Siemens 6ES7960-1BC00-5AA5 Sync Cable

High-Availability Synchronization Cable for S7-1500H Systems

The Siemens 6ES7960-1BC00-5AA5 functions as a dedicated synchronization connecting cable for the SIMATIC S7-1500H redundant PLC system. This fiber-optic cable establishes the critical link between two S7-1500H CPUs for seamless data exchange. It ensures the mirrored operation of the CPUs, enabling bumpless switchover in case of a failure. The 2-meter length provides flexibility for mounting two CPUs within the same control cabinet.

Key Technical Specifications

Parameter	Specification
Product Model	Siemens 6ES7960-1BC00-5AA5
Brand	Siemens
Category	PLC Synchronization Cable / Accessory
Product Family	SIMATIC S7-1500H
Cable Type	Fiber-optic cable (FOC)
Cable Length	2 meters
Application	Connects two S7-1500H CPUs for redundancy
Function	High-speed synchronization of user program and process data
Connection	Fiber-optic connectors (plug-in)
Country of Origin	China
RoHS Conformity	Yes

Synchronization Capabilities and System Reliability

The Siemens 6ES7960-1BC00-5AA5 enables the automatic synchronization of the user program and I/O data between the two S7-1500H CPUs . This fiber-optic link ensures that both CPUs maintain the same state at all times. In the event of a CPU failure, the system performs a bumpless switchover without any interruption to the process. The cable’s fiber-optic construction guarantees high-speed, interference-free communication, which is essential for maintaining system integrity .

Physical Design and Installation

This synchronization cable comes as a complete, ready-to-use assembly with fiber-optic connectors. The 2-meter length is ideal for connecting two CPUs mounted in the same rack or in adjacent cabinets. Users plug the cable into the synchronization modules of the S7-1500H CPUs. The cable’s construction ensures reliable data transmission and signal integrity.

System Integration and Compatibility

This cable is a mandatory component for building a SIMATIC S7-1500H redundant system. It works in conjunction with two S7-1500H CPUs, such as the 6ES7517-3HP00-0AB0 . The cable is available in lengths of 1 m (6ES7960-1BB00-5AA5), 2 m (this product), and 10 m (6ES7960-1CB00-5AA5) .

Application Suitability

This sync cable is essential for high-availability applications that cannot tolerate downtime. Typical uses include continuous process plants, critical infrastructure, and high-value machinery. The cable ensures that the redundant system functions as intended, providing maximum system uptime.