1. Small size structure, the module is usually designed based on high-density wiring.

2. Open and highly reliable industrial specifications.

3. Large scalability, suitable for a wide range of applications.

4. Universal and inheritable, modules from different manufacturers using the same standard are usually interchangeable. The same module series can be replaced and upgraded.

5. Easy to manage product life cycle, module manufacturers can provide supply for more than ten years through device selection and key device stocking.