The Delta AS04DA-A is a programmable logic controller (PLC) manufactured by Delta Electronics. It belongs to the DVP-SV2 series of PLCs, which is a compact and cost-effective solution for various industrial automation applications.

Here are some key features of the Delta AS04DA-A

1. High Performance: The AS04DA-A PLC offers a high-speed processing capability, allowing for efficient and precise control in demanding applications.

2. Compact Design: It has a compact size, which makes it suitable for installation in space-constrained environments.

3. I/O Expansion: The PLC supports various expansion modules, enabling easy customization and scalability based on specific application requirements.

4. Communication Interfaces: It includes multiple communication interfaces such as RS-485, Ethernet, and USB, providing connectivity options for integration with other devices and systems.

5. Built-in Digital and Analog I/O: The PLC has built-in digital and analog input/output channels, offering flexibility in connecting and controlling different types of external devices.

6. Programming Software: The DVP-SV2 series PLCs, including the DVP28SV311R, are programmed using Delta's proprietary software called WPLSoft. The software provides a user-friendly programming environment for configuring and managing the PLC's functions and behaviors.

7. Diverse Application Support: The Delta DVP-SV2 series PLCs are suitable for various industrial applications, including machine automation, motion control, temperature control, and more.