1. Product Overview

The Schneider Electric TSXRKY12 Non-Extendable Rack is a 12-slot mounting rack designed for the Modicon Premium programmable logic controller (PLC) platform. It provides the mechanical mounting structure for compatible PLC processors, power supply modules, digital and analog I/O modules, communication modules, and application-specific modules.

As a fundamental component of an industrial automation system, the PLC rack holds the modules in their designated positions and provides the backplane connections required for communication and power distribution within the supported system architecture. A properly configured rack helps organize the controller hardware and simplifies installation, inspection, maintenance, and module replacement.

The TSXRKY12 is intended for a single-rack configuration. Unlike extendable racks designed for multi-rack arrangements, this non-extendable version is intended for installations in which the PLC modules are accommodated within one rack. Its 12-slot capacity gives system designers space to arrange the compatible processor, power supply, I/O modules, and other supported components according to the application requirements.

The rack is compatible with TSXPSY power supply modules, TSXP57 processors, I/O modules, and supported application-specific modules. The exact combination depends on the individual module formats, rack configuration, and system design. A double-format processor occupies more rack space than a single-format module, so available positions must be calculated before planning the installation.

The TSXRKY12 can be mounted in a control cabinet, on a machine frame, or on a panel. Supported mounting methods include four M6 fixing screws for panel mounting and clips for a symmetrical 35 mm DIN rail, subject to the installation arrangement and applicable mounting instructions.

For industrial facilities maintaining legacy Modicon Premium PLC systems, the TSXRKY12 is relevant to rack replacement, system restoration, and spare-parts procurement. The product has been discontinued in several markets, so buyers should verify its availability, physical condition, and compatibility with the existing PLC architecture before ordering.

2. Technical Specifications

Note: Dimensions and weight are provided according to the supplied product information. Verify the mounting dimensions, installed-module clearances, and exact rack configuration against the physical unit and applicable technical documentation.

3. Function and Working Principle

The TSXRKY12 provides the physical mounting structure and backplane interface for a compatible Modicon Premium PLC system. Its main function is to accommodate the required modules and support their connections within the rack architecture.

3.1 Module Mounting and Organization

A PLC system may contain a processor, power supply, digital inputs, digital outputs, analog modules, and communication equipment. These components must be installed in the correct positions and supported by a compatible rack.

The TSXRKY12 provides 12 slots for supported modules. Engineers can organize the available positions according to the installed processor, power supply, and I/O requirements.

The number of slots does not necessarily equal the number of modules that can be installed. Some modules occupy more than one slot, and the final configuration must account for module width and the platform’s installation rules.

3.2 Backplane Connections

The rack’s backplane provides the connection structure required by compatible Modicon Premium modules. When supported modules are installed correctly, they can exchange data and receive the necessary power through the system’s designated connections.

This arrangement reduces the need to create separate point-to-point connections between every rack-mounted component. The exact electrical and communication functions depend on the platform design and the modules installed.

The TSXRKY12 should not be treated as a generic mounting rail or universal PLC backplane. It is designed for the supported Modicon Premium architecture.

3.3 Processor and Power Supply Installation

A compatible processor executes the PLC application, while the power supply provides the electrical power required by the rack’s supported modules.

The TSXRKY12 accommodates compatible TSXP57 processor and TSXPSY power supply families. Their positions and physical formats must follow the applicable rack configuration rules.

Before installing modules, confirm their references and widths. This is especially important when a processor or other module occupies a double-format position.

3.4 I/O and Application Module Integration

Input and output modules connect the PLC control system to field devices. Digital input modules receive discrete signals, digital output modules control compatible loads, and analog modules handle supported continuous-value signals.

Application-specific modules may provide additional functions depending on the installed system.

The TSXRKY12 serves as the mounting and connection platform for compatible modules. It does not independently process field signals or determine control logic; these functions are performed by the installed modules and processor.

3.5 Mechanical Support and Installation

The rack can be installed inside a control cabinet, on a suitable panel, or on a machine frame. Supported mounting arrangements include panel mounting with four M6 screws and compatible clips for a symmetrical 35 mm DIN rail.

