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- Siemens
- 6AG1055-1MM00-7BA2
- Expansion Module
- Germany
- 35.5 x 90 x 58 mm
- 0.14 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Siemens 6AG1055-1MM00-7BA2 Expansion Module is a compact industrial automation component designed to extend the capabilities of compatible Siemens control systems. In a modular automation architecture, expansion hardware allows engineers to build a control solution around the specific requirements of a machine, production line, or industrial process.
Modern PLC systems often combine a central controller with additional hardware for system expansion, I/O processing, communication, and other automation functions. This modular approach provides flexibility during system design and makes it possible to scale the control architecture without replacing the entire PLC platform.
The Siemens 6AG1055-1MM00-7BA2 has supplied dimensions of 35.5 × 90 × 58 mm and a weight of 0.14 kg. Its compact form factor is suitable for industrial control cabinets and automation equipment where efficient use of available installation space is important.
The exact electrical specifications, interfaces, supported functions, controller compatibility, and system configuration should be verified against the applicable Siemens hardware documentation before installation or replacement.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6AG1055-1MM00-7BA2 |
| 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 | 0.14 kg |
| Installation | Compatible Siemens control equipment |
| Mounting | Industrial control-system installation |
| Typical Application | Machine and process automation |
The exact electrical ratings, I/O characteristics, communication functions, supported controller models, and environmental specifications should be confirmed according to the target Siemens system.
What Is the Siemens 6AG1055-1MM00-7BA2?
The Siemens 6AG1055-1MM00-7BA2 is an Expansion Module intended to operate as part of a compatible Siemens industrial automation system.
A PLC controller provides the central processing function of an automation system, but many applications require additional hardware to achieve the required control architecture. Expansion modules provide a method of extending the system while maintaining a modular hardware structure.
The 6AG1055-1MM00-7BA2 should therefore be considered a supporting component within a larger automation system rather than an independent PLC controller.
A simplified architecture can be represented as:
PLC Controller → Expansion Interface → 6AG1055-1MM00-7BA2 → Additional System Function
The actual system arrangement depends on the specific Siemens controller and compatible hardware configuration.
Expansion Module Working Principle
The general purpose of an expansion module is to provide additional functionality to a compatible automation architecture.
The main controller executes the application program and coordinates the automation process. The expansion module communicates with the controller through the appropriate system interface and contributes its supported function to the overall control system.
A simplified structure is:
Controller → System Interface → Expansion Module → Associated Automation Function
This modular approach allows engineers to configure a PLC system according to the requirements of a particular application.
Because the precise operating characteristics of the module depend on the host platform, the exact system interface and supported functions should be confirmed before commissioning.
Role in Industrial Automation
Expansion modules play an important role in scalable PLC system design.
A compatible industrial automation architecture may include:
- PLC CPU
- Power supply
- Expansion modules
- Digital input modules
- Digital output modules
- Analog input modules
- Analog output modules
- Communication modules
- HMI panels
- Industrial network equipment
- Sensors
- Actuators
- Motor control equipment
The 6AG1055-1MM00-7BA2 can form part of this modular structure, providing additional system capability according to the requirements of the host platform.
This approach can make system engineering more flexible while also simplifying maintenance and hardware replacement.
Industrial Applications
The Siemens 6AG1055-1MM00-7BA2 can be incorporated into compatible industrial automation installations across different industries.
Factory Automation
Manufacturing lines commonly use modular PLC architectures to coordinate sensors, actuators, drives, conveyors, and production equipment.
Machine Control
Machine builders can use expansion hardware to configure control systems according to individual machine requirements.
Packaging Machinery
Packaging systems often require multiple control functions and supporting hardware for sensors, actuators, and machine sequences.
Material Handling
Conveyor, sorting, warehouse, and logistics systems can use modular control architectures to manage distributed automation functions.
Process Automation
Industrial processes may require additional hardware as the number of monitored and controlled functions increases.
Infrastructure Automation
Water treatment, HVAC, utility, and building automation systems can use modular PLC architectures where additional system hardware is required.
