Delta AS01DNET-A DeviceNet Fieldbus Master Module

Mastering Industrial Automation with the Delta AS01DNET-A DeviceNet Fieldbus Master Module

The Delta AS01DNET-A DeviceNet Fieldbus Master Module stands as a critical component for robust industrial automation systems, offering seamless integration and high-performance communication. This module empowers AS Series PLCs by extending their connectivity to the widely adopted DeviceNet fieldbus. With its ability to function as either a master or a slave, and support for RTU mode, the AS01DNET-A provides exceptional flexibility for diverse automation architectures. Its core advantages lie in its high-speed data exchange capabilities, reliable connectivity, and straightforward integration into existing Delta PLC ecosystems, making it an ideal choice for enhancing control and monitoring in demanding industrial environments.

Product Specifications

| Specification          | Details                                          |

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

| Compatibility          | Delta AS Series PLCs                             |

| Communication Protocol | DeviceNet                                        |

| Module Function        | Master, Slave, RTU mode                          |

| Max. Transmission Speed| 500 kbps                                         |

| Input Voltage          | 24 VDC                                           |

| Max. I/O Slot Supported| Up to 32 extension modules for AS Series PLC     |

| Max. I/O Points        | Up to 1,024 inputs/outputs in AS Series PLC      |

| Data Exchange          | Group 2 server slave, Group 2 only servers       |

| Configuration Software | DeviceNet Builder, ISPSoft                       |

| Dimensions             | Refer to specific module manual for details      |

Core Features & Market Positioning

The Delta AS01DNET-A distinguishes itself in the industrial communication module market through its dual master/slave capability, offering unparalleled versatility. This feature allows it to act as the central controller on a DeviceNet network or function as a remote I/O node, integrating seamlessly with other AS series I/O modules. This adaptability significantly reduces system complexity and cost. Furthermore, its compatibility with Delta's high-performance AS Series PLCs, known for their rapid execution speeds (40k steps/ms) and extensive I/O handling, positions the AS01DNET-A as a premium solution for applications demanding both advanced control and broad network integration. The module's support for RTU function, enabling it to operate independently with external power, further solidifies its position as a flexible and powerful networking component.

Key Application Scenarios

The Delta AS01DNET-A finds extensive application in various industrial sectors where reliable and efficient data acquisition and control are paramount. Its primary use cases include:

  Automated Manufacturing: Facilitating communication between PLCs, sensors, actuators, and other devices on the factory floor for real-time process control in electronics manufacturing, automotive assembly, and packaging lines.  Machine Control: Enabling advanced control of sophisticated machinery by allowing PLCs to communicate with specialized I/O modules and other network devices, crucial for labeling, food processing, and textile machinery.  Distributed I/O Systems: Acting as a flexible remote I/O module, the AS01DNET-A allows for the expansion of AS Series PLC I/O capabilities over the DeviceNet network, ideal for large-scale operations or retrofitting existing systems.  System Integration: Bridging different automation components and subsystems within a larger industrial network, ensuring interoperability and unified data flow.

Practical System Integration Guidance

Integrating the Delta AS01DNET-A into an AS Series PLC system involves careful consideration of network topology, addressing, and configuration. The module connects directly to the AS Series PLC, leveraging its modular design for easy installation. For DeviceNet communication, proper wiring of the DeviceNet connector is essential, ensuring pin colors match connection cables. The module's address switch is used to set its DeviceNet node ID. For master mode operation, the AS01DNET-A works in conjunction with the AS Series PLC, with configuration typically performed using Delta's ISPSoft software and the DeviceNet Builder tool. This software allows for network planning, parameter distribution, and the creation of a standard monitoring structure. When operating in RTU mode, the module requires an external 24VDC power supply. Understanding the data mapping between the AS01DNET-A and the AS PLC's internal memory (input and output tables) is crucial for successful application programming.

Operation and Risk Mitigation

Proper operation of the Delta AS01DNET-A module hinges on adhering to its manual's guidelines and understanding its diagnostic features. Indicator lights on the module provide visual feedback on its operational status and potential faults, such as system fail (SF) or bus fail (BF) indicators. Troubleshooting often involves checking the node ID settings, ensuring correct wiring, and verifying power supply integrity. The module's seven-segment display can also provide error codes for more specific diagnosis. DeviceNet's inherent robustness against interference makes it suitable for harsh manufacturing environments, reducing the risk of communication disruptions. However, incorrect configuration or physical damage can lead to communication errors, emphasizing the importance of careful installation and parameter setup.

Scalability & Long-Term Value

The Delta AS01DNET-A contributes significantly to the scalability and long-term value of industrial automation systems. As part of the Delta AS Series, it benefits from a platform designed for expansion, supporting up to 32 extension modules and 1,024 I/O points. This modularity allows systems to grow and adapt to evolving production needs without requiring a complete overhaul. Its compatibility with a broad range of Delta automation products, including drives and HMIs, fosters a cohesive and integrated automation solution. Furthermore, DeviceNet's established presence in industrial automation ensures continued support and availability of compatible devices, safeguarding investments. The potential for integration with IIoT platforms via gateways or other communication modules offers a pathway to modernize operations and leverage data analytics for enhanced efficiency and predictive maintenance.

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Frequently Asked Questions (FAQs)

1. What is the primary function of the Delta AS01DNET-A module?

The Delta AS01DNET-A is a DeviceNet communication module for the AS Series PLC. It acts as a bridge, enabling AS Series PLCs to connect with devices on a DeviceNet network. This allows for enhanced data exchange and control capabilities within an industrial automation system.

