Industrial Communications and I/O Capabilities
NI industrial controllers Systems have 24 onboard reconfigurable digital I/O lines—eight 5-24 VDC isolated input lines, eight 5-24 VDC isolated output lines, eight bidirectional TTL lines, and two bidirectional differential RS422 lines that can be used as a quadrature encoder input. These lines include built-in functionality for generating strobe pulses, triggering, and writing/reading from digital lines. Using these signals, you can dynamically control your lighting or cameras, synchronize with a conveyor belt, or integrate Compact Vision Systems with programmable logic controllers (PLCs).
NI industrial controllers and CompactRIO controllers also support the Vision RIO API, which you can use to easily configure a queue or pulses. It provides a reliable, hardware-timed method of tightly synchronizing vision-inspection results with external I/O, such as conveyer belts and rejection systems.
In addition, the systems can send commands and data to other devices, including PLCs and operator interfaces, using industrial protocols such as Ethernet/IP, RS232/RS485, Modbus serial, and Modbus/TCP. With enterprise connectivity, you can also monitor the inspection results, view images, or store data in databases for statistical process control. These systems also have a dedicated Gigabit Ethernet port for network connectivity, a user-selectable RS232/RS485 serial port, and two high-speed USB ports for external data storage.