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SDV531-L23

The Yokogawa SDV531-L23 is a digital output module designed for use in safety instrumented systems (SIS), particularly within the ProSafe-RS series. This module provides 8 isolated digital output channels, each delivering 24 V DC signals, suitable for controlling field devices such as solenoids, relays, and actuators.

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Key Specifications

Model: SDV531-L23

Channels: 8 isolated digital output channels

Output Voltage: 24 V DC nominal

Output Voltage Range: 12–32 V DC

Output Current per Channel: Up to 25 mA

Maximum Load Current per Line: 0.6 A (total 4.8 A)

Minimum Load Current: 35 mA

Load Resistance Range: 40 to 685 Ω

Output Format: Current source

Output Response Time: ≤ 30 ms

Maximum Leakage Current (Output OFF): 1.6 mA

Withstand Voltage: 2 kV AC for 1 minute between output signal lines and system ground

External Power Supply: 24 V DC, minimum 5 A

Current Consumption:

280 mA max @ 5 V DC

140 mA max @ 24 V DC

Mounting Style: Panel mount

Protection: Non-explosion proof

Operating Temperature: -20°C to +60°C

Humidity: 10% to 95% RH, non-condensing

Dimensions: 75 mm × 114 mm × 90 mm

Weight: Approximately 250 g

Communication Protocol: MODBUS

✅ Key Features

Optical Isolation: Each channel is optically isolated to prevent electrical noise and ground loops.

High-Speed Communication: Supports communication speeds up to 10 Mbps, ensuring real-time data exchange.

Built-in Diagnostics: Includes diagnostic functions to detect and isolate faults, ensuring system integrity and safety.

Compact Design: Easily installed in space-constrained environments.