Allen-Bradley 1794-ASB

The Allen-Bradley 1794-ASB Remote I/O Communication Adapter is an essential element within the Flex I/O product family, engineered for seamless distributed I/O networking. This versatile module supports legacy RIO protocols, ensuring compatibility with older Allen-Bradley controllers such as PLC2, PLC3, and PLC5, alongside contemporary Logix platforms and various third-party devices. It features efficient data transfer capabilities through Block Transfer Read and Write instructions at communication rates of 57.6Kbps, 115.2Kbps, and 230.4Kbps. With its integrated power supply, the 1794-ASB can power up to eight Flex I/O modules, converting 24VDC to 5VDC, and includes built-in status indicators for straightforward monitoring. Designed for easy installation on standard DIN rails, its compact size—approximately 4x2x4 inches—allows for versatility in various setups while requiring proper installation within a protective enclosure due to its open type design.