The mounting surface must provide adequate mechanical support. Installers should also allow sufficient clearance for module removal, wiring, ventilation, and maintenance access.

4. Role in Industrial Automation Systems

The TSXRKY12 is a structural component of the Modicon Premium PLC architecture. Although it does not execute the application program itself, it enables the system’s compatible modules to be installed and connected in an organized arrangement.

Module mounting: The rack provides the physical positions required for compatible processors, power supplies, I/O modules, and application-specific modules.

Backplane connectivity: It supports the internal connections required by the supported Modicon Premium system.

System organization: The 12-slot arrangement helps engineers allocate space for the PLC components required by the application.

Maintenance access: A clearly arranged rack makes it easier for maintenance personnel to identify modules, inspect connections, and replace supported components.

Cabinet integration: Its mounting options allow installation in suitable control cabinets, on panels, or on machine frames.

Legacy system support: A correct rack replacement can help restore an established Modicon Premium PLC installation when the original rack is damaged or requires replacement.

The overall performance and reliability of the PLC depend on more than the rack itself. Correct module selection, a suitable power supply, secure mounting, proper grounding, wiring quality, and environmental conditions all contribute to reliable operation.

5. Industrial Applications

5.1 Manufacturing and Assembly Lines

Manufacturing equipment commonly uses PLCs to coordinate production sequences, monitor machine states, and control connected devices.

The TSXRKY12 can provide the mounting platform for a compatible Modicon Premium controller used in these applications. Its 12-slot configuration allows supported control components to be arranged within a single rack, subject to the physical widths and system requirements of the installed modules.

5.2 Packaging Machinery

Packaging machines often require a PLC processor, digital I/O, analog modules, and communication components to manage equipment sequences.

The TSXRKY12 can accommodate compatible modules in a Modicon Premium installation. A properly organized rack supports service access and makes it easier to identify individual components during maintenance.

5.3 Material Handling and Conveyor Systems

Conveyor and material-handling systems may use PLCs to coordinate sensors, motors, actuators, and operating sequences.

The TSXRKY12 provides the rack structure for the compatible PLC hardware that performs these control functions. The rack itself does not control conveyor operation; it supports the modules responsible for processing and communicating control data.

5.4 Process Automation

Industrial process equipment may require digital and analog I/O modules, communication components, and a central processor.

A compatible Modicon Premium installation using the TSXRKY12 can accommodate the required modules when the rack configuration and module capacity are appropriate for the application.

5.5 Water and Utility Systems

Legacy PLC equipment may be used in pumping stations, water-treatment systems, ventilation equipment, and industrial utilities.

Where a Modicon Premium system remains in service, the TSXRKY12 may be relevant for maintenance or replacement of the original rack. Before installing a replacement, verify the processor, power supply, module references, and wiring arrangement.

5.6 Maintenance of Legacy PLC Installations

For facilities operating older Modicon Premium equipment, the rack may be an important spare part when the original mounting structure or backplane is damaged.

Replacing the rack requires careful planning because all installed modules must be compatible with the replacement and reinstalled correctly. The control program and configuration should be preserved, and the system should be tested before returning to normal operation.

6. Installation and System Integration

Correct rack installation is important for mechanical stability, electrical safety, and reliable communication between compatible PLC modules.

6.1 Verify the Rack Configuration

Before installation, confirm that the TSXRKY12 is appropriate for the existing Modicon Premium system and its intended single-rack configuration.

Check the installed processor, power supply, I/O modules, and application-specific modules. Confirm the width of each module and calculate the number of slots required.

A 12-slot rack does not guarantee that every combination of 12 modules will fit. Double-format modules and other installation restrictions must be considered.

6.2 Select a Suitable Mounting Method

The TSXRKY12 supports mounting with four M6 screws on a suitable panel or with compatible clips for a symmetrical 35 mm DIN rail.

For panel mounting, verify the hole locations and use suitable fasteners for the panel material and installation conditions. For DIN-rail mounting, confirm that the rail and clips are compatible and that the rack is secured correctly.

The mounting structure should be able to support the rack and the installed modules without excessive vibration or mechanical movement.

