Product Description:

The R-IL ETH BK DI8 DO4 2TX-PAC bus coupler is produced by Bosch Rexroth Indramat for the R-IL PROFIBUS Bus Couplers series. It forms the interface between a 24-volt sensor-actuator level and an Ethernet-based control network, translating wired field signals into data frames that can be processed by PLCs or industrial PCs. By combining power distribution and protocol conversion in one 80-millimeter-wide module, the coupler helps reduce cabinet space requirements in material-handling machines, packaging lines, and assembly stations.

It accepts a control supply of 24 V DC, and each sensor channel has a nominal current draw of 3 mA, minimizing the load on proximity switches. The station provides 8 digital inputs that transfer 24-volt status signals directly to the internal bus logic, while 4 transistor outputs return command states to field devices. Two shielded RJ45 sockets transmit data at 10/100 Mbps, allowing the host to connect additional couplers in a daisy chain without an external switch. Installation depth is limited to 71.5 mm, so the unit fits in shallow control enclosures. The two physical Ethernet ports support line or ring network topologies while maintaining transparent communication between connected devices.

Each output can source up to 500 mA, while the total device current is limited to 2 A, so loads must be distributed appropriately when the unit controls solenoids or indicator lamps. Each channel supports a resistive load of up to 12 W, and the output circuitry operates at the same 24-volt level used by the digital inputs. The IP20 enclosure protects the electronics against accidental finger contact, but the unit must be installed inside a closed control cabinet. Quick spring-cage terminals simplify conductor attachment and provide secure electrical connections without conventional screw terminals. The housing measures 80 mm wide by 119.8 mm high, allowing multiple modules to be mounted side by side on a DIN rail without interfering with adjacent devices.