Product Description:

The CX1500-B510 communication module is produced by Beckhoff as part of the CX Embedded PC Systems series. It adds a dedicated CANopen fieldbus port to a CX controller so machine programs running on the embedded PC can exchange process data with distributed drives, I/O terminals, and safety devices. By integrating the controller into a deterministic bus, the product supports centralized programming and minimizes wiring inside industrial machinery. That arrangement lets the controller exchange cyclic status and command data without requiring separate point-to-point wiring for each device.

The module exposes a single CANopen interface on a board-mounted 9-pin D-sub connector. This port operates over a bitrate range of 10 kbaud to 1,000 kbaud, so the same hardware supports slow diagnostic loops as well as time-critical motion groups. Wiring begins with the reference conductors: pins 3 and 6 are reserved for CAN_GND, establishing a common return path that helps prevent voltage offsets between nodes. The dominant bus line is present on pin 7 and carries the high-level differential signal on the network. These fixed assignments simplify field wiring because the connector layout is clear and consistent. The electronics occupy only 91 mm of depth, permitting the CX series stack to mount in control panels with limited clearance behind the DIN rail.

The remaining conductors complete the pin map: pin 2 provides the CAN_L line, pin 5 bonds the cable shield to the housing, and contacts 1, 4, 8, 9 are left unused to help preserve stable bus operation. The enclosure width is 38 mm, and the height is 100 mm, allowing several communication modules to sit side by side without exceeding a 19-inch rack pitch. The narrow housing also leaves room for adjacent power supplies and I/O slices in compact control cabinets. Operating as a slave, the CX1500-B510 responds to the master's remote-frame or PDO requests with data relayed from the embedded PC core rather than starting bus arbitration on its own.