6.3 Allow Adequate Clearance

Provide enough space for module installation, removal, cable routing, and maintenance. Ensure that nearby cabinet components do not obstruct access to connectors or prevent the installation from meeting its ventilation requirements.

Where the rack is installed in an enclosure, consider the thermal load of the complete PLC system and the ambient temperature expected during operation.

6.4 Verify Module Compatibility

Confirm that the processor, power supply, and I/O modules are approved for the TSXRKY12 rack and the intended configuration.

The compatible product families include TSXP57 processors, TSXPSY power supplies, I/O modules, and supported application-specific modules. This does not mean that every product within these families can be used in every arrangement.

Check the individual product references and the platform’s configuration rules before installing the modules.

6.5 Check Grounding and Electrical Connections

Follow the applicable installation instructions for rack grounding and the grounding of the complete PLC assembly.

Inspect the rack, module connectors, fasteners, and wiring before energizing the system. Damaged connectors, loose mechanical fittings, or incorrect installation may affect system reliability.

Electrical installation and testing should be performed by qualified personnel following the site’s approved safety procedures.

6.6 Reinstall and Test the PLC System

If the rack is replacing an existing unit, document the original module arrangement and label relevant wiring before dismantling the system.

After installation, verify that all modules are seated correctly and that the processor, power supply, I/O, and communication components operate as expected. Check diagnostic indicators and test the application before returning the equipment to production.

7. Compatible System Components

The TSXRKY12 is designed for supported Modicon Premium components. The following table summarizes the main component categories that may be installed in a compatible configuration.

This table identifies general component categories rather than guaranteeing that all modules can be installed together. The final arrangement must comply with the applicable Modicon Premium configuration rules.

8. Recommended Alternative and Replacement Models

The TSXRKY12 is a discontinued Modicon Premium rack. When selecting a replacement, it is important to distinguish between maintaining the original platform and migrating to a newer automation system.

TSXRKY12EX: Legacy Rack Comparison

The TSXRKY12EX is an extendable rack designed for Modicon Premium multi-rack configurations. Although its slot count is also 12, its intended role differs from the non-extendable TSXRKY12.

The two models should not be treated as automatically interchangeable. Confirm the original rack architecture and the requirements of the existing installation before selecting either product.

BMXXBP1200: Newer Platform Replacement Candidate

The BMXXBP1200 is a 12-slot backplane for the Modicon X80 family and is listed by Schneider Electric as a recommended replacement for the TSXRKY12.

However, Modicon X80 is a different automation platform. The BMXXBP1200 does not provide a direct drop-in replacement for the Modicon Premium rack. A migration may require compatible X80 processors, power supplies, I/O modules, application conversion, wiring changes, and commissioning work.

Before choosing the BMXXBP1200, evaluate the complete control architecture and verify that the proposed replacement meets the requirements of the installation.

9. Key Advantages

12-Slot Rack Configuration

The TSXRKY12 provides 12 slots for compatible Modicon Premium modules. This capacity supports a range of single-rack PLC configurations, depending on the widths and requirements of the installed components.

Support for Compatible Premium Modules

The rack is designed to accommodate supported TSXP57 processors, TSXPSY power supplies, I/O modules, and application-specific modules.

Flexible Mounting Options

The rack supports panel mounting with four M6 screws and mounting with compatible clips on a symmetrical 35 mm DIN rail, allowing integration into suitable industrial installations.

Organized Hardware Installation

A dedicated rack provides defined mounting positions and backplane connections for the supported modules, helping keep the PLC assembly organized.

Suitable for Legacy System Maintenance

For facilities operating existing Modicon Premium equipment, sourcing the correct rack can help maintain the established hardware configuration and support repairs.

Clear Product Identification

The TSXRKY12 model number and 12-slot description help maintenance teams identify the required component and distinguish it from extendable racks or products from other PLC platforms.

10. Technical FAQs

Q1: What is the Schneider TSXRKY12?

The TSXRKY12 is a non-extendable 12-slot rack for the Schneider Electric Modicon Premium PLC platform. It provides the mounting structure and backplane connections for supported processors, power supplies, I/O modules, and application-specific modules.

