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Bosch Rexroth AG is unparalleled in its advancement of industrial technology and infrastructure. As the capabilities of industrial automation expand ever more rapidly, so too does the realm of possibilities of everything we can build and create. By integrating the Indramat® Drive and Motor Company into its repertoire of manufacturing technology, Bosch Rexroth's now leads the world in the race to create smarter, safer, more powerful and more affordable industrial automation systems.
The PPC-P11.1N-N-Q1-NN-NN-FW is the configuration of the 1st version of Bosch Rexroth's 11th series of PPC controllers revered for being spatially economic yet powerful and versatile. It owes its processing power to its PowerPC processor, 8 MB of SDRAM, and 256 bytes ser. E²-PROM, and it can readily function as a PLC controller or a CN controller depending on the client's requirements and the loaded software. Most specifically, the PPC-P11.1N-N-Q1-NN-NN-FW is configured with ARCNet Cross Communication. ARCNet is a famously quick fieldbus appreciated for its rapid responsiveness to short messages – made possible by its high data rate (normally 2.5 Mb/s), short packet lengths (0-507 bytes), and its token-passing protocol. In a token-passing protocol, a node only sends a data packet message when it receives an Invitation To Transmit (ITT), AKA a "token," which is a unique signaling sequence passed sequentially along all of the active nodes in the network. When a node receives a token, it must initiate a transmission sequence by catching the token, attaching the transmission data to the token, and passing the [token + transmission data] package along to its logical neighbor (the node with the next highest address) within the network.
Each node within the network relays the [token + message data] package to its sequential neighbor until the package reaches the node with the destination address indicated in the transmitted message data. The recipient then copies the message's data frame for itself, modifies the frame status within the [token + message data] package so that it communicates confirmation of the successful delivery and reception, and releases the [token + modified message data] package back into the network. Finally, the original sender receives the [token + modified message data] package, removes the modified message data from the token sequence, and releases the token back into the network. Token passing permits the accurate calculation and predictability of the network's time performance – an essential feature in an industrial network.
Furthermore, tokens are passed along to the next highest network address regardless of the nodes' physical locations. Therefore, a token-passing protocol allows for rapid communication completely independent of the nodes' physical distance from each other – yet another major advantage for functioning in an industrial network. ARCNet also features integral cyclic redundancy check (CRC)-16 error checking and supports many different cable systems, including fiber optics. Altogether, these features constitute a fieldbus that is tailored perfectly for the industrial automation industry.
|Housing Version:||for Industrial PC|
|Memory Expansion Module:||None|
|Configuration:||Cross Communication, ARCNet / Not Equipped / Not Equipped|
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