1757-FFLDC4 AB ControlNet FOUNDATION Fieldbus Linking Device

Allen-Bradley 1757-FFLDC4 – Product Specification & Description 
Brand: Allen‑Bradley (Rockwell Automation)
Model: 1757-FFLDC4
Product Name: ControlNet FOUNDATION Fieldbus Linking Device
Dimensions: 165 × 133 × 89 mm (W×D×H)
Weight: 0.9 kg (2 lb 14.4 oz)
Country of Origin: United States
HS Code: 8537109900
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Humidity: 5–95% non‑condensing
Protection Rating: IP20 (open‑style)

Power Supply Input: 24 VDC (18–26.4 VDC), 450 mA, 9.6 W
Input Interfaces:
– 4 × FOUNDATION Fieldbus H1 ports (31.25 kbps)
– 1 × redundant ControlNet port pair
Output/Networking:
– Bridges 4 × H1 segments to ControlNet
– Supports up to 16 field devices per H1 (max 64 total)

Key Features:
– Manual ControlNet address via rotary switches
– Galvanic isolation (500 VAC test)
– LED status diagnostics
– Panel/DIN‑rail mountable
– Certifications: CE, UL, cUL, RoHS
Applications: Process automation, PlantPAx, oil & gas, chemical, power, water treatment