36 Function Description WAGO-I/O-SYSTEM 750750-652 Serial Interface RS-232 / RS-485Manual1.2.05.2 Data Exchange Operating ModePos : 70.4 /Serie 750 (WAGO-I/O-SYST EM)/F unktions beschr eibungFunkti ons besc hreibung