Q2: How many slots does the TSXRKY12 have?

The rack has 12 slots. The number of modules that can be installed depends on their physical width and the applicable Modicon Premium configuration rules.

Q3: Is the TSXRKY12 extendable?

No. The TSXRKY12 is designed for a single-rack configuration. The TSXRKY12EX is an extendable version intended for multi-rack configurations, but the two products are not automatically interchangeable.

Q4: Which PLC components are compatible with the TSXRKY12?

Supported component categories include TSXP57 processors, TSXPSY power supplies, I/O modules, and application-specific modules. The exact module references and arrangement must be verified.

Q5: What are the dimensions and weight of the TSXRKY12?

The supplied dimensions are 568 × 205 × 56 mm, and the supplied weight is 2.31 kg. Verify the physical measurements and mounting clearances against the actual rack before installation.

Q6: How can the TSXRKY12 be mounted?

The rack supports mounting with four M6 screws on a suitable panel or with compatible clips on a symmetrical 35 mm DIN rail. Confirm the required hardware and mounting instructions for the specific installation.

Q7: What is the protection rating of the TSXRKY12?

The rack is specified with an IP20 protection rating. This does not make it waterproof or suitable for direct exposure to liquids or outdoor conditions without an appropriate enclosure.

Q8: Is the TSXRKY12 discontinued?

Schneider Electric lists the TSXRKY12 as discontinued in several markets. Lifecycle dates can vary by region, so confirm current availability and service status for the relevant market.

Q9: Can the BMXXBP1200 replace the TSXRKY12 directly?

No. The BMXXBP1200 is a recommended replacement candidate from the Modicon X80 platform, not a direct plug-in replacement for the Modicon Premium rack. A platform migration and compatibility assessment are required.

Q10: What should be checked before ordering the TSXRKY12?

Confirm the full model number, rack configuration, slot count, dimensions, mounting method, product condition, and compatibility with the installed processor and modules. For replacement projects, document the original rack layout before ordering.

11. Procurement and Replacement Considerations

Since the TSXRKY12 has been discontinued in several markets, procurement should focus on accurate identification and compatibility.

Confirm the model number. Ensure that the requested product is TSXRKY12 rather than TSXRKY12EX or a rack from another PLC family.

Verify the rack configuration. The TSXRKY12 is a non-extendable rack for a single-rack configuration. Check that this matches the architecture of the existing system.

Check the physical condition. If purchasing a used or refurbished rack, inspect the frame, module slots, backplane connectors, mounting points, and signs of corrosion or mechanical damage.

Verify module compatibility. Confirm that the existing processor, power supply, I/O modules, and application-specific modules are supported by the replacement rack.

Check mounting requirements. Confirm the panel or DIN-rail mounting arrangement, fixing hardware, clearances, and available cabinet space.

Plan for discontinued equipment. Evaluate whether sourcing another legacy rack is appropriate for the expected service life of the control system or whether a longer-term modernization project is required.

Assess platform migration carefully. A transition to Modicon X80 using BMXXBP1200 involves more than changing the backplane. Verify the processor, power supply, I/O, wiring, program, and commissioning requirements before committing to a migration.

12. Conclusion

The Schneider Electric TSXRKY12 Non-Extendable Rack is a 12-slot mounting rack designed for single-rack configurations within the Modicon Premium PLC platform. It supports compatible processors, power supply modules, I/O modules, and application-specific modules, providing the physical structure and backplane connections required for an organized automation system.

For industrial maintenance teams and spare-parts buyers, the key considerations are the exact rack reference, slot arrangement, module compatibility, mounting method, and physical condition. Because the TSXRKY12 is discontinued in several markets, procurement should also take into account the long-term maintenance requirements of the existing PLC installation.

Although Schneider Electric recommends the BMXXBP1200 as a replacement candidate, that product belongs to the Modicon X80 platform and is not a direct plug-in replacement. Careful compatibility assessment and engineering planning are essential when deciding whether to retain the legacy rack or migrate to a newer automation architecture.