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- Siemens
- 6AG1400-1JA11-7AA0
- Rack UR2
- USA
- 257.5 × 290 × 27.5 mm
- 1.844 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Siemens 6AG1400-1JA11-7AA0 SIPLUS S7-400 Rack UR2 is a rack assembly used to mount and electrically interconnect modules in a SIMATIC S7-400 automation system. It forms the physical foundation of the PLC station, providing the module positions and backplane connections required for CPUs, power supplies, communication modules, and signal-related hardware.
The UR2 rack is suited to S7-400 control cabinets where multiple modules need to be installed in a defined arrangement. In a process control cabinet, for example, the rack can accommodate the central controller and associated system modules while maintaining the required backplane communication between them.
For replacement work, the complete 6AG1400-1JA11-7AA0 order number should be checked against the existing rack, S7-400 configuration, installed modules, and cabinet layout. This is particularly important when replacing an older rack in an operating control system.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6AG1400-1JA11-7AA0 |
| Product Family | SIPLUS S7-400 |
| Rack Type | UR2 |
| Product Type | Rack |
| System | SIMATIC S7-400 |
| Primary Function | Module Mounting and Backplane Interconnection |
| Application | Industrial Automation / Process Control |
| Installation | S7-400 Control Cabinet |
| Dimensions | 257.5 × 290 × 27.5 mm |
| Weight | 1.844 kg |
Product Features
- Siemens SIPLUS S7-400 rack component.
- UR2 rack configuration for SIMATIC S7-400 systems.
- Provides physical mounting positions for S7-400 modules.
- Supports electrical interconnection between installed modules through the rack backplane.
- Suitable for centralized PLC and process-control cabinet installations.
- Useful for system replacement, cabinet refurbishment, and S7-400 expansion work.
Working Principle
The UR2 rack acts as the mechanical and electrical base of an S7-400 station. Individual S7-400 modules are mounted into the rack and connect to the internal backplane through their corresponding rack interfaces.
The backplane allows the installed modules to exchange system information without requiring separate point-to-point wiring between every module. Depending on the station configuration, the rack can accommodate the CPU, power supply, communication modules, and other compatible S7-400 components.
The rack itself does not execute the PLC program or process field signals. Its function is to provide the infrastructure through which the active S7-400 modules are mechanically secured and electrically interconnected.
Role in an S7-400 Control Architecture
The 6AG1400-1JA11-7AA0 UR2 Rack forms part of the hardware layer of an S7-400 automation station. The power supply and controller modules are installed into the rack, while the backplane establishes the internal connection required for communication between the modules.
In a process automation cabinet, the rack may serve as the central mounting platform for the S7-400 controller and associated communication or interface modules. A correctly configured rack helps maintain the required module arrangement and simplifies cabinet wiring and maintenance.
When modifying an existing station, the rack type and module arrangement should be considered together rather than treating the rack as an isolated mechanical component.
Industrial Applications
Process Control Systems
Used as part of S7-400 control cabinets for continuous and batch process automation.
Manufacturing Automation
Suitable for centralized PLC installations controlling machinery, production equipment, and plant utilities.
Power and Utility Systems
Can form the hardware base of S7-400 stations used for monitoring and controlling plant utility equipment.
Control Cabinet Refurbishment
Applicable when an existing S7-400 rack needs to be replaced during cabinet refurbishment or PLC hardware maintenance.
Installation and Maintenance
Before installation, verify that the rack type matches the intended S7-400 system configuration and that the cabinet provides sufficient space for the complete assembly.
Inspect the rack and backplane connection areas for contamination, mechanical damage, corrosion, or bent contacts before installing modules. Modules should be seated correctly and secured according to the S7-400 installation procedure.
During maintenance, avoid unnecessary disturbance of the backplane connections. If the rack is being replaced in an existing PLC station, document the original module positions before removal so that the replacement installation can reproduce the approved configuration.
After installation, check the power supply, CPU, communication modules, and other installed components before returning the automation system to operation.
Related Components
- Siemens SIPLUS S7-400 CPU modules
- Siemens S7-400 power supply modules
- Siemens S7-400 communication modules
- Siemens S7-400 signal modules
- S7-400 interface modules
- S7-400 expansion racks
- S7-400 backplane components
Recommended Related Models
For S7-400 control architectures, the following rack and system components are commonly relevant:
- Siemens 6AG1400-1JA01-7AA0 SIPLUS S7-400 Rack UR1
- Siemens 6AG1400-1TA01-7AA0 SIPLUS S7-400 Rack UR2
- Siemens 6AG1400-1JA11-7AA0 SIPLUS S7-400 Rack UR2
- Siemens 6AG1400-2JA01-7AA0 SIPLUS S7-400 Expansion Rack
- Siemens SIPLUS S7-400 CPU Modules
- Siemens SIPLUS S7-400 Power Supply Modules
Key Advantages
- S7-400-compatible rack architecture.
- Provides both module mounting and backplane interconnection.
- Suitable for centralized control cabinets.
- Supports organized installation of S7-400 system modules.
- SIPLUS variant for industrial automation applications.
Technical FAQs
What is the function of the UR2 rack in an S7-400 system?
The UR2 rack provides the physical mounting structure and internal backplane connection for compatible S7-400 modules. It forms the hardware base of the PLC station rather than performing a control function itself.
Does the 6AG1400-1JA11-7AA0 process PLC signals?
No. The rack does not independently process digital or analog field signals. Signal processing and control functions are handled by the appropriate S7-400 modules installed in the rack.
What should be checked before replacing an S7-400 UR2 rack?
The complete order number, rack type, installed module arrangement, backplane connections, power supply configuration, and cabinet installation should be checked before replacement.
Can existing S7-400 modules be transferred directly to a replacement rack?
Compatible modules can generally be reinstalled according to the approved S7-400 configuration, but technicians should inspect each module and its backplane connection before transferring it. The final configuration should be verified before the PLC is returned to service.