PLCs, Power Supplies & Others

Industrial networks need signal regeneration for long cable runs. The Schneider NWRR85001 extends Modbus Plus communication across distant devices. This unit functions as an electrical repeater for the Modicon Quantum series. Schneider Electric designed this assembly for reliable network expansion.

Technical Specifications & Dimensions

This repeater amplifies Modbus Plus signals to overcome distance limitations. The table below outlines its core technical parameters.

Construction and Interface Layout

This repeater features a rugged metal chassis for industrial environments. Such a design protects internal electronics from vibration and EMI. Furthermore, the Schneider NWRR85001 provides two BNC connectors for coaxial cables. You will find these ports on the front panel for easy access. The unit also includes a terminal block for AC power input. LED indicators show power and network activity status clearly.

Energy Storage and Signal Regeneration

Unlike passive splitters, this active repeater regenerates weak Modbus Plus signals. The unit uses a transformer-isolated power supply for noise rejection. Consequently, the Schneider NWRR85001 extends network segments up to 450 meters each. Internal capacitors provide hold-up time during momentary voltage sags. This energy storage prevents network dropouts under brownout conditions. The unit does not require any batteries for configuration retention.

Installation and Mounting Requirements

Installing the Schneider NWRR85001 takes only a few minutes of work. The unit mounts directly into a standard 19-inch rack. It also supports shelf mounting or panel mounting with optional brackets. Always disconnect AC power before wiring the input terminals. The unit uses passive cooling through ventilation slots on the chassis. This design eliminates fan noise and mechanical failures. The repeater occupies 2U of rack space.

Integration with Modbus Plus Networks

This repeater works perfectly with Modicon Quantum PLCs and other Modbus Plus devices. It connects two network segments using standard RG11 coaxial cable. Operators can cascade multiple repeaters for longer network spans. The Schneider NWRR85001 supports both 110V and 220V AC power inputs. Consequently, this unit remains essential for large Modbus Plus installations. The repeater delivers consistent performance across a 0°C to 60°C temperature range.

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