Yokogawa Electric Corporation SDV541-S33 S3 Digital Output Module

The Yokogawa SDV541-S33 S3 Digital Output Module is a 16-channel, rack-mounted digital output module for Yokogawa CENTUM VP and ProSafe-RS systems that delivers ON/OFF control signals from the controller to field devices such as relays, solenoids, and actuators, with 2 kV AC isolation between output and system. Each channel provides a 24 VDC digital output (current source type) capable of up to 0.2 A per channel (3.2 A total), powered from an external 24 VDC supply rated at +20% / -10% and about 3.4 A capacity. The module features a dropout voltage ≤ 1 V, a minimum load current around 35 mA, and a response time of ≤ 30 ms, supporting reliable real-time control in safety-critical environments. Operating temperature is -20 to 70 °C (S3 rating), and mounting is rack-mounted (FIO / safety node unit) with built-in wiring diagnostics and support for redundant configurations. Common replacements include Yokogawa SDV541-S63 (newer revision), SDV531 Series (8-channel variant), and ADV551 Series (higher density output module).