ADLINK PCIe-7396 Digital I/O Card Deployment Guide
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Au:FANS
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DA:2026-07-15
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16 Br:
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In the fields of industrial automation control, equipment status monitoring, and parallel data acquisition, the reliability and flexibility of high-density digital I/O channels directly determine the system response speed and scalability. ADLINK's PCIe-7396 is a 96 bit parallel digital I/O card based on the PCI Express bus. It provides up to 12 8-bit ports through 2 to 4 8255 programmable peripheral interface (PPI) chips onboard, each port can be independently configured as an input or output, and supports 48mA high current drive, external trigger acquisition, change of state (COS) interrupt, and dual interrupt source system. This article provides a complete deployment and development reference for system integration engineers, starting from hardware installation, register programming, interrupt configuration, timing/counter applications, and common debugging points.
COS interrupt does not trigger port not configured as input or COS not enabled to check control register direction bit and COS control register
Timer interrupt frequency inaccurate 8254. Basic frequency or count value setting error. Reset through API, refer to 2MHz reference frequency
After the interrupt response, the system suspends the ISR. If the interrupt is not cleared, write the Clear Interrupt register at the end of the ISR
Multiple card interrupt conflicts do not distinguish between card IDs or interrupt sharing usage. Get actual IRQ and distinguish source
