Product Introduction
In industrial automation, reliable communication between devices is critical. The Schneider NW-BM85-000 bridge multiplexer addresses this need by enabling seamless data exchange across Modicon systems. Designed as a Data Terminal Equipment (DTE) device, this module operates at 115/230V AC, offering flexibility for various setups. With its compact form factor and robust build, the NW-BM85-000 simplifies integration in control cabinets and reduces downtime.
Technical Specifications Breakdown
The following table details the key parameters of the Schneider NW-BM85-000, sourced directly from the product database. Each spec contributes to its reliable performance in industrial environments.
| Specification |
Value |
| Manufacturer |
Schneider Electric |
| Product Type |
Bridge Multiplexer |
| Product Line |
Modicon |
| Part Number |
NW-BM85-000 |
| Weight |
5.00 lbs (2.27 kg) |
| Voltage |
115/230V AC |
| Number of Ports |
4 ports |
| Port Type |
RS-232 ports |
| Modbus Master Ports |
Supported |
| Modbus Slave Ports |
Supported |
| Modbus Messaging |
Supported |
| Rack Mounting |
Supported |
| Modbus Plus Connection Option |
Supported |
| Modbus Gateway Connection Option |
Supported |
The dual voltage capability of the Schneider NW-BM85-000 allows it to work across regions without a separate power supply. Its four RS-232 ports enable connection of multiple devices such as PLCs, HMIs, and drives. Support for both Modbus master and slave ports ensures flexibility in communication hierarchy, while Modbus Messaging facilitates standard protocol handling. The rack-mounting feature simplifies installation within standard cabinets.
Industry Applications
The Schneider NW-BM85-000 is ideal for factory automation, process control, and building management systems. For example, in a production line using Modicon controllers, this bridge multiplexer connects multiple sensors and actuators over RS-232 links, centralizing data acquisition. It also serves as a gateway between Modbus Plus networks and Modbus RTU devices, extending system reach without added complexity.
Installation & Setup Guidance
Mount the Schneider NW-BM85-000 in a standard 19-inch rack using the provided brackets. Ensure proper ventilation and clearance around the unit. As a DTE device, use a modem cable (straight through) when connecting to a DCE device like a modem. For DTE-to-DTE connections, employ a null-modem cable (crossed cables). Verify the voltage selection switch matches your supply (115 or 230V AC) before powering up. Connect RS-232 cables to the four ports using shielded cables for noise immunity.
Compatibility & Integration
The NW-BM85-000 integrates seamlessly with Modicon automation platforms. It supports Modbus master and slave ports, allowing direct communication with PLCs and remote I/O. The Modbus Plus option enables connection to legacy networks, while the Modbus Gateway option facilitates bridging to Ethernet-based systems. Ensure your devices share a common baud rate and parity settings for optimal performance.
Selection Guide & Purchasing Advice
Before purchasing the Schneider NW-BM85-000, verify your system voltage (115/230V AC) and confirm the need for RS-232 ports. If your application requires more than four serial connections, consider additional multiplexers. For integration support, contact ubest101, a reliable supplier for industrial automation parts. Always use genuine Schneider accessories for cables and power supplies to maintain reliability.