Description
Yokogawa AFV10D-S41101
Technical Specifications Dual redundant Ethernet interfaces; multiple serial communication ports; support for Yokogawa FCN control bus; real-time control cycle down to 10ms; built-in flash memory for control program storage; operating temperature -20°C to +70°C; supply voltage 24V DC; IP20 protection class; supports hot swapping of matched I/O modules in the rack.
Functional Features Executes continuous PID closed-loop control and discrete sequential logic programs for process plants. Communicates with local rack I/O modules through the backplane control bus to read measurement values and write control outputs. Transmits process data, alarm events and controller status to SCADA and HMI systems over Ethernet. Supports redundant network configuration to maintain communication continuity upon single network failure. Provides online program modification and online diagnostic functions through Yokogawa engineering software. Detects controller hardware faults and triggers preconfigured fail-safe logic.
Application Scenarios Oil and gas wellhead control systems, small and medium chemical plant process control, water and wastewater treatment automation, distributed pipeline monitoring stations, renewable energy power plant auxiliary control.
Performance Parameters Deterministic control loop execution with fixed cycle time; high data communication throughput on Ethernet links; stable program execution under continuous long-term operation; fast fault diagnosis of local I/O rack components.
Material Composition Main control PCB uses FR-4 flame-retardant multilayer printed circuit board; main processor and memory chips are industrial wide-temperature semiconductors; Ethernet and serial transceivers use high-reliability communication chips; backplane connector contacts are gold-plated copper alloy; controller housing is flame-retardant thermoplastic resin.
Structural Characteristics Vertical rack plug-in controller card for STARDOM FCN racks. Front panel includes power, run, network and fault LED indicators. Front side provides Ethernet ports and serial maintenance ports. Rear gold finger connector connects to the rack backplane for power and I/O bus communication. Side mechanical latch locks the controller into the rack slot.
Working Principle The controller runs user control programs stored in onboard flash memory at a fixed real-time cycle. It reads process values from I/O modules over the backplane bus, executes PID and sequence logic calculations, and sends control output commands back to I/O modules. Process variables and alarm events are packaged and transmitted to HMI and upper-level systems through Ethernet interfaces. The diagnostic circuit monitors power, processor operation and bus communication status continuously.
Installation Requirements Power off the FCN rack before controller installation. Insert the controller into the designated main slot and secure the mechanical latch. Connect Ethernet communication cables to the network ports and configure IP addresses in engineering software. Download control logic programs and parameter settings to the controller. Verify communication with I/O modules and HMI after commissioning.
Precautions for Use Implement anti-static protection during controller handling. Configure network redundancy according to site reliability requirements. Back up control programs and parameter files after commissioning. Do not remove the controller from the rack while the rack is powered unless hot-swap conditions are supported by the system design.
