Reliance Automax. In stock ships today. 45C201. 45201. Remote I/O Processor. The Remote I/O Processor provides the means for communicating to remotely mounted I/O. When placed in the Automate card rack, the Remote I/O Processor serves as the master in the remote I/O communication scheme. The card receives data from devices on Multibus, transmits it to the proper remote subsystems, receives the response data, and makes that data available to devices on module. All communications protocol and error checking are handled by the card so that the Automate 30/40 processor is no burdened with remote I/O update. The Remote I/O Processor can also serve as a slave, when placed in a rack that does not contain an Automate 30/40 processor. This rack then serves as a remote I/O subsystem. The various numerical I/O cards previously described can be placed in the remote rack to achieve remote numerical I/O. A local I/O processor can be used along with rails and modules for remote digital I/O. In this mode the card receives data from the master, updates the output cards in the rack, and sends the data from the input cards back to the master.