Product Description

The B&R 2DI426.6 Digital Input Module is a reliable and fast digital input module which was built in 2010 as part of the B&R System 2010 to address wide range industrial automation tasks. It includes 32 digital inputs laid out in eight groups of four inputs with electrical isolation between them, thereby heightening safety and minimizing interference that may occur during signal processing. Sink and source wiring configurations are supported by this module so that it can be used in many different applications. Each input operates on a nominal voltage of 24 VDC with a maximum allowable voltage of 30 Volts of DC. The inputs have a resistance of 4 k1/2 for steady performance. There are three well-defined switching thresholds: low (less than 5 V), mid-range (between 5 to 15 V), and high (over 15 V) levels which allow accurate control and detection of signals. At nominal voltage, input current is about 6 mA.

This particular module 2DI426.6 provides electrical isolation between inputs and PCC using optocouplers, also between different groups but not within one group itself thus ensuring reliability while operating in industrial setup where safety is a key concern. Response time could be as fast as one millisecond making it suitable for applications where quickness counts most, like those involving rapid signaling processing; besides, this unit can withstand maximum peak voltage up to five hundred volts during fifty microseconds spaced apart by intervals not exceeding one hundred milliseconds.

Power consumption may go up to four watts hence energy saving should always be borne in mind when selecting power supplies for automation devices such as the mentioned here product from B&R Industrial Automation GmbH.