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QJ71DN91
Mitsubishi's QJ71DN91 module is engineered as a DeviceNet master/slave interface. It supports up to 63 message connections, facilitating communication across networked devices.
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Technical specifications for QJ71DN91
| Manufacturer | Mitsubishi |
|---|---|
| Product Line | Melsec-Q |
| Part Number | QJ71DN91 |
| Weight | 0.06 lbs (0.03 kg) |
| Product | DeviceNet master/slave Module |
| Master Function - Node Type | DeviceNet master (Group 2 only client) |
| Master Function - Number of Message Connections | 63 |
| Master Function - Number of I/O Connections | 63 (polling, bit strobe, change of state, cyclic) |
| Master Function - Communication Data Size for I/O Communication (send and receive) | Max. 4096 points (512 bytes), max. 256 bytes per node |
| Master Function - Communication Data Size for Message Communication (send and receive) | Max. 240 bytes |
| Slave Function - Node Type | DeviceNet slaves (Group 2 server) |
| Slave Function - Node Number | 0 to 63 |
| Slave Function - Communication Data Size for I/O Communication (send and receive) | Max. 1024 points (128 bytes) |
| Slave Function - Number of I/O Connections | 1 (polling) |
| Communication Speed | Selectable from 125 kbps, 250 kbps, and 500 kbps |
| Current Consumption Required on the Network | 0.03A |
| Number of Writes to Flash ROM | Max. 100,000 times |
| Number of Occupied I/O Points | 32 points (I/O allocation: Intelligent 32 points) |
| 5 V DC Internal Current Consumption | 0.17A |
The Mitsubishi QJ71DN91 is a DeviceNet master/slave module designed specifically for communication applications in industrial settings. It functions as a DeviceNet master, compatible with Group 2 clients, managing an impressive 63 message connections. This module allows for 63 I/O connections and supports polling, bit strobe, change of state, and cyclic communications.
For data handling, the QJ71DN91 supports significant communication data sizes, capable of handling a maximum of 4096 points (512 bytes) in I/O communication and 240 bytes for message communication per instance. In slave mode, it connects to DeviceNet slaves, accommodating a node number ranging from 0 to 63.
The communication capabilities extend to the slave function, with a maximum of 1024 points (128 bytes) for I/O communication and one polling connection. Depending on their system requirements, users can select the desired communication speed at 125 kbps, 250 kbps, or 500 kbps. On the network, the module requires a current consumption of 0.03A.
Additionally, the QJ71DN91 enables up to 100,000 writes to its flash ROM, providing durability in data handling. It occupies 32 I/O points (intelligent allocation) while drawing 0.17A from a 5V DC source for internal operations. This module is vital for establishing effective communication in various DeviceNet-enabled device configurations.
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