Yokogawa SDV144‑S13 16‑Channel Digital Input Module

The Yokogawa SDV144‑S13 is a 16‑channel safety‑rated digital input module for the ProSafe‑RS safety instrumented system. It collects dry contact on/off signals from field safety switches and transmits status data to the safety controller with module‑level galvanic isolation.

This rack‑mounted orange safety I/O module supports dual‑redundant configuration and comprehensive circuit diagnostics. Original production has been discontinued. It is widely stocked as aftermarket spare parts for petrochemical, power and oil & gas safety system maintenance and retrofitting.

Main Specifications

1. Brand: Yokogawa; Model:SDV144‑S13; Type:SIS Digital Input Module
2. Applicable System:ProSafe‑RS safety control system,16 dry‑contact input channels
3. Power Supply:24VDC, maximum response time 40ms, isolation withstand voltage 2kV AC
4. External Connection:Pressure clamp terminal block or dedicated MIL signal cable
5. Diagnostics:Field wire open/short‑circuit detection, LED channel status indicators
6. Operating Temperature:‑20℃ ~ +60℃, redundant hot‑swap capable design
7. Supply Status:Original production discontinued, available as tested surplus or refurbished spare parts

Core Functions

1. Detect contact‑type digital signals from emergency stop, limit switches and safety interlocks.
2. Galvanic isolation suppresses industrial electromagnetic interference and protects the safety backplane.
3. Continuous wiring fault diagnosis to identify broken cables and short‑circuit failures.
4. Redundant module pairing improves SIS availability for safety‑critical plant loops.
5. LED status indicators offer quick local channel troubleshooting and health inspection.
6. Act as safety signal front‑end acquisition hardware of Yokogawa ProSafe‑RS SIS.

Application Scenarios

1. Safety interlock signal collection for petrochemical, thermal power and natural gas plants.
2. Spare module replacement and routine maintenance of existing ProSafe‑RS racks.
3. SIS technical renovation and reliability upgrade of legacy hazardous‑area control cabinets.
4. On‑site troubleshooting and replacement of faulty safety digital input modules.
5. Spare‑parts stocking for system integrators and safety automation maintenance contractors.
6. Global aftermarket spare supply for technicians maintaining obsolete Yokogawa SIS hardware.

FAQ

1. Q:Which system does SDV144‑S13 belong to?
   A:It is a safety I/O module designed for Yokogawa ProSafe‑RS safety instrumented system.
2. Q:What kind of signal does it receive?
   A:It accepts dry contact switch signals from safety interlock and emergency stop devices.

3. Q:Is this safety I/O module still in original production?
   A:Yokogawa has discontinued this model, only tested surplus and refurbished spare units are available.