PLC System Architecture
A typical modular automation architecture can be represented as:
Field Devices → I/O Hardware → PLC Controller → Expansion Hardware → HMI / Industrial Network
The actual arrangement depends on the Siemens control platform.
A typical control sequence may include:
- Sensors acquire information from the process.
- Input hardware transfers signals to the controller.
- The PLC CPU executes the application program.
- Expansion hardware contributes additional system functionality.
- Output hardware controls actuators and equipment.
- Communication devices exchange data with other automation systems.
- HMI equipment provides operator visualization and control.
The 6AG1055-1MM00-7BA2 operates within this broader architecture rather than functioning as a standalone controller.
Installation Guidelines
Correct installation is essential for reliable operation of the expansion module.
Verify the Complete Ordering Number
Before installation, confirm:
Siemens 6AG1055-1MM00-7BA2
The complete ordering number should be compared with the system’s approved hardware configuration.
Confirm System Compatibility
Before installation, verify compatibility with:
- Siemens controller family
- Expansion architecture
- Hardware configuration
- Interface requirements
- Firmware requirements
- Application requirements
Inspect the Module
Inspect the module before installation for:
- Mechanical damage
- Damaged connectors
- Cracked housing
- Contamination
- Bent connection points
- Transportation damage
Install Correctly
Install and secure the module according to the applicable Siemens installation procedure.
Do not apply excessive force to the housing or connectors.
Verify Connections
Where external wiring is required, verify the wiring and connection arrangement before applying system power.
Commissioning Procedure
After installation, the module should be commissioned together with the complete automation system.
A general commissioning procedure includes:
- Confirm the 6AG1055-1MM00-7BA2 ordering number.
- Verify compatibility with the controller.
- Inspect the module and connection points.
- Install the module correctly.
- Check the system wiring.
- Apply power according to the approved startup procedure.
- Check controller and module status information.
- Verify that the module is correctly recognized.
- Review diagnostic information.
- Confirm the hardware configuration.
- Test the relevant system functions.
- Verify stable operation under controlled conditions.
The exact commissioning procedure depends on the Siemens controller and engineering environment.
Troubleshooting the 6AG1055-1MM00-7BA2
Troubleshooting should consider the module together with the controller, power supply, configuration, and associated system hardware.
Module Not Recognized
If the controller does not recognize the module, inspect:
- Complete ordering number
- Module installation
- Connector seating
- Controller compatibility
- Hardware configuration
- Firmware compatibility
- System power
- Diagnostic information
A hardware-configuration mismatch can produce symptoms similar to a defective module.
Diagnostic Fault
If a diagnostic fault is displayed, record the exact diagnostic information before replacing components.
Check:
- Hardware configuration
- Module position
- System connections
- Power conditions
- Controller status
- Communication path
Intermittent Operation
Intermittent operation may be related to:
- Loose connections
- Mechanical vibration
- Wiring problems
- Electrical interference
- Power instability
- Configuration errors
- Hardware faults
The complete automation system should be inspected before identifying the expansion module as the root cause.
Fault After Replacement
If an error occurs after installing a replacement module, verify:
- Correct Siemens part number.
- Correct module position.
- Controller compatibility.
- Hardware configuration.
- Connector installation.
- Firmware requirements.
- Controller diagnostics.
Maintenance Recommendations
Regular inspection can help maintain reliable operation of the automation system.
Inspect the Module
Check the housing, connectors, mounting arrangement, and accessible surfaces for damage or contamination.
Maintain Clean Connections
Keep electrical connections clean and properly seated.
Control Cabinet Conditions
The installation environment should be maintained to prevent excessive dust, moisture, heat, and vibration.
Monitor Diagnostics
Repeated diagnostic messages should be investigated rather than ignored.
Maintain Configuration Backups
Keep current backups of the PLC hardware configuration and application data according to site maintenance procedures.
Physical Dimensions and Weight
The supplied physical specifications for the Siemens 6AG1055-1MM00-7BA2 are:
| Physical Parameter | Value |
|---|---|
| Length | 90 mm |
| Width | 35.5 mm |
| Depth | 58 mm |
| Weight | 0.14 kg |
The compact 35.5 × 90 × 58 mm form factor allows the module to be incorporated into space-conscious industrial control installations.
