Description

Product Description

The 1794-ADN serves as a high-performance communication interface within the Allen-Bradley FLEX I/O platform. This module effectively bridges the gap between a DeviceNet network and various FLEX I/O modules, allowing a programmable controller to manage remote I/O data through a single network drop. Because this adapter facilitates the modular nature of the FLEX I/O system, it significantly reduces wiring costs and simplifies system maintenance in complex industrial environments.

Engineers utilize the 1794-ADN to link up to eight I/O modules, regardless of the specific digital, analog, or specialty module combination. The device operates on a standard 24V DC power source and distributes necessary power to the attached modules via the internal FlexBus. Its compact form factor and support for both DIN rail and panel mounting make it an ideal choice for high-density control cabinets where space is at a premium.

Furthermore, the 1794-ADN enhances network reliability through its intelligent auto-baud rate detection. During the initial power-up sequence, the adapter automatically synchronizes with the network speed, though it also supports manual node addressing via integrated thumbwheel switches. This functionality ensures a straightforward commissioning process and minimizes the risk of configuration errors during installation.

Technical Characteristics

• Network Protocol: DeviceNet
• I/O Module Capacity: Supports a maximum of 8 FLEX I/O modules
• Input Voltage Range: 19.2V DC to 31.2V DC (24V DC Nominal)
• FlexBus Output Current: 640 mA at 5V DC
• Network Communication Rates: 125 Kbps, 250 Kbps, and 500 Kbps
• Node Address Range: 00 to 63 via manual thumbwheel switches
• Environmental Rating: IP20 (Open-type enclosure)
• Operating Temperature: -20°C to 70°C (-4°F to 158°F)
• Physical Connection: 5-pin or 10-pin linear DeviceNet plug