Yokogawa SDV531 Digital Output Module | ProSafe‑RS SIL3

Technical Specifications

Electrical & I/O

• Channels: 32 digital outputs (sink type)

• Output Signal: Current sink transistor outputs for solenoids and relays

• Rated Voltage: 24 V DC (operating range: 19.2–28.8 V DC)

• Maximum Load Current: 0.5 A per channel

• Isolation: Channel-to-channel and channel-to-system isolation

• Protection: Overcurrent and short-circuit protection

Performance & Diagnostics

• Response Time: ≤10 ms per channel

• Reliability: Continuous operation in SIL3 environments

• Diagnostics: LED indicators for each channel

• Redundancy: Dual redundant configuration supported

Mechanical

• Mounting: Rack-mounted in ProSafe‑RS backplane

• Dimensions (W × H × D): 130 × 130 × 32 mm

• Weight: 0.5 kg

• Cooling: Natural convection

• Protection: IP20

Communication & Integration

• Interface: Proprietary Yokogawa safety bus

• Compatibility: Fully compatible with ProSafe‑RS SIS architecture

• Configuration: Managed via Yokogawa safety engineering tools

Environmental & Compliance

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: −20 °C to +70 °C

• Relative Humidity: 5–95% non-condensing

• Certifications: CE, UL, CSA, IEC 61508 SIL3 compliant

• Origin: Manufactured in Japan

FAQ

Q1: How many channels does SDV531-S23/D4A00 S3 support?
It provides 32 digital output channels for driving solenoids and relays.

Q2: Is the module suitable for SIL3 applications?
Yes, it is fully compliant with IEC 61508 SIL3 standards.

Q3: Can the module operate redundantly?
Yes, it supports dual redundant configurations for fault-tolerant operation.

Q4: What is the output voltage and current per channel?
The module outputs 24 V DC with up to 0.5 A per channel.

Q5: Which systems is this module compatible with?
It integrates seamlessly with Yokogawa ProSafe‑RS SIS architecture.