Product Overview
Upgrade your existing S7-400H redundant system with the Siemens 6ES7960-1AA04-0XA0 SIMATIC S7-400H Synchronization Module V4. This module replaces earlier sync submodules to ensure reliable data exchange between redundant CPUs over patch cable distances up to 10 meters. As a critical component in high-availability automation, the Siemens 6ES7960-1AA04-0XA0 minimizes synchronization delays and improves system integrity.
Technical Specifications
| Parameter |
Value |
| Input current from CPU, max. |
210 mA |
| Power loss, typ. |
1.1 W |
| Width |
25 mm |
| Height |
53 mm |
| Depth |
140 mm |
| Weight, approx. |
65 g |
Industry Applications
The Siemens 6ES7960-1AA04-0XA0 is purpose-built for SIMATIC S7-400H redundant systems found in process industries, power generation, and critical infrastructure. In a chemical plant where unplanned downtime is unacceptable, this synchronization module ensures both CPUs operate in lockstep with minimal latency. It also excels in water treatment and oil & gas applications where continuous uptime is mission-critical.
Installation & Setup
Mount the Siemens 6ES7960-1AA04-0XA0 in a designated slot of the S7-400H rack. Connect the patch cable between the sync submodules of the two CPUs; maximum cable length is 10 meters. Ensure proper ESD grounding during handling. After insertion, verify LED indicators to confirm synchronization status. No special tools or additional power supplies are required, as the module draws its current directly from the CPU backplane.
Maintenance & Reliability
The 6ES7960-1AA04-0XA0 is a solid-state module with no moving parts, offering long service life. Typical power loss of only 1.1 W ensures low thermal stress, reducing the need for frequent inspections. Periodically check that the patch cable and connectors remain secure. If synchronization errors occur, the module’s diagnostic LEDs provide immediate fault indication for quick troubleshooting.
Selection Guide & Purchasing Advice
Before purchasing, verify that your S7-400H system supports the V4 sync submodule. The Siemens 6ES7960-1AA04-0XA0 is compatible with all S7-400H CPUs that use fiber-optic patch cables up to 10 m. For reliable sourcing, visit ubest101, a trusted supplier of industrial automation spares, and confirm your exact configuration with their team to ensure compatibility.