FC-SDI-1624 Honeywell 24VDC Digital Input Module

Product Description

The FC-SDI-1624 is a high-performance digital input module engineered by Honeywell for safety-critical industrial automation applications. As a core component of the Honeywell Safety Manager architecture, this 16-channel module provides fast and reliable acquisition of discrete signals from field devices such as limit switches, pushbuttons, and electronic proximity sensors.

Designed for maximum flexibility in complex safety logic environments, the FC-SDI-1624 supports PNP, NPN, and dry contact input types. With an ultra-fast response time of ≤ 1 ms, it is optimized for high-speed protective functions where low latency is essential. Its robust 24 VDC design and advanced diagnostics ensure accurate signal detection even in electrically noisy industrial environments.

Technical Specifications

Operational Features

The FC-SDI-1624 is designed for mission-critical reliability in continuous-operation environments. Its software-defined architecture allows engineers to configure debounce time and input behavior on a per-channel basis, making it ideal for mixed sensor installations.

Integrated protection circuits shield the internal electronics from field-side voltage transients, ensuring long-term durability in demanding applications such as oil refineries, chemical plants, and power generation facilities.

Technical FAQ

Can the response time be adjusted to prevent false trips?
Yes. While the hardware supports high-speed acquisition (≤ 1 ms), the response time can be software-configured up to 100 ms to provide effective noise filtering and debounce for mechanical contacts.

Is this module compatible with both active and passive sensors?
Yes. The FC-SDI-1624 supports powered electronic sensors (PNP/NPN) as well as non-powered mechanical dry contact inputs, offering high flexibility for diverse field I/O requirements.