

The 1757-FFLD2 ALLEN-BRADLEY is a FOUNDATION Fieldbus Linking Device designed to bridge H1 fieldbus segments with high-speed control networks in industrial process environments. This module acts as a central interface, enabling seamless data exchange between field instruments and controllers like ControlLogix. With support for two H1 segments, it reduces wiring complexity and enhances system flexibility. The 1757-FFLD2 features redundant power inputs and communication paths, ensuring robust operation in critical applications. Its compact form factor and hot-swappable design simplify installation and maintenance, while integrated diagnostics provide real-time segment health monitoring. Ideal for oil and gas, chemical, and pharmaceutical industries, this device meets IEC 61158 standards for interoperability and reliability.
| Parameter | Specification |
|---|---|
| Model Number | 1757-FFLD2 |
| Product Type | FOUNDATION Fieldbus Linking Device |
| Supported Segments | 2 H1 Segments (31.25 kbit/s each) |
| Communication Protocol | FOUNDATION Fieldbus H1 (IEC 61158 Type 1) |
| Network Interface | ControlNet or EtherNet/IP (via backplane) |
| Power Supply | 24V DC nominal, redundant inputs |
| Power Consumption | Typical 10W, maximum 15W |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Relative Humidity | 5% to 95% non-condensing |
| Dimensions (H x W x D) | Approx. 130 mm x 50 mm x 120 mm |
| Weight | Approx. 0.45 kg (1.0 lb) |
| Redundancy Support | Yes – Power and communication |
| Diagnostics | LED indicators for segment status, power, and fault |
| Certifications | CE, UL, ATEX (Zone 2), IECEx |
| Compatibility | ControlLogix 1756, PlantPAx, and RSLogix 5000 |
| Wiring Termination | Removable screw terminals for fieldbus and power |
| Maximum Devices per Segment | 32 field instruments (H1 standard) |
| Mounting | DIN rail or panel mount |
| Protection Class | IP20 (enclosed cabinet required) |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22