ACCES IO PRODUCTS PCI-IIRO-16 Circuit Board Module

The ACCES I/O PCI-IIRO-16 is a PCI-bus isolated input/relay I/O card that adds 16 optically isolated digital input channels and 16 relay outputs to a host PC, enabling robust field wiring interfacing while keeping the computer electrically isolated from external equipment. Designed for industrial automation, data acquisition, and process control, the board protects the host from voltage transients and ground loops, supports straightforward wiring, and lets you capture discrete input events while commanding loads via reliable relay outputs. The PCI-IIRO-16 is part of ACCES I/O’s IIRO family, sharing a documented register-level interface that enables direct software control of inputs and relays and is supported by ACCES-provided documentation and examples. Typical deployments include machine-control panels, safety interlock circuits, monitoring stations, and automation racks where reliable isolation and PCI-compatible integration are essential. A complete PCI-IIRO-16 manual and software resources supply the register map, wiring considerations, and example code to help engineers integrate the card into Windows, Linux, or real-time environments.