RECO-PC-104 P1 LK KA-PB01

The RECO-PC-104 P1 LK KA-PB01 is a communication daughterboard supplied by Bosch Rexroth Indramat for the RECO Drive Modules series. Installed on a drive controller stack, the board links motion hardware to a higher-level fieldbus so that conveyor, packaging, or material-handling stations can exchange process data with the plant PLC. It occupies a single expansion slot and provides a PROFIBUS node that can be addressed through the controller. This arrangement allows the drive to communicate on the same network as sensors, valves, and other distributed devices. The daughterboard provides a compact communication interface without requiring a separate external gateway or an additional network enclosure.

The board follows the PC/104 bus convention and receives logic power directly from the backplane. Normal operation requires a supply of 5 VDC with a maximum current draw of 650 mA. Communication with the cell network is handled by a channel that meets PROFIBUS DP requirements and the underlying DIN 19245-3 standard. A galvanically isolated transceiver protects the local circuitry from ground loops while supporting a maximum transmission rate of 12 Mbaud. The segment connects through a 9-pin D-sub connector, which permits straightforward disconnection during cabinet service. For cyclic process data, the interface provides a 32-word data width so that diagnostic flags and setpoints can be transferred during a bus update. An RS-232C serial service port accepts terminal commands without interrupting the active fieldbus channel.

A dual-port RAM capacity of 8 KB buffers telegrams between the local processor and the PROFIBUS application-specific integrated circuit. The module supports up to 244 bytes of input data and a combined transfer ceiling of 368 bytes across both communication directions. Configuration software must allocate parameters and process data within these limits. The serial service port transmits maintenance reports at 9600 baud, allowing node status to be checked while the primary network remains active. Galvanic isolation also separates fieldbus signals from the board’s internal logic, reducing the effect of electrical potential differences between connected equipment. The backplane-powered design keeps power and communication routing within the controller stack while leaving the external connector available for the PROFIBUS segment.