Is Your Modicon TM5 System Missing a Reliable Backbone?
When you are building or expanding a Modicon TM5 automation system, every component must work in perfect harmony. One missing or incompatible part can halt your entire operation. The Schneider TM5ACBM11 bus base solves this challenge by providing a secure, powered foundation for your I/O modules. It is a genuine Schneider Electric accessory designed specifically for the Modicon TM5 platform.

What Is the TM5ACBM11?
The TM5ACBM11 is a bus base, a crucial mechanical and electrical interface that connects your I/O modules to the backplane. It belongs to the Modicon TM5 range of products and is categorized as a communication accessory. This particular model is compatible with a wide array of TM5 modules, including remote transmitter modules, counter modules, 24V DC discrete modules, common distribution modules, and analog modules. Its white color and compact form factor make it a seamless addition to your existing setup.
Technical Specifications at a Glance
This bus base is engineered for performance and simplicity. Here are the key specifications you need to know:
| Specification | Value |
|—|—|
| Rated Supply Voltage | 24 V DC |
| Color | White |
| Product Weight | 0.02 Kg |
| Compatible Controllers | Modicon LMC058, Modicon M258 |
| Compatible Modules | Remote transmitter, Counter, 24V DC discrete, Common distribution, Analog |
| Package Dimensions (H x W x L) | 1.700 Cm x 5.400 Cm x 10.700 Cm |
| Package Weight | 27.000 G |
The 24 V DC rated supply ensures your modules receive stable power, which is critical for consistent performance in industrial environments. The lightweight design (0.02 Kg) simplifies handling and installation, reducing strain on your DIN rail.

Real-World Applications
The TM5ACBM11 is versatile enough for various automation tasks. For example, in a packaging line, you can use it to connect counter modules that track product counts, ensuring accurate batch sizes. In a material handling system, it can host analog modules that monitor sensor inputs for precise positioning. Its compatibility with both Modicon M258 and LMC058 controllers makes it a flexible choice for machine builders and system integrators.
Installation and Setup Guidance
Installing the TM5ACBM11 is straightforward. First, ensure your system is powered down. Then, mount the bus base onto a standard DIN rail in your control cabinet. The base snaps into place securely. After mounting, you can click your I/O modules onto the base. The mechanical keying ensures correct alignment, preventing improper insertion. Finally, connect the 24V DC power supply to the designated terminals. Always double-check polarity before powering up.
Maintenance and Reliability
Industrial environments can be harsh, but the TM5ACBM11 is built to last. To ensure long-term reliability, periodically inspect the bus base for dust accumulation or loose connections. Use a dry, lint-free cloth to wipe the exterior if needed. Do not use solvents or cleaners. Check that all mounted modules are firmly seated. A loose module can cause intermittent communication errors. By following these simple steps, you can extend the life of your bus base and avoid unexpected downtime.
Compatibility and Integration
The TM5ACBM11 is designed for seamless integration into Modicon TM5 systems. It is compatible with the Modicon LMC058 and Modicon M258 controllers. This means you can use it in a variety of applications, from simple machine control to complex motion control. The bus base supports a range of module types, giving you the flexibility to mix and match I/O as your needs evolve. Whether you are adding a few digital inputs or a high-speed counter, this bus base has you covered.
Selection and Purchasing Advice
Before ordering the TM5ACBM11, verify that your controller is either a Modicon M258 or LMC058. Also, confirm that your existing modules are compatible with this bus base. The TM5ACBM11 is sold individually. For large projects, consider ordering a few spares to minimize downtime in case of damage. When you are ready to purchase, SpareTechPLC offers genuine Schneider parts with fast shipping. Our team can help you confirm compatibility and ensure you get the right component for your system.
Frequently Asked Questions
Is the TM5ACBM11 compatible with all Modicon TM5 modules?
No, it is specifically compatible with remote transmitter modules, counter modules, 24V DC discrete modules, common distribution modules, and analog modules. It is not intended for other module types.
What is the rated supply voltage for the TM5ACBM11?
The rated supply voltage is 24 V DC. Ensure your power supply matches this specification to avoid damage.
Can I use the TM5ACBM11 with a Modicon M241 controller?
No, the TM5ACBM11 is designed for use with Modicon M258 and LMC058 controllers only. Using it with other controllers may cause compatibility issues.
How much does the TM5ACBM11 weigh?
The product weight is 0.02 Kg, making it very light and easy to handle during installation.
Does the TM5ACBM11 come with a warranty?
SpareTechPLC provides a warranty on all genuine Schneider parts. Please contact our sales team for specific warranty terms.