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- Siemens
- 6AG1055-1MB00-7BA2
- Expansion Module
- Germany
- 35.5 x 90 x 58 mm
- 0.167 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Siemens 6AG1055-1MB00-7BA2 Expansion Module is a compact industrial automation component designed to extend the functionality of compatible Siemens control systems. As part of a modular automation architecture, an expansion module allows the control system to accommodate additional hardware or application requirements without necessarily replacing the primary controller.
Modular PLC architectures are widely used in industrial automation because they allow system designers to build a control solution around the requirements of a particular machine or process. Depending on the application, the system may include a central controller together with expansion modules, I/O equipment, communication interfaces, and operator-interface devices.
The Siemens 6AG1055-1MB00-7BA2 has listed dimensions of 35.5 × 90 × 58 mm and a weight of 0.167 kg. Its compact size makes it suitable for control cabinets and automation installations where efficient use of available mounting space is important.
The exact electrical function, interfaces, supported system architecture, channel configuration, and controller compatibility should be confirmed against the intended Siemens automation platform before installation or replacement.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6AG1055-1MB00-7BA2 |
| Product Type | Expansion Module |
| Product Family | Siemens Industrial Automation |
| Primary Function | System expansion |
| Application | PLC and industrial automation systems |
| Dimensions | 35.5 × 90 × 58 mm |
| Weight | 0.167 kg |
| Installation | Compatible Siemens control equipment |
| Mounting | Industrial control-system installation |
| Typical Application | Machine and process automation |
The exact electrical ratings, supported interfaces, I/O characteristics, communication functions, environmental specifications, and controller compatibility should be verified against the relevant Siemens system configuration.
What Is the Siemens 6AG1055-1MB00-7BA2?
The 6AG1055-1MB00-7BA2 is a Siemens Expansion Module intended for integration into compatible industrial automation systems.
A PLC system normally contains a central processing unit that executes the control program. Depending on application requirements, additional hardware can be added to extend the system’s capabilities.
An expansion module forms part of this modular architecture and allows the automation system to be configured around the requirements of the machine or process.
A simplified architecture can be represented as:
PLC Controller → Expansion Interface → 6AG1055-1MB00-7BA2 → Extended System Function
The actual arrangement depends on the Siemens controller family and the system configuration.
The 6AG1055-1MB00-7BA2 should therefore be viewed as a supporting automation component rather than as a standalone PLC controller.
Expansion Module Working Principle
An expansion module works as part of a larger automation architecture.
The primary controller executes the application program and manages system operation. The expansion module communicates with the controller through the supported system interface and contributes its designated functionality to the control architecture.
The general information flow can be represented as:
Controller → System Interface → Expansion Module → Associated Automation Function
Depending on the specific host platform, the expansion module may support additional system resources or functions.
Because the precise function depends on the associated Siemens platform, engineers should verify the applicable hardware configuration before commissioning.
Role in Industrial Automation
Expansion hardware provides flexibility when designing industrial PLC systems.
The Siemens 6AG1055-1MB00-7BA2 can be incorporated into an automation architecture containing different functional layers, such as:
- PLC CPU
- Power supply
- Expansion modules
- Digital input modules
- Digital output modules
- Analog input modules
- Analog output modules
- Communication modules
- HMI equipment
- Industrial network components
- Field sensors and actuators
This modular structure allows the control system to be configured according to the number and type of functions required by the machine or process.
An expansion module can therefore contribute to system scalability and hardware organization while allowing the primary controller to remain at the center of the control architecture.
Industrial Applications
The Siemens 6AG1055-1MB00-7BA2 can be used as part of compatible industrial automation installations.
Factory Automation
Manufacturing systems commonly use modular PLC hardware to control production equipment, sensors, actuators, drives, and other machinery.
Machine Automation
Machine builders can use modular expansion hardware to adapt the control system to different machine configurations.
Packaging Systems
Packaging machinery may require multiple control functions for sensors, actuators, conveyors, and coordinated machine sequences.
Material Handling
Conveyors, sorting equipment, warehouse automation, and handling systems can benefit from modular control architectures.
Process Automation
Industrial process systems may require additional hardware to accommodate monitoring and control functions distributed throughout the process.
Infrastructure Control
Water, wastewater, HVAC, utility, and other infrastructure applications can use modular automation architectures where system expansion is required.
