The Allen-Bradley 1756-SYNCH is a ControlLogix SynchLink communication bridge module designed to provide high-speed, deterministic time synchronization and data communication across multiple ControlLogix chassis. This module is essential for applications requiring coordinated motion control and drive synchronization, ensuring that distributed controllers operate with a shared time reference.
Features
Facilitates high-speed time synchronization for coordinated motion and drive control systems.
Supports a data transfer rate of 5 Mbps.
Equipped with one fiber optic channel featuring dedicated TX and RX ports for reliable, noise-immune communication.
Integrates directly into the ControlLogix backplane for seamless data exchange with the processor.
Optimized for high-performance industrial automation environments where precise timing is critical.
Technical Specifications
Product Model
1756-SYNCH
Module Type
SynchLink Communication Bridge
Data Rate
5 Mbps
Operating Wavelength
650 nm
Backplane Current (5V)
1,200 mA
Backplane Current (24V)
2.5 mA
Power Dissipation (Max)
6.19 Watts
Installation Guidelines
Ensure the ControlLogix chassis is powered down before inserting or removing the 1756-SYNCH module to prevent electrical damage.
Slide the module into the designated slot in the chassis and secure it using the top and bottom latches.
Handle fiber optic cables with care; avoid sharp bends or excessive tension to prevent signal degradation.
Ensure that the fiber optic connectors are clean and properly seated in the TX/RX ports.
Maintain proper grounding of the ControlLogix chassis to minimize electromagnetic interference (EMI) in the communication lines.
Verify that the module is correctly configured in the Studio 5000 Logix Designer software environment before operation.
FAQ
What is the primary purpose of the 1756-SYNCH module? The 1756-SYNCH is used to provide a common time reference (SynchLink) across multiple ControlLogix controllers, which is necessary for coordinated motion control applications.
Does this module require external power? No, the module draws its required power directly from the ControlLogix backplane.
What type of cabling does the 1756-SYNCH use? It utilizes fiber optic cabling for its communication interface, which provides high immunity to electrical noise in industrial environments.
