Turck FDN20-S0404G Distributed IO Station Module

Description:

The TURCK FDN20-S0404G Bus Stop is used in industrial automation systems as a compact distributed I/O station for connecting field signals to Device-Net networks. Commonly installed in machine-mounted control points, packaging systems, conveyor lines, automotive production equipment, and factory automation systems requiring decentralized digital input/output control. Maintenance teams, OEMs, and system integrators use this module for field I/O expansion, network integration, and machine retrofit applications.

Applications:

The TURCK FDN20-S0404G is used in Device-Net-based automation environments where compact distributed I/O is required close to the machine or process. Typical applications include automotive assembly lines, packaging machinery, material handling systems, conveyor automation, and industrial production cells requiring local digital input/output control and reduced cabinet wiring complexity.

Technical Specifications:

• Manufacturer: TURCK
• Manufacturer Part Number (MPN): FDN20-S0404G / F0220
• Product Type: Device-Net Compact Bus Stop / Distributed I/O Module
• Fieldbus Protocol: Device-Net
• I/O Configuration: 4 digital inputs / 4 digital outputs
• Input Type: PNP, 24 VDC
• Output Type: PNP transistor outputs
• Output Current: up to 0.5 A per channel (typical)
• Supply Voltage: 24 VDC (Device-Net powered, 18–26 VDC operating range)
• Fieldbus Transmission Rate: 125 / 250 / 500 kbps
• Connection Type: Screw terminal fieldbus and I/O connections
• Device Addressing: Rotary switch node addressing (0–63 range)
• Protection Rating: IP20
• Housing Material: Industrial-grade polymer housing
• Mounting Type: DIN rail / panel mount
• Operating Temperature: -40°C to +70°C
• Function: Distributed I/O node for Device-Net fieldbus systems
• Diagnostics: LED status indication for network and channel diagnostics
• Application Environment: Industrial control panels and machine-level automation systems

Common Replacements:

• TURCK FDN20-S0404G-0220 (same family variant)
• TURCK FDNQ-S0404G-MM Device-Net I/O Station
• Allen-Bradley 1794 FLEX I/O Device-Net Adapter System