PLC System Architecture
A typical modular control architecture can be represented as:
Field Devices → I/O Hardware → PLC Controller → Expansion Hardware → HMI / Industrial Network
The exact arrangement depends on the Siemens platform.
The 6AG1055-1MB00-7BA2 forms part of the supporting hardware within this architecture.
For example:
- Field sensors collect process information.
- Input hardware transfers signals to the controller.
- The PLC CPU executes application logic.
- Expansion hardware provides additional system functionality.
- Output hardware controls actuators.
- Communication equipment transfers information between automation devices.
- HMI equipment provides operator monitoring and control.
This modular architecture makes it possible to build control systems according to the requirements of individual machines and processes.
Installation Guidelines
Correct installation is essential for reliable operation.
Verify the Part Number
Before installation, confirm the complete Siemens ordering number:
6AG1055-1MB00-7BA2
The full part number should be matched against the intended controller and hardware configuration.
Confirm Compatibility
The module should only be installed in a compatible Siemens automation system.
Important compatibility factors may include:
- Controller family
- Expansion architecture
- Hardware configuration
- Interface requirements
- Firmware compatibility
- Application requirements
Inspect the Module
Before installation, check for:
- Mechanical damage
- Damaged connectors
- Cracked housing
- Contamination
- Bent connection points
- Transportation damage
Install Carefully
Mount and connect the module according to the applicable Siemens installation procedure.
Avoid applying excessive force to the housing or connectors.
Verify Wiring
Where external wiring is required, verify all connections before energizing the control system.
Commissioning Procedure
After installation, the module should be commissioned together with the complete control system.
A general commissioning sequence includes:
- Confirm the 6AG1055-1MB00-7BA2 part number.
- Verify controller and system compatibility.
- Inspect the module and connectors.
- Install the module correctly.
- Confirm system wiring.
- Apply power according to the approved procedure.
- Check controller and module status information.
- Verify that the system recognizes the module.
- Review diagnostic information.
- Verify the hardware configuration.
- Test the relevant automation functions.
- Confirm stable operation under controlled conditions.
The exact commissioning process depends on the Siemens controller and engineering environment used in the installation.
Troubleshooting the 6AG1055-1MB00-7BA2
Troubleshooting should consider the expansion module together with the controller, power supply, wiring, configuration, and connected equipment.
Module Not Recognized
If the controller does not recognize the expansion module, check:
- Complete ordering number
- Module installation
- Connector seating
- Controller compatibility
- Hardware configuration
- Firmware compatibility
- System power
- Controller diagnostics
A configuration mismatch can produce symptoms similar to a physical hardware problem.
Diagnostic Error
If the controller reports a diagnostic error, record the exact diagnostic information before replacing the module.
Check:
- Module position
- Hardware configuration
- System connections
- Power conditions
- Communication path
- Controller status
Intermittent Operation
Intermittent problems may be caused by:
- Loose connections
- Mechanical vibration
- Wiring problems
- Electrical interference
- Power instability
- Configuration errors
- Hardware faults
The complete system should be inspected before concluding that the expansion module is defective.
Fault After Module Replacement
If a system fault occurs after replacing the module, verify:
- Correct Siemens part number.
- Correct hardware position.
- Controller compatibility.
- Hardware configuration.
- Connector installation.
- Firmware requirements.
- Diagnostic information.
Maintenance Recommendations
Regular maintenance can improve the reliability of the automation system.
Inspect the Module
Check the housing, connectors, mounting arrangement, and accessible surfaces for damage or contamination.
Maintain Clean Connections
Keep connectors and cabinet interiors clean and dry according to the requirements of the installed automation equipment.
Monitor Cabinet Conditions
Control excessive dust, moisture, heat, and vibration within the control cabinet.
Review Diagnostics
Repeated controller or module diagnostic messages should be investigated promptly.
Maintain Configuration Backups
Keep current copies of the automation hardware configuration and application data according to the plant’s maintenance procedures.
Physical Dimensions and Weight
The Siemens 6AG1055-1MB00-7BA2 has the following supplied physical specifications:
| Physical Parameter | Value |
|---|---|
| Length | 90 mm |
| Width | 35.5 mm |
| Depth | 58 mm |
| Weight | 0.167 kg |
Its compact dimensions allow the module to be incorporated into space-conscious industrial control installations.
The listed weight of 0.167 kg also makes the module relatively easy to handle during installation, service, and replacement operations.
