MODICON AS-B809-016

MODICON AS-B809-016 belongs to Modicon 800 series, a 16-point 230VAC discrete input module for PLC rack-based automation systems. It collects AC switching signals from field sensors and converts them into logic signals recognizable by the main CPU for sequence control and condition judgment. The input module captures on-site switch status, the AC circuit supports 160–260VAC 47–63Hz field devices, and the automation signal acquisition realizes reliable signal collection for assembly lines and fastening stations.

The input module divides 16 channels into two groups of 8 points with independent electrical isolation to prevent interference spread between channels. Each channel is fitted with status indicator lights for quick on-site visual inspection of on/off states. The AC input circuit contains built-in filter components to suppress voltage fluctuation and electrical noise, ensuring stable signal transmission of the input even in environments with frequent motor start-stop interference. Engineers can connect limit switches, proximity sensors and pushbuttons to capture trigger signals for each automation step, and all input status is scanned and uploaded to the CPU for program execution and fault logic judgment.

This input module adopts single-slot plug-in design for direct installation on the standard Modicon backplane, saving cabinet space and supporting convenient replacement during maintenance. The AC input hardware meets industrial surge protection specifications to resist transient voltage spikes. It maintains fast signal response and real-time status feedback to stabilize the whole automation workflow, shorten signal troubleshooting time and reduce misjudgment caused by signal loss.