It offers versatile operation modes, functioning as either a DeviceNet master or a DeviceNet slave. This flexibility is key for designing complex network architectures. The module also supports RTU mode, allowing for specific communication configurations.

This module is essential for expanding the connectivity options of Delta's AS Series PLCs, facilitating integration with a wide array of industrial field devices that utilize the DeviceNet protocol.

2. Can the AS01DNET-A module be used as both a master and a slave simultaneously?

No, the AS01DNET-A module cannot operate as both a master and a slave on the same DeviceNet network simultaneously. It is configured to function in one mode or the other at any given time.

Users select the desired mode (master or slave) through a physical switch or configuration setting on the module itself. This selection determines its role in the DeviceNet communication hierarchy.

This design ensures clarity and efficiency in network communication, preventing potential conflicts that could arise from a module attempting to manage and be managed on the network concurrently.

3. What are the key technical specifications of the Delta AS01DNET-A?

The AS01DNET-A supports the DeviceNet protocol at a maximum transmission speed of 500 kbps. It operates on a 24 VDC input voltage. This module is designed for seamless integration with Delta's AS Series PLCs.

It functions as a communication module, allowing for master, slave, or RTU modes of operation. It can also serve as a remote I/O module for connecting AS series DI/DO and AI/AO modules to the DeviceNet network.

The module is engineered for robust industrial applications, offering reliable data exchange and connectivity within demanding automation environments.

4. How do I configure the network address for the AS01DNET-A module?

The network address, or node ID, for the AS01DNET-A module is typically set using an onboard rotary switch. This allows for manual assignment of the device's unique address on the DeviceNet network.

Proper addressing is critical for DeviceNet communication, ensuring that each device on the network is uniquely identified and can communicate effectively with the master. Incorrect addressing is a common cause of communication failures.

Refer to the module's manual for the specific location and operation of the address switch, as well as the valid range of node IDs supported by the module and the DeviceNet network.

5. What software is used to configure the Delta AS01DNET-A module and the DeviceNet network?

Delta's ISPSoft software is used for programming and configuring the AS Series PLC, including its communication modules. For DeviceNet-specific configuration, the DeviceNet Builder software is employed.

DeviceNet Builder allows users to plan the network, distribute parameters to devices, and build a standard monitoring structure. It supports Delta's automation products with built-in EDS files.

These tools facilitate efficient setup, enabling users to define network parameters, I/O mapping, and communication settings for the AS01DNET-A and other connected DeviceNet devices.

6. Can the AS01DNET-A module be used with other PLC brands besides Delta's AS Series?

While the AS01DNET-A is specifically designed as an expansion module for Delta's AS Series PLCs, its DeviceNet master/slave capabilities mean it can participate in a DeviceNet network with devices from other manufacturers. However, it functions as part of the AS Series PLC's system.

The module itself connects directly to the AS Series PLC's backplane or expansion slot. Its primary role is to extend the AS Series PLC's communication interface to the DeviceNet network.

Therefore, while other DeviceNet devices can communicate with the AS01DNET-A on the network, the module's integration into the PLC system is exclusive to Delta's AS Series.

7. What are the typical power requirements for the AS01DNET-A module?

The Delta AS01DNET-A module requires a 24 VDC input voltage for its operation. This is a standard requirement for most industrial automation components.

When operating in RTU mode, an external 24VDC power supply must be connected to the module. This is distinct from the power supplied through the PLC backplane when operating in master/slave mode with the AS Series PLC.

Ensuring a stable and correctly rated 24 VDC power supply is crucial for the reliable operation of the AS01DNET-A module and the DeviceNet network it participates in.

8. How does the AS01DNET-A handle error diagnosis and troubleshooting?

The AS01DNET-A module provides several diagnostic features. It includes indicator LEDs that signal status like "System Fail" (SF) and "Bus Fail" (BF). A seven-segment display on the module can also show specific error codes.

Troubleshooting often involves consulting the module's manual for a detailed explanation of LED indications and error codes. Common issues relate to network wiring, addressing, or configuration errors within the DeviceNet network.

The DeviceNet protocol itself offers features like automatic off-line diagnosis and recovery, which can help mitigate communication disruptions and simplify troubleshooting in harsh environments.

9. What are the advantages of using DeviceNet as a fieldbus protocol with this module?

DeviceNet offers robust interference resistance, making it suitable for noisy industrial environments. It supports a multi-master configuration, enhancing network flexibility.

Its well-defined structure and diagnostic capabilities simplify network management and troubleshooting. DeviceNet also allows for efficient data exchange, supporting both explicit messaging and I/O polling.

DeviceNet's widespread adoption in various industries means a large ecosystem of compatible devices is available, providing users with extensive options for system expansion and integration.

10. Can the AS01DNET-A be used to expand the I/O of an AS Series PLC?

Yes, the AS01DNET-A can function as a remote I/O module. In this configuration, it allows AS Series digital (DI/DO) and analog (AI/AO) modules to be connected to its right side.

These connected I/O modules then communicate over the DeviceNet network. This effectively extends the PLC's I/O capabilities without requiring additional local I/O expansion slots on the PLC itself.

This feature is particularly useful for distributed control applications or when a PLC needs to access I/O points located a considerable distance away from the main PLC rack.