Product Description:

The RZP01.1-L2 is an expansion card produced by Bosch Rexroth Indramat for the RZP Option Modules series. Installed in a host controller, it branches the internal fiber-optic communication ring so additional drive axes or I/O stations can share the same synchronized network. By splitting one incoming optical channel into two outgoing paths, the board increases network flexibility in industrial automation systems that need deterministic data exchange among multiple motion or process nodes. This arrangement helps distribute communication to separate branches without adding a standalone external repeater.

The board uses a branch count of 2, allowing the incoming optical ring to split into independent downstream paths. Mechanical integration is simplified by the compact footprint of 100 x 87 mm, so the card fits standard Euro-card carriers without obstructing adjacent slots. Process data is transmitted over a fiber-optic cable, which helps avoid ground-loop issues and supports longer cable runs inside machine enclosures. The module can exchange up to 5 process data words per cycle, which suits the update needs of typical axis controllers and distributed I/O points. Power is supplied through the backplane at +5 V and +15 V internal, so separate external supply wiring is not required.

For timing-critical loops, the module supports a recommended synchronous baud rate of 230400 baud, while lower selectable rates remain available for legacy devices that operate more slowly. The cascade capacity is Unlimited, so additional cards can be daisy-chained without a fixed module count imposed by the card itself. Execution jitter is controlled by a one-word run time of 0.25 ms and a network clock period of 1 ms. These timing values help keep total propagation delay below the stated limit of 0.7 ms. Bidirectional signaling supports stable communication in control cabinets exposed to moderate industrial conditions.