The National Instruments PCI-6509 is a versatile digital I/O device designed to facilitate the control of external digital devices such as Solid-State Relays (SSR). This model, identified by part numbers 778792-01, 778936-01, 189700E-01L, and 189700C-01, features a robust architecture that allows users to configure each of its 96 I/O channels independently for input or output without the need for an external power supply. Equipped with a 100-pin female 0.050 series SCSI I/O connector, the PCI-6509 enables seamless interfacing with various industrial automation components.

The device’s programmable power states ensure that it can be set to a predefined state—input, high output, or low output—when powering up, thereby enhancing safety and reducing the risk of unexpected behavior during operation. In the event of a computer or application failure, the PCI-6509 utilizes advanced I/O watchdog timers that can switch to a configurable safe output state, providing a reliable detection and recovery mechanism from fault conditions. Additionally, the device offers programmable input filters that stabilize input signals, effectively eliminating noise and ensuring reliable performance when connected to digital relays or switches.

The PCI-6509 is capable of generating interrupts in response to changes on any input line, allowing for sophisticated monitoring of rising or falling edges. Upon detecting a state change, the device alerts the user’s software, although it does not provide details on the specific line or type of transition; however, line states can be read after a change occurs. This functionality is contingent upon the software response time, which may vary depending on the system configuration. The PCI-6509 operates using the NIDAQmx driver software, supporting programming through application development environments such as LabVIEW and LabWindows/CVI. Although it has been designated as a mature product, the PCI-6509 remains available for purchase and repairs through Apex Waves.

The device measures 4.9 inches by 3.8 inches and weighs 2.5 ounces, backed by a three-year warranty. Comprehensive user documentation and maintenance manuals can be downloaded for further guidance. For pricing inquiries, please contact a sales representative directly.