Overview
The Yokogawa AFS20S is a field control station module designed for use in CENTUM VP and RIO architectures. It provides reliable control execution, I/O communication handling, and system diagnostics for continuous industrial operations.
General Information
Part Number: AFS20S
Manufacturer: Yokogawa
Country: Japan
Series: AFS / Field Control Station
Type: Field Control Unit
Mounting: Industrial cabinet mounting
Power Specifications
Supply Voltage: 24 V DC
Power Consumption: Approx. 300 VA (typical system load dependent)
Protection: Over-current protection, system-level surge protection
Communication & Interface
Network Support: V-net, RIO communication
Diagnostics: Built-in self-test, memory checks, watchdog monitoring
Reset Features: Supports hardware and software reset
Processing & Memory
Controller Function: Executes regulatory, sequence, and logic control
Backup: Battery-supported memory retention
Environmental
Operating Temperature: 0 to +50 °C
Humidity: 10–90% RH, non-condensing
Protection Rating: IP20 (when installed inside control cabinet)
Dimensions & Weight
Dimensions (L × W × H): 207 × 265.9 × 482.6 mm
Weight: 8 kg
