Yokogawa PSCCM22AAN 16418‑5314 Safety Digital Input Module

The Yokogawa PSCCM22AAN 16418‑5314 is a safety‑qualified digital input module for Yokogawa ProSafe‑PLC SIS safety instrumented systems. It acquires discrete on‑off status signals from field safety limit switches, interlock contacts and trip devices, and transmits valid digital status data to safety CPU for safety interlock and emergency shutdown logic processing.

This rack‑mount plug‑in module supports hot‑swap maintenance and integrates comprehensive channel self‑diagnosis for hardware and loop fault detection. It fits standard ProSafe‑PLC rack slots, widely installed inside SIS safety cabinets of petrochemical, refinery and power‑generation process sites.

Main Specifications

• Brand: Yokogawa; Model: PSCCM22AAN 16418‑5314; Type: SIS Safety Digital Input Module
• Applicable System: Yokogawa ProSafe‑PLC Safety Instrumented System
• Core Tasks: Discrete digital signal acquisition, channel self‑diagnosis, safety‑loop data transmission, hot‑swap replacement
• Signal Interface: Field digital signal terminals, internal backplane bus connector for ProSafe‑PLC rack
• Installation: Plug‑in slot‑mount on ProSafe‑PLC module rack, supports hot‑swap maintenance
• Signal Type: 24VDC discrete digital input for safety interlock field devices
• Operating Environment: 0℃ ~ +55℃, 5%‑95% RH non‑condensing, industrial anti‑vibration grade
• Mechanical: Standard ProSafe‑PLC module form‑factor, IP20 for cabinet‑internal installation
• Certifications: CE, TÜV certified for IEC61508 SIL‑3 safety‑related application

Core Functions

• Capture reliable 24VDC discrete status signals from safety‑related field switches, interlock contacts and trip devices within SIS control loops.
• Transfer digital state information to ProSafe‑PLC safety CPU via backplane bus for interlock judgment and emergency shutdown logic execution.
• Implement built‑in self‑diagnostic functions to detect channel short‑circuit, open‑circuit and internal hardware faults and report alarm status to system.
• Support hot‑swap module replacement without shutting down the whole SIS system, minimizing maintenance‑caused system downtime.
• Adopt safety‑grade signal processing architecture to guarantee signal integrity for safety‑critical interlock loops.
• Industrial‑hardened plug‑in hardware design ensures long‑term stable continuous operation inside safety‑instrumented control cabinets.

Application Scenarios

• Spare‑part replacement for Yokogawa ProSafe‑PLC SIS safety cabinets in petrochemical plants, refineries and power‑generation facilities.
• Digital signal acquisition hardware for ESD emergency shutdown and burner‑management safety instrumented interlock loops.
• Maintenance backup inventory for renovation and after‑sales maintenance projects of legacy Yokogawa safety‑PLC equipment.
• Matching digital input module cooperating with ProSafe‑PLC rack chassis, safety CPU and corresponding terminal units.
• Retrofit replacement for aged digital modules with channel failure, self‑diagnosis error and communication abnormal faults.

• Global aftermarket spare supply for automation maintenance teams maintaining Yokogawa safety‑control equipment worldwide.