Delta AS228P-A Large Capacity 28-point Sourcing Input Module

The Delta AS228P-A Large Capacity 28-point Sourcing Input Module stands as a robust and versatile component within the AS200 series of compact, modular, mid-range PLCs. Engineered for high performance and seamless integration into diverse automated equipment, this module is a strategic choice for applications demanding precision, speed, and scalability. At its core, the AS228P-A features Delta's proprietary 32-bit System on Chip (SoC) CPU, enabling an impressive execution speed of 40,000 steps per millisecond. This processing power is crucial for handling complex tasks and ensuring efficient operation in demanding industrial environments.

The module offers 28 points of I/O, specifically 16 digital inputs (DI) and 12 digital outputs (DO), with the DO type being PNP sourcing, a common configuration in the European market. Its capacity to support up to 32 extension modules extends the total I/O points to 1,024, providing significant room for system expansion. For motion control, the AS228P-A excels with support for up to 6 axes via 200 kHz pulse control and can manage up to 8 axes through the CANopen motion network, making it ideal for precise positioning tasks. Connectivity is a strong suit, boasting built-in USB, Ethernet, dual RS-485 ports, and a CANopen port, facilitating easy integration into various industrial networks and seamless communication with devices like Delta's A2 and B3 servo drivers. Programming is streamlined through Delta's ISPSoft or DIADesigner software, supporting multiple IEC 61131-3 compliant languages, including Ladder Diagram (LD), Structured Text (ST), Sequential Function Chart (SFC), and Continuous Function Chart (CFC). This flexibility empowers engineers to develop sophisticated control strategies tailored to specific application needs.

Product Specifications

| Feature                  | Specification                                         |

| :----------------------- | :---------------------------------------------------- |

| Model Name               | AS228P-A                                              |

| Series                   | AS200 Series                                          |

| CPU Type                 | 32-bit SoC                                            |

| Execution Speed          | 40,000 steps/ms                                       |

| Program Capacity         | 64k steps                                             |

| Data Memory              | 64k words                                             |

| Built-in I/O             | 16 Digital Inputs (DI), 12 Digital Outputs (DO)       |

| Output Type              | PNP Sourcing Transistor                               |

| Max. Extension Modules   | 32                                                    |

| Max. I/O Points          | 1024                                                  |

| High-Speed Pulse Output  | 6 axes @ 200 kHz                                      |

| High-Speed Counter       | 4 channels @ 200 kHz                                  |

| CANopen Motion Control   | Up to 8 axes                                          |

| Built-in Communication   | USB, Ethernet, 2x RS-485, CANopen                     |

| Programming Software     | ISPSoft, DIADesigner                                  |

| Programming Languages    | LD, ST, SFC, CFC, C Language                          |

| Power Supply             | 24 VDC (typically)                                    |

| Operating Temperature    | -20°C to 60°C                                         |

| Ingress Protection       | IP20                                                  |

| Dimensions (H x D)       | 88 mm x 95 mm (excluding plug-in terminals)           |

Core Features & Market Positioning

The Delta AS228P-A distinguishes itself through its high-speed processing capabilities, generous I/O count, and advanced motion control features, positioning it as a powerful yet cost-effective solution for demanding automation tasks. Its rackless, modular design simplifies installation and maintenance, while the plug-in, screwless (push-in) terminals reduce wiring time and effort. The inclusion of multiple communication interfaces, such as Ethernet and CANopen, ensures seamless integration into existing industrial networks and facilitates communication with a wide array of peripherals, including Delta's own servo drives. This combination of performance, flexibility, and ease of use makes the AS228P-A a compelling choice for system integrators and machine builders looking to optimize their automated systems and achieve higher productivity. The module's robust construction and ability to operate within a wide temperature range further enhance its appeal for deployment in challenging industrial environments.

Key Application Scenarios

The Delta AS228P-A finds its niche in a variety of automated equipment applications where precision and efficiency are paramount. Its strong motion control capabilities make it particularly well-suited for:

  Electronics Manufacturing: High-speed pick-and-place machines, automated assembly lines, and testing equipment benefit from the precise axis control and rapid processing offered by the AS228P-A.  Labeling and Packaging Machinery: Accurate positioning for label application, precise control of conveyor systems, and synchronized movements in packaging processes are well within the capabilities of this module.  Textile Machinery: Complex sequential operations and synchronized movements required in modern textile equipment can be efficiently managed.  General Automation: The flexibility of its I/O and communication options allow for its use in a broad spectrum of custom machinery and automation projects requiring reliable control.

