The Schneider Electric 416 NHM 300 30 is a Modbus Plus PCI adapter card that enables personal computers to establish direct communication with Modbus Plus industrial networks. This single-port adapter integrates into standard PCI slots and supports peer-to-peer data exchange across control systems, PLCs, and operator interfaces at speeds up to 1 Mbaud. Operating from a 5 V DC power supply, the card is compatible with both 5 V and 3.3 V PCI bus architectures and includes plug-and-play installation with Windows drivers for legacy operating systems.
Technical Specifications
• Manufacturer: Schneider Electric (Modicon product line)
• Part Number: 416 NHM 300 30
• Interface Type: Modbus Plus over PCI
• Port Configuration: Single Modbus Plus port
• Operating Voltage: 5 V DC
• PCI Bus Compatibility: 5 V and 3.3 V PCI
• Communication Speed: Up to 1 Mbaud
• Network Topology: Single twisted shielded pair cable; supports up to 32 nodes without repeaters or 64 nodes with repeaters
• Operating Temperature Range: 0–50°C
• Physical Dimensions: 168 mm (W) × 120 mm (H)
• Weight: Approximately 0.11 kg
• Driver Support: Windows 98, Windows NT 4.0, Windows 2000, Windows XP
– Key Features
• High-speed Modbus Plus peer-to-peer communication
• Plug-and-play functionality for rapid deployment
• Dual PCI voltage support (5 V and 3.3 V)
• Standard twisted-pair cable topology
• Suitable for non-corrosive industrial environments
– Typical Applications
• Data acquisition and monitoring across networked devices
• Software upload/download and remote programming
• Host computer data collection from distributed control systems
• Operator interface connectivity
• CPU-to-CPU and CPU-to-host communications
– Compatibility & Integration
The adapter integrates with Modicon PLCs and industrial PCs running Windows 98 through Windows XP. Installation requires a standard PCI slot. Network architecture supports expansion beyond 32 nodes through repeater infrastructure.














