Yokogawa SDV144‑S13 16‑Channel Safety Digital Input Module

The Yokogawa SDV144‑S13 is a safety‑grade 16‑channel digital input module for Yokogawa ProSafe‑RS SIS safety‑instrumented‑system. It receives 24 VDC dry‑contact and proximity‑switch signals from field safety‑related devices, converts discrete status into safe digital data for safety‑controller to execute ESD emergency‑shutdown, fire‑and‑gas interlock‑protection logic.

This hot‑swappable rack‑mount module adopts optocoupler isolation design, supports dual‑redundant deployment, and carries comprehensive channel‑level fault‑diagnosis capability to meet functional‑safety requirements. Front‑panel LED indicates channel status and module health condition. Widely used as aftermarket spare‑part for petrochemical‑plant SIS cabinet overhaul, safety‑signal‑loop debugging and safety‑system retrofitting projects.

Main Specifications

• Brand: Yokogawa; Model:SDV144‑S13; Type:Safety‑grade 16‑Channel Digital Input Module
• Applicable System:Yokogawa ProSafe‑RS SIS safety instrumented system; hot‑swap supported
• Input:16‑channel 24 VDC dry‑contact / proximity‑switch input; optocoupler isolation between field and system side
• Safety Standard:SIL‑3 capable; support dual‑redundant configuration for high‑availability safety‑loops
• Function:Safety discrete‑signal acquisition, open‑wire fault detection, safe‑data transmission to safety‑controller, hardware self‑diagnosis
• Feature:Rack plug‑in installation, front‑panel LED channel‑status indication, conformal‑coated PCB option
• Operating Environment:‑20℃ ~ +70℃, 5%‑95% RH non‑condensing
• Certifications: IEC 61508 SIL‑3 compliant for process‑industry safety‑automation applications

Core Functions

• Collect discrete contact‑status signals from field emergency‑stop buttons, pressure‑switches, limit‑switches and flame‑detectors for safety‑system logic processing.
• Channel‑by‑channel open‑circuit and short‑circuit fault‑detection, feed diagnostic‑alarm information back to ProSafe‑RS safety‑controller.
• Optocoupler isolation blocks common‑mode interference between field side and safety‑back‑plane bus to improve safety‑signal‑measurement reliability.
• Support single‑unit or dual‑redundant running mode to realize high‑availability safety‑loop operation for ESD and F&G protection‑system.
• Hot‑swap allows online module replacement without shutting down SIS safety‑rack, satisfying non‑stop‑running process‑plant maintenance‑requirements.
• Comply with IEC 61508 functional‑safety standard, guarantee fail‑safe response when internal hardware failure occurs in safety‑related‑control‑loops.

Application Scenarios

• Safety digital‑input acquisition component for Yokogawa ProSafe‑RS SIS safety‑instrumented‑systems.
• Critical spare‑part for petrochemical‑plant, chemical‑plant and oil‑gas‑facility SIS safety‑control‑cabinet maintenance.
• Retrofit and spare replacement for legacy SDV144‑S13 safety‑input‑module SIS‑system upgrade projects.
• SIS rack overhaul, safety‑field‑signal‑loop debugging and faulty safety‑digital‑input‑module replacement tasks.
• Spare‑parts inventory for process‑safety‑automation integrators and oil‑gas‑engineering‑maintenance contractors.

• Global aftermarket spare supply for technical teams maintaining Yokogawa ProSafe‑RS SIS safety‑automation hardware.