Its listed 0.14 kg weight also makes the module convenient to handle during installation, servicing, and replacement.
Replacement Considerations
When replacing the Siemens 6AG1055-1MM00-7BA2, verify the complete ordering number before removing or installing hardware.
Important identification details include:
- Manufacturer
- Full model number
- Product type
- Controller platform
- Hardware configuration
- Module position
- Interface requirements
- Firmware compatibility
- Application requirements
A Siemens module with similar dimensions should not automatically be treated as an interchangeable replacement.
Industrial automation modules may have different functions and system requirements despite having similar physical dimensions.
System Integration
The 6AG1055-1MM00-7BA2 may form part of a larger Siemens automation architecture 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 and control |
| Engineering Software | Supports programming and hardware configuration |
The actual system components depend on the controller platform and application.
Engineering Best Practices
Verify Compatibility Before Installation
Confirm that the 6AG1055-1MM00-7BA2 is supported by the intended Siemens controller and expansion architecture.
Maintain Accurate Hardware Configuration
The engineering project should accurately represent the physical hardware installed in the PLC system.
Document Module Position
Record the module location and function in electrical drawings and maintenance documentation.
Protect the Installation Environment
Maintain appropriate cabinet conditions and protect the module from excessive contamination, moisture, heat, and vibration.
Maintain Spare-Part Records
Keep the complete Siemens ordering number in the site’s spare-parts documentation.
Test After Replacement
After installation or replacement, check diagnostics and perform a controlled functional test before returning the equipment to normal operation.
Key Advantages
Compact Design
The 35.5 × 90 × 58 mm dimensions make the module suitable for compact control cabinets and automation equipment.
Low Weight
With a listed weight of 0.14 kg, the module is easy to handle during installation and maintenance.
Modular Expansion
The module supports a modular approach to automation system design.
Flexible Control-System Architecture
Expansion hardware allows compatible PLC systems to be configured according to machine and process requirements.
Industrial Automation Integration
The 6AG1055-1MM00-7BA2 can form part of a compatible Siemens automation architecture containing controllers, I/O equipment, communication hardware, and operator interfaces.
Technical FAQs
What is the Siemens 6AG1055-1MM00-7BA2?
The Siemens 6AG1055-1MM00-7BA2 is an Expansion Module designed for integration into compatible Siemens industrial automation systems.
What is the purpose of an expansion module?
An expansion module provides additional functionality within a compatible automation architecture, allowing the system to be configured according to application requirements.
What are the dimensions of the 6AG1055-1MM00-7BA2?
The listed dimensions are 35.5 × 90 × 58 mm.
How much does the module weigh?
The listed weight is 0.14 kg.
Is the 6AG1055-1MM00-7BA2 a PLC CPU?
No. It is an Expansion Module, rather than the primary PLC processing unit.
Can another Siemens expansion module replace it?
Not automatically. The complete ordering number, controller platform, hardware configuration, interface requirements, and application compatibility should be verified before substitution.
What should be checked if the module is not recognized?
Check the module installation, connectors, controller compatibility, hardware configuration, firmware requirements, system power, and diagnostic information.
How should the module be maintained?
Maintenance should include physical inspection, connector checks, appropriate cabinet environmental control, diagnostic monitoring, and maintenance of current hardware and software configuration records.
Conclusion
The Siemens 6AG1055-1MM00-7BA2 Expansion Module is a compact industrial automation component designed to extend the functionality of a compatible Siemens control architecture. Its modular design allows industrial control systems to be configured around the requirements of machines, production lines, and process applications.
With listed dimensions of 35.5 × 90 × 58 mm and a weight of 0.14 kg, the 6AG1055-1MM00-7BA2 is suitable for space-conscious industrial automation installations.
For installation, commissioning, troubleshooting, maintenance, or replacement, the complete 6AG1055-1MM00-7BA2 ordering number should be verified against the intended Siemens controller and hardware configuration. Correct compatibility verification, accurate hardware configuration, careful installation, and controlled commissioning are essential for reliable operation in industrial automation systems.