouting
Backplane Current Draw	280 mA at 5 VDC
Connectors	Gold-plated edge connectors
Dimensions (L x W x H)	22.0 cm x 18.5 cm x 1.8 cm
Weight	0.36 kg
Memory	Non-volatile configuration storage

System Integration and Network Configuration

The NP3L-LL2PCS integrates seamlessly with Fuji NP3 Series controllers and LE-Net compatible devices. Users can configure the module using Fuji standard configuration tools for addressing and communication parameters. It supports distributed I/O architectures with multiple remote stations connected through the loop network. This communication module enables reliable connectivity between Fuji controllers and remote field devices across large facilities.