Practical System Integration Guidance

Integrating the Delta AS228P-A into an industrial control system is facilitated by its modular design and user-friendly communication interfaces. The module supports direct DIN rail mounting with patented clips for rapid vertical installation, minimizing panel space and setup time. Wiring is simplified thanks to the plug-in, screwless (push-in) terminals, which reduce labor and the potential for wiring errors. For programming, Delta's ISPSoft software provides a comprehensive environment for configuring hardware, setting up network communication, performing system diagnostics, and planning motion control tasks. The AS228P-A supports multiple programming languages, allowing engineers to choose the most suitable approach for their application, whether it's graphical ladder logic or text-based structured text. For communication protocols, it supports Modbus, Modbus TCP, EtherNet/IP, and CANopen, enabling robust data exchange and integration with other industrial devices.

Operation and Risk Mitigation

Safe and efficient operation of the Delta AS228P-A relies on proper installation, programming, and adherence to operational guidelines. The module's robust design contributes to its reliability in industrial settings. In terms of troubleshooting, Delta provides comprehensive manuals that detail error codes and LED indicators for CPU modules. For instance, blinking LED indicators can signify system program errors or warnings, necessitating investigation into the specific error code. Common issues might involve incorrect program downloads or communication errors between the software and the PLC, which can often be resolved by re-downloading programs and parameters or ensuring firmware and software are up-to-date. While the AS228P-A itself is designed for industrial environments, users should always follow standard electrical safety practices during installation and maintenance, including proper grounding and de-energizing circuits before performing any physical work. The IP20 rating indicates protection against solid objects greater than 12.5mm but not against water, so it should be protected from moisture in its operating environment.

Scalability & Long-Term Value

The Delta AS228P-A is designed with future expansion and long-term value in mind. Its modular architecture allows for significant scalability, supporting up to 32 extension modules to reach a total of 1,024 I/O points, enabling systems to grow alongside evolving production demands. Furthermore, the AS228P-A can be integrated into more complex industrial networks and IIoT (Industrial Internet of Things) solutions. With optional communication cards like the AS-FFTP01, it can realize advanced IIoT applications such as remote data access, visualization, connectivity to SCADA systems via OPC-UA, and cloud connectivity using MQTT. This forward-looking capability ensures that investments in Delta AS228P-A-based systems can adapt to the trends of smart manufacturing and Industry 4.0, preserving their value over time and providing a platform for continuous improvement and data-driven optimization.

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Frequently Asked Questions (FAQs)

Q1: What are the primary advantages of the Delta AS228P-A module?

The Delta AS228P-A offers exceptional processing speed with its 32-bit SoC CPU. It provides a high density of 28 built-in I/O points. Its expandability supports up to 1,024 I/O points with 32 modules.

Q2: How does the AS228P-A handle motion control applications?

This module supports precise motion control with up to 6 axes via 200kHz pulse outputs. It can also manage up to 8 axes using the CANopen motion network protocol. This makes it suitable for accurate positioning tasks.

Q3: What communication protocols are supported by the Delta AS228P-A?

The AS228P-A features built-in USB, Ethernet, dual RS-485 ports, and a CANopen port. It supports protocols like Modbus, Modbus TCP, and EtherNet/IP for versatile networking.

Q4: Can the AS228P-A be easily integrated into existing systems?

Yes, its multiple communication ports (Ethernet, RS-485, CANopen) facilitate seamless integration. The plug-in terminals simplify wiring and reduce installation time for quicker deployment.

Q5: What programming languages are compatible with the AS228P-A?

The module is programmed using Delta's ISPSoft or DIADesigner software. It supports standard IEC 61131-3 languages like Ladder Diagram (LD) and Structured Text (ST).

Q6: What are the key industrial applications for the AS228P-A?

It's widely used in electronics manufacturing, labeling, food packaging, and textile machinery. These applications often require high-speed processing and precise motion control.

Q7: How does the AS228P-A contribute to system scalability?

The AS228P-A supports up to 32 extension modules, allowing the total I/O count to reach 1,024 points. This enables systems to grow with production needs.

Q8: What are the typical power requirements for the AS228P-A?

The module typically operates on a 24 VDC power supply. Detailed electrical specifications can be found in the product's official datasheets and manuals.

Q9: What are some common troubleshooting steps for the AS228P-A?

Check LED indicators on the CPU for error codes. Ensure firmware and software are up-to-date. Verify program downloads and communication settings.

Q10: How does the AS228P-A support IIoT integration?

With optional communication cards like the AS-FFTP01, it enables IIoT functions. This includes remote data access, SCADA connectivity via OPC-UA, and cloud communication via MQTT.