| Attribute | Value |
|---|---|
| Manufacturer | Mitsubishi Electric Corporation |
| Series | MELSEC-Q |
| Type | DeviceNet Master-Slave Unit |
| Model | QJ71DN91 |
| Voltage | 24VDC 30mA |
| Power | 5VDC 0.17A |
| Class | Class 2 Only |
| Origin | Made in Japan |
| Weight | 120 gm |
What is the Mitsubishi QJ71DN91 DeviceNet Master-Slave Unit?
The QJ71DN91 is a communication module that supports the DeviceNet protocol, enabling Mitsubishi’s MELSEC-Q series PLCs to connect seamlessly with a variety of industrial devices. Acting as both a master and a slave, this module allows for effective data exchange in factory automation systems.
DeviceNet is an open network standard based on the Controller Area Network (CAN) widely used for communication between industrial controllers, sensors, actuators, and other field devices.
Main Features of the QJ71DN91
1. Master-Slave Mode
- Can perform both DeviceNet master and slave functions in a network
- Provides flexible control across different industrial environments
- Supports communication with a number of slave devices at one time
2. High-Speed Communication
- Compatible with baud rates of 125 kbps, 250 kbps, and 500 kbps
- Ensures real-time data exchange with low latency
- Aids in enhancing system efficiency and response time
3. Smooth Integration with MELSEC-Q PLCs
- Optimized for Mitsubishi Electric’s MELSEC-Q series
- Supports easy integration without the need for complicated programming
- Supports GX Developer and GX Works2 software
4. Strong and Stable Performance
- Guarantees stable communication with industrial devices
- Supports up to 64 slave nodes in a DeviceNet network
- Integrated diagnostic functions for monitoring and troubleshooting
5. Flexible I/O Data Mapping
- Enables flexible handling and mapping of data
- Facilitates effective communication with sensors, actuators, and remote I/O modules
Advantages of Utilizing the QJ71DN91 Module
1. Improved Efficiency
QJ71DN91 enables faster and more efficient data transfer among devices. This means less downtime and greater productivity.
2. Cost-Saving Networking
DeviceNet is a multi-drop network, which means several devices can be connected via one cable, thus saving the cost of wiring and installation.
3. Enhanced System Flexibility
Due to both master and slave capabilities, the QJ71DN91 is more flexible in system design for automation systems and is suitable for any type of application.
4. Expanded Diagnostic Capabilities
Internal monitoring and diagnostic functions assist in detecting and correcting communication problems promptly, reducing production process interruptions.
Applications of the QJ71DN91 in Industrial Automation
The QJ71DN91 DeviceNet Master-Slave Unit is extensively applied in numerous industrial applications such as:
Factory Automation: Links PLCs to robots, conveyor belts, and automated equipment.
Material Handling Systems: Talks to sensors, actuators, and motor controllers in production lines and warehouses.
Process Control: Interfaces with distributed control systems (DCS) for the control of complicated processes.
Automated Assembly Lines: Allows easy communication between various parts in an assembly system.
Packaging Machines: Allows smooth coordination between packaging elements, e.g., labeling machines and conveyors.
