Product Overview

The Siemens 6AG1960-1FB00-4AA5 Synchronization Submodule is a SIPLUS S7-1500 communication accessory designed to provide optical synchronization connections in compatible Siemens automation systems. It is based on the 6ES7960-1FB00-0AA5 synchronization module and features an optical interface for connecting supported S7-1500 controller configurations over fiber-optic links.

Synchronization is important in automation systems that require coordinated operation between controllers or distributed control stations. By providing a dedicated optical connection, this module supports the exchange of synchronization signals between compatible system components. Fiber-optic communication also offers advantages in installations where electrical isolation, longer cable distances, and reduced susceptibility to electromagnetic interference are important.

The 6AG1960-1FB00-4AA5 uses an LC optical connection with a nominal wavelength of 1310 nm. Depending on the selected fiber-optic cable, the supported connection distance can reach up to 10 km. This makes it suitable for automation installations where synchronization connections must extend beyond the distances commonly associated with short patch-cable arrangements.

As part of the SIPLUS product family, this module includes conformal coating on its printed circuit board assemblies. This coating provides additional protection against certain environmental influences that may be encountered in industrial control cabinets.

The module is designed for use with compatible SIMATIC S7-1500 system interfaces. It is not a standalone PLC or general-purpose Ethernet communication module. Before installation, engineers should verify the supported controller, interface type, fiber-optic cable, and system configuration.

Technical Specifications

Note: The dimensions and weight above are the supplied listing values. Confirm the exact hardware revision and packaging data when preparing a purchase order or shipment.

Function and Working Principle

The primary function of the 6AG1960-1FB00-4AA5 is to provide an optical synchronization connection for compatible S7-1500 automation configurations. It works as an interface component within the controller system rather than performing independent PLC logic processing.

1. Optical Synchronization

In distributed automation architectures, multiple controllers or system components may need to maintain coordinated operation. A synchronization connection allows compatible devices to exchange timing-related signals through a dedicated interface.

The 6AG1960-1FB00-4AA5 provides this connection through an optical interface. The fiber-optic link carries the synchronization signal between supported system components without relying on a conventional copper electrical connection.

2. Fiber-Optic Signal Transmission

The module uses an LC optical connector and operates at a nominal wavelength of 1310 nm. Fiber-optic transmission allows synchronization links to extend over longer distances, depending on the fiber type and installation conditions.

The specified maximum distance is up to 10 km. The actual achievable distance depends on the optical fiber, connector quality, attenuation, and the requirements of the complete system.

3. Electrical Isolation

Fiber-optic connections do not carry electrical current between the connected endpoints. This helps isolate the communication path from certain electrical disturbances and ground-potential differences that can affect copper connections.

This characteristic can be useful in industrial facilities where controllers are installed in separate cabinets, production areas, or buildings with different electrical environments.

4. Environmental Protection

The SIPLUS version includes conformal coating on its printed circuit board assemblies. This protective layer helps reduce the effects of certain environmental contaminants and moisture-related exposure.

Conformal coating does not make the module waterproof or suitable for unrestricted outdoor installation. The complete control cabinet must still provide appropriate protection against dust, liquids, condensation, and corrosive substances.

Role in Siemens SIMATIC S7-1500 Systems

The 6AG1960-1FB00-4AA5 is designed to operate within compatible S7-1500 synchronization arrangements. Its function is to provide the optical connection required by the supported controller interface.

1. Controller Synchronization

In automation systems with multiple controller components, synchronization helps maintain coordinated system operation. The optical submodule provides a dedicated link for the supported synchronization function.

The exact synchronization behavior depends on the CPU model, system architecture, configuration, and Siemens engineering requirements.

2. Distributed Automation Architecture

Large production facilities may distribute control equipment across multiple cabinets or technical areas. Fiber-optic synchronization connections can help link compatible system components without requiring long electrical signal cables.

This is particularly useful when the physical layout of the installation makes copper connections impractical.

3. Integration with S7-1500 Hardware

The module is based on the 6ES7960-1FB00-0AA5 synchronization submodule and is intended for compatible S7-1500 interfaces.

Before ordering, verify the CPU and interface specifications. Not every S7-1500 controller or communication slot necessarily supports this module.

