Product Description

The 0GH-DI477 is an advanced digital input module from B&R Industrial Automation, introduced in 2005, designed to meet the high demands of modern automation systems. This module supports 32 inputs with a nominal voltage of 24 VDC, and operates with a rapid response time of 1 ms. It offers versatility in wiring configurations, supporting both sink and source options. The module is equipped with 8 electrically isolated input groups, which enhances system reliability by reducing potential signal interference. For accurate and reliable performance, the 0GH-DI477 features electrical isolation between input-to-PLC and group-to-group using optocouplers, though it does not provide isolation between inputs within the same group.

This module is C-UL-US listed, ensuring compliance with rigorous safety standards. It operates with an input current of approximately 5 mA at nominal voltage and can handle a maximum peak voltage of 500 V for 50 us every 100 ms. The input delay is minimal, with a typical value of 1 ms and a maximum of 1.2 ms. To facilitate connection, the 0GH-DI477 includes two 25-pin DSUB sockets, as the module contains 32 digital inputs and B&R 2005 controller terminal blocks are only 20-pin. The connections are made using crimp connectors and rolled ribbon cable due to spatial constraints.

The module features status LEDs that visually indicate the logical status of each input. The LED lights up when an input is logical 1, signifying current flow through the optocoupler, regardless of the connection type. With its comprehensive features and compact design, the 0GH-DI477 is an excellent choice for demanding industrial applications, ensuring efficient and reliable input processing.