Allen-Bradley 1734-IB4 POINT I/O 24V DC 4-Channel Sink Input Module
Allen-Bradley 1734-IB4 POINT I/O 24V DC 4-Channel Sink Input Module, can be used with DeviceNet and PROFIBUS adapters. It also can be used with ControlNet and Ethernet adapters using RSLogix 5000, version 11 (or higher) software