1756-DNB

The Allen Bradley 1756-DNB is a dedicated communication module designed for effective use within the ControlLogix series, specifically integrating with DeviceNet networks. This product allows for efficient communication across various distances, enabling data rates of 125 Kbps for spans of 500 meters, increasing to 250 Kbps for 250 meters and reaching up to 500 Kbps over shorter 100-meter distances. Such flexibility in communication rates accommodates different system layouts and application requirements.

With a maximum capacity to connect up to 64 nodes, the 1756-DNB supports the expansion of device networks, making it suitable for extensive systems. The module requires 400 mA of current when powered at 5.1V DC, while at 24V DC, it does not draw any current. Notably, when operating within DeviceNet specifications, the module draws 60 mA at 24V DC to maintain functionality.

The 1756-DNB has a power dissipation rating of 3.5 Watts, along with a thermal dissipation capacity of 11.9 BTU per hour, indicating its efficiency in energy use relative to output. The module fits into a single slot and grants access to one DeviceNet port. Furthermore, it includes a USB port capable of 12 Mbps data transmission speed, facilitating straightforward programming and configuration options. This comprehensive communication module thus enhances the operational capabilities of ControlLogix systems in varied applications.