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Allen Bradley ControlLogix 1757-FFLDC2

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1757-FFLDC2

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The 1757-FFLDC2 from Allen Bradley is a Foundation Fieldbus linking device that integrates with ControlNet. It features dual H1 FOUNDATION Fieldbus interfaces, enabling the connection of up to 32 fieldbus devices across two networks.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1757-FFLDC2

ManufacturerAllen Bradley
Product TypeFoundation Fieldbus Linking Device
Product LineControlLogix
Part Number1757-FFLDC2
Weight1.56 lbs (0.71 kg)
ProtocolControlNet
Physical Interfaces2 x H1 FOUNDATION Fieldbus interfaces
Number of H1 Networks per Linking Device2 networks
Number of Fieldbus Devices per H1 Network16 devices
Number of Fieldbus Devices per Linking Device32 devices
Power Requirements450 mA at 24 VDC
Inrush Current1.5 Amps
Power Consumption9.6 Watts
Isolation Voltage50 V
Fieldbus Port Wiring CategoryCategory 2
ControlNet Port Wiring CategoryCategory 2
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The Allen Bradley 1757-FFLDC2 serves as a critical Foundation Fieldbus linking device tailored for seamless integration into ControlNet systems. This device is capable of managing two H1 FOUNDATION Fieldbus interfaces, effectively supporting a total of 32 fieldbus devices—16 on each H1 network.

For operation, it necessitates a power supply of 450 mA at 24 VDC, reaching an inrush current of 1.5 Amps during startup. Power consumption is recorded at 9.6 Watts under expected operating conditions. Furthermore, this linking device ensures robust isolation capabilities with a rated voltage of 50 V, enhancing safety and performance.

The wiring for the fieldbus ports is classified under Category 2, ensuring reliable signal quality and integrity. The same classification applies to the ControlNet port, promoting compatibility and ease of installation. In summary, the 1757-FFLDC2 is designed for efficient connection and management of Foundation Fieldbus devices, effectively optimizing network performance in industrial applications.