PCI-6521

Digital I/O Device

Contact us Please select your country to get pricing information

16-Channel, ±30 VDC, 8 Sink/Source Inputs, 8 Relay Outputs (150 V), Isolated Digital I/O Device—The PCI-6521 is an industrial digital I/O module with high channel isolation and industry-standard 24 V logic levels. If a computer or application fault occurs, the PCI-6521 can use digital I/O watchdogs to switch to a configurable safe output state to ensure detection and safe recovery from fault conditions. It also features programmable power-up states, digital filtering, and change detection for optimal control over your application.

Product Support Resources

Manuals

Find complete product documentation to learn how to get started and use the product.

KnowledgeBase

Explore articles written by our support engineers to help you troubleshoot problems and complete common tasks.

Getting Started Tutorials

Learn how to connect and configure your hardware to take your first measurement.