3EX450.66-2

Product Description:

The 3EX450.66-2 is a classic B&R Automation product that functions as a versatile and efficient bus module for light industrial applications. As part of the 2005 bus controller series, this device is a single-width bus controller with a nominal power consumption of 5.5 W. In a typical automation system, bus controllers such as the 3EX450.66-2 are used to handle other electrical devices or modules based on some control logic or signal. Some bus controllers employ a built-in processing unit, while others typically need an external controller unit such as a PLC device or a computer. At most, this controller module can handle up to 125 slave devices during operation.

Whenever the 3EX450.66-2 draws its nominal power, it can transmit and receive data at a maximum capacity of 512 bytes. Similar to other bus controllers manufactured by B&R Automation, this handy device supports both RS232 and RS485 serial communication protocols. For both its RS232 and RS485 fieldbus interfaces, the connector employed is a 9-pin DSUB port. The difference is that for the RS232 interface, the connection pins are not isolated, whereas for the RS485 interface, the connection pins are electrically separated. For both serial communication interfaces, the 3EX450.66-2 offers robust status indicators.

As a single-width bus controller, the 3EX450.66-2 can route a source signal into a defined output path. In the context of automation systems, the source signal may come from a computer drive module or proportional valves, while the output signal may be another electrical module, commonly a servo drive or a machine. Depending on the utilized interface, this product can transmit data at different baud rates. Generally, RS485 communication offers higher baud rates than the RS232.