Replacement Considerations
When replacing the Siemens 6AG1055-1MB00-7BA2, the complete ordering number should be verified.
Important identification details include:
- Manufacturer
- Full Siemens ordering number
- Product type
- Controller family
- Hardware configuration
- Module position
- Firmware compatibility
- Interface requirements
- Application requirements
A visually similar Siemens module should not automatically be considered a replacement.
Different automation modules can have similar physical dimensions while providing different electrical or system functions.
System Integration
The 6AG1055-1MB00-7BA2 can form part of a larger Siemens industrial automation system containing:
| Component | Typical Function |
|---|---|
| PLC CPU | Executes application logic |
| Power Supply | Provides system power |
| Expansion Module | Extends compatible system functionality |
| Digital Input Module | Acquires discrete signals |
| Digital Output Module | Controls discrete devices |
| Analog Input Module | Acquires analog process signals |
| Analog Output Module | Provides analog control signals |
| Communication Module | Provides industrial network connectivity |
| HMI | Provides operator monitoring |
| Engineering Software | Supports programming and hardware configuration |
The exact combination depends on the controller platform and application.
Engineering Best Practices
Confirm System Compatibility
Always verify that the 6AG1055-1MB00-7BA2 is supported by the target Siemens control system.
Maintain Accurate Hardware Configuration
The engineering project should accurately represent the physical hardware installed in the controller system.
Document the Module Location
Record the physical position and function of the expansion module in electrical drawings and maintenance records.
Protect the Installation Environment
Maintain appropriate cabinet conditions and protect the module from excessive dust, moisture, vibration, and contamination.
Maintain Replacement Records
Keep the complete Siemens ordering number in the site’s spare-parts documentation.
Perform Functional Testing
After installation or replacement, verify system diagnostics and perform a controlled functional test before returning the equipment to normal operation.
Key Advantages
Compact Form Factor
The 35.5 × 90 × 58 mm dimensions make the module suitable for compact industrial control installations.
Low Weight
With a listed weight of 0.167 kg, the module is easy to handle during installation and maintenance.
Modular Expansion
The module supports a modular approach to automation-system design, allowing compatible systems to be configured according to application requirements.
Flexible System Engineering
Expansion hardware can help engineers adapt control systems to different machine and process configurations.
Industrial Automation Integration
The 6AG1055-1MB00-7BA2 can form part of a compatible Siemens automation architecture containing controllers, I/O equipment, communication devices, and operator interfaces.
Technical FAQs
What is the Siemens 6AG1055-1MB00-7BA2?
The Siemens 6AG1055-1MB00-7BA2 is an Expansion Module intended for use in compatible Siemens industrial automation systems.
What is the purpose of the expansion module?
Its general purpose is to extend the capabilities of a compatible automation architecture. The exact function depends on the associated Siemens system and configuration.
What are the dimensions of the 6AG1055-1MB00-7BA2?
The listed dimensions are 35.5 × 90 × 58 mm.
How much does the module weigh?
The listed weight is 0.167 kg.
Is the 6AG1055-1MB00-7BA2 a PLC CPU?
No. It is an Expansion Module rather than the main PLC processor.
Can another Siemens expansion module replace it?
Replacement compatibility should be confirmed using the complete ordering number, controller platform, hardware configuration, interface requirements, and application requirements.
What should be checked if the module is not recognized?
Check the module installation, connectors, controller compatibility, hardware configuration, firmware requirements, system power, and controller diagnostics.
How should the module be maintained?
Maintenance should include inspection of the module and connectors, control of cabinet conditions, monitoring of diagnostic information, and maintenance of current system configuration backups.
Conclusion
The Siemens 6AG1055-1MB00-7BA2 Expansion Module is a compact industrial automation component designed to provide additional functionality within a compatible Siemens control architecture. By using modular expansion hardware, automation engineers can configure control systems according to the requirements of individual machines, production lines, and industrial processes.
With listed dimensions of 35.5 × 90 × 58 mm and a weight of 0.167 kg, the 6AG1055-1MB00-7BA2 provides a compact form factor for industrial control installations where efficient use of cabinet space is important.
For installation, commissioning, maintenance, and replacement, the complete 6AG1055-1MB00-7BA2 ordering number should be verified against the target Siemens controller and hardware configuration. Correct compatibility, accurate hardware configuration, proper installation, and controlled commissioning are essential for reliable operation in an industrial automation environment.