Yokogawa Electric Corporation S9231DB-00 PCB Card

The Yokogawa S9231DB-00 / S9230DB-00 PCB Card is an internal I/O interface board that links Yokogawa system controllers to field I/O modules within DCS and safety architectures. It serves as an interface between safety I/O modules and the control system bus in CENTUM and ProSafe-type Yokogawa DCS environments, enabling reliable data exchange and stable monitoring of process variables. Key specifications include a 24 VDC power supply with ≤5 W power consumption, channel-to-channel isolation, operating temperatures from -20°C to +60°C, and humidity tolerance of 5–95% RH non-condensing. Compact and plug-in, the board measures approximately 3.3 × 10.8 × 13 cm and weighs around 0.25 kg, designed for internal installation within the control rack.