Yokogawa SDV144-S13 16-Channel Digital Input Module

The Yokogawa SDV144-S13 (Style S1) is a 16-channel digital input module designed for Yokogawa CENTUM VP and ProSafe-RS systems. It accepts no-voltage (dry contact) signals from field devices such as switches, relays, and sensors and converts them into isolated digital inputs for the control system. Built for high-reliability industrial environments with 2 kV AC input-to-system isolation and rack-mounted FIO/safety node compatibility, it supports system redundancy in critical plants. Key specifications include 16 isolated input channels, max input voltage 30 VDC, contact rating 24 VDC (≥10 mA), ON resistance ≤1 kΩ, OFF resistance ≥100 kΩ, input current ~6 mA ±20% at 24 VDC, external 24 VDC ±5% ~200 mA, response time ≤40 ms, and current consumption ~290 mA at 5 VDC or ~140 mA at 24 VDC. Common replacements include Yokogawa SDV144-S53 and SDV144-S11/S12 variants, as well as the SDV541 digital output counterpart.