CFP-1808

National Instruments cFP-180x Compact FieldPoint Ethernet / Serial Interfaces
Features

• Distributed I/O Interfaces for Ethernet and RS232 Networks
• 4 or 8-Slot Compact FieldPoint distributed Ethernet/Serial Network Interfaces
• FieldPoint Software for Rapid Distributed I/O Access
• Modbus Support
• OPC Server Included
• Intelligent Diagnostics and Maintenance

The National Instruments cFP-180x connects directly to Ethernet networks, autonegotiating on the network for 10 Mb/s or 100 Mb/s communication rates. It includes an RJ-45 connector for connection to 10BaseT and 100BaseTX networks, using a protocol based on standard TCP/IP to maintain full compatibility with existing networks. FieldPoint builds on standard TCP/IP network protocols and adds a number of key enhancements, including event driven communications and publisher-subscriber networking. In a publisher-subscriber architecture, one or more client PCs subscribe to I/O data from Compact FieldPoint banks.

The network interface monitors connected I/O modules and publishes I/O data only when the value changes. Analog signals can change value within selectable ranges, called deadbands, without causing the system to report data. This event-driven method, along with data compression, helps you avoid unnecessary Ethernet traffic and maximizes communication efficiency. A cFP-180X also includes a standard DB-9 connector for RS232 serial communication. Through direct connectivity, you can read and write data directly from a program running on your PC or embedded controller. Access I/O through the serial interface using a serial protocol called Optomux, in the same way you would access data through classic FieldPoint network interfaces such as the FP-1000.