Yokogawa Electric Corporation AS-S9231DB-00 IO Interface Card

The Yokogawa AS-S9231DB-00 IO Interface Card is a plug-in PCB that serves as the interface between safety I/O modules and the control system in Yokogawa CENTUM DCS cabinets and other distributed control systems. It supports signal interfacing and system integration for reliable communication over Yokogawa's proprietary safety bus in industrial automation environments, with common applications in oil & gas, chemical plants, and power generation. Technical specs: Manufacturer: Yokogawa; Model/Part Numbers: AS-S9231DB-00, AS-S9230DB-00, S9231DB-00; Product Type: PCB Card / I/O Interface Module; Function: Interface between safety I/O modules and control systems; System Compatibility: Yokogawa CENTUM DCS / safety systems; Communication: Proprietary safety bus interface; Power Supply: 24 VDC; Power Consumption: ≤5 W; Operating Temperature: -20°C to +60°C; Humidity Range: 5–95% RH (non-condensing); Isolation: Channel-to-channel isolation; Form Factor: Plug-in PCB card; Application: Signal interfacing and safety system communication; Status: Legacy / surplus component; Common Replacements: Yokogawa S9681DB Terminal Board Module, Yokogawa EA9A Interface Card, Yokogawa AIP413 Control Module.