4. Engineering Configuration

The module must be used within a supported Siemens hardware configuration. Engineers should check the relevant hardware documentation and engineering software requirements before commissioning.

Correct configuration ensures that the synchronization interface is recognized and used according to the intended system design.

Industrial Applications

The Siemens 6AG1960-1FB00-4AA5 is suitable for industrial automation installations where compatible S7-1500 equipment requires optical synchronization.

1. Large Manufacturing Facilities

Manufacturing plants often distribute controllers across production lines, machine areas, and centralized control cabinets. Optical synchronization connections can support coordinated operation between compatible system components.

The maximum supported distance of up to 10 km provides flexibility for installations with widely separated equipment.

2. Automotive Production Lines

Automotive manufacturing facilities use distributed automation systems for assembly, material handling, inspection, and process coordination.

Where supported S7-1500 configurations require synchronization over an optical link, this module can form part of the communication arrangement.

3. Process Automation

Process plants may contain multiple control areas distributed across large industrial sites. Fiber-optic links can help connect compatible automation equipment while reducing exposure to electromagnetic interference along the communication path.

The module’s suitability depends on the exact controller architecture and synchronization requirements.

4. Power and Utility Facilities

Industrial power facilities and utility installations may use distributed control cabinets located in separate equipment rooms. Optical synchronization can be useful where electrical isolation and longer communication distances are required.

The module should be selected only where the connected Siemens hardware supports the specified synchronization interface.

5. Industrial Infrastructure

Water treatment facilities, large production campuses, and other industrial infrastructure projects may have automation equipment spread across multiple locations.

The optical connection can support synchronization arrangements where the distance between system components exceeds the practical range of a short copper connection.

Installation and System Integration

Correct installation is essential for stable optical transmission and reliable synchronization.

1. Verify Controller Compatibility

Before installation, confirm that the target S7-1500 controller and its interface support the 6AG1960-1FB00-4AA5.

Check the controller’s hardware documentation, supported synchronization modules, firmware requirements, and engineering configuration.

2. Select the Correct Fiber-Optic Cable

The module uses an LC optical connector and operates at 1310 nm. The selected fiber must be compatible with the optical interface and required transmission distance.

For longer connections, verify the fiber type, attenuation, connector specifications, and link budget. Do not assume that every LC fiber patch cable supports the maximum 10 km distance.

3. Handle Optical Connectors Carefully

Optical connectors should be kept clean and protected from dust. Contamination on the connector end face can increase signal loss and cause communication problems.

Use suitable fiber-optic cleaning materials and avoid touching exposed connector surfaces. Protect unused ports with appropriate dust caps.

4. Observe Installation Orientation

The specified operating temperature range depends on installation orientation:

• Horizontal installation: 0 °C to 60 °C.
• Vertical installation: 0 °C to 40 °C.

Ensure that the actual cabinet temperature remains within the permitted range for the selected mounting orientation.

5. Check Environmental Conditions

The SIPLUS version includes conformal coating, but the surrounding installation must still provide appropriate environmental protection.

Avoid direct exposure to liquids, excessive condensation, conductive dust, and chemicals outside the product’s specified environmental limits.

6. Configure and Commission the System

After installation, configure the supported synchronization interface in the Siemens engineering environment. Verify that the hardware configuration is accepted and that the connected devices establish the intended synchronization link.

Check the optical cable route, connector seating, controller status, and relevant diagnostic information. Record the final configuration for future maintenance.

Compatible System Components

The 6AG1960-1FB00-4AA5 is intended to work as part of a compatible Siemens automation architecture.

The listed components are examples of equipment that may be used in a complete installation. They are not necessarily included with the synchronization submodule.

Alternative Models and Replacement Considerations

When replacing the 6AG1960-1FB00-4AA5, the optical interface, transmission distance, environmental protection, and controller compatibility should be considered.

A replacement should not be selected solely because it belongs to the same product family. Confirm the following details:

• Complete order number.
• Supported S7-1500 CPU and interface.
• Optical connector type.
• Optical wavelength.
• Fiber type and transmission distance.
• Environmental operating limits.
• Conformal coating requirements.
• Engineering software and hardware configuration.

The 6AG and 6ES product versions may have different environmental characteristics. Where the original installation requires the SIPLUS protection features, replacing it with a standard version should be evaluated carefully.

Key Advantages

Long-Distance Optical Synchronization

The module supports optical synchronization connections of up to 10 km, depending on the fiber-optic cable used.

LC Optical Interface

The LC connector provides a compact optical connection suitable for compatible fiber-optic installations.

1310 nm Optical Wavelength

The specified optical wavelength supports the intended fiber-optic synchronization interface.

Electrical Isolation

Fiber-optic transmission does not carry electrical current between connected endpoints, helping isolate the link from certain electrical disturbances.

SIPLUS Environmental Protection

The conformal coating provides additional protection for the printed circuit board assemblies in suitable industrial environments.

Compact Design

With supplied dimensions of 13 × 14 × 58 mm, the module occupies very little space within the supported automation interface.

Siemens S7-1500 Integration

The module is designed for compatible SIMATIC S7-1500 synchronization configurations, making it suitable for specific distributed automation architectures.

Technical FAQs

1. What is the Siemens 6AG1960-1FB00-4AA5?

It is a SIPLUS S7-1500 synchronization submodule that provides an optical synchronization interface for compatible Siemens automation systems.

2. What is the base model of this module?

The 6AG1960-1FB00-4AA5 is based on the Siemens 6ES7960-1FB00-0AA5 synchronization submodule. The SIPLUS version includes conformal coating for additional environmental protection.

3. What type of optical connector does it use?

It uses an LC optical connector.

4. What is the optical wavelength?

The specified optical wavelength is 1310 nm.

5. What is the maximum connection distance?

The maximum specified connection distance is up to 10 km, depending on the fiber-optic cable used and the complete link conditions.

6. Is this module compatible with Siemens S7-1500 systems?

It is designed for compatible SIMATIC S7-1500 synchronization interfaces. The exact CPU and interface compatibility should be checked against Siemens hardware documentation.

7. What is the difference between the 6AG and 6ES versions?

The 6AG model belongs to the SIPLUS product family and includes conformal coating. The underlying synchronization function is based on the corresponding 6ES model, but environmental protection characteristics may differ.

8. What is the operating temperature range?

For horizontal installation, the specified operating range is 0 °C to 60 °C. For vertical installation, it is 0 °C to 40 °C.

9. Does this module support ordinary Ethernet communication?

It is a synchronization submodule with an optical interface, not a general-purpose Ethernet communication module. Its role is to provide the supported S7-1500 synchronization connection.

10. What should be checked before purchasing?

Confirm the full order number, controller compatibility, optical connector, fiber type, transmission distance, physical condition, and whether the product is supplied with any required accessories.

Procurement and Maintenance Recommendations

When purchasing the Siemens 6AG1960-1FB00-4AA5, verify the complete order number and compare it with the installed module. The distinction between the SIPLUS version and the standard base model is important because the environmental protection features may affect replacement suitability.

For procurement, confirm whether the unit is new, unused, refurbished, or surplus. Request clear photographs of the label and connector area, and verify the product’s storage history and packaging condition where relevant.

During installation, protect the LC optical connector from dust and mechanical damage. Use a compatible fiber-optic cable and avoid excessive bending, pulling, or crushing of the fiber. Check the optical connection and controller diagnostics if synchronization problems occur.

For long-term maintenance, document the cable route, connected controller interfaces, module identification, and engineering configuration. Keeping this information available can simplify troubleshooting and future replacement work.

Conclusion

The Siemens 6AG1960-1FB00-4AA5 SIPLUS S7-1500 Synchronization Submodule provides an optical synchronization interface for compatible Siemens automation systems. Based on the 6ES7960-1FB00-0AA5, it features an LC optical connection, a 1310 nm wavelength, and a maximum supported connection distance of up to 10 km depending on the fiber used.

Its conformal-coated SIPLUS design makes it suitable for specified industrial environments where additional PCB protection is required. For maintenance, expansion, and replacement projects, engineers should verify the controller interface, optical cable specifications, transmission distance, and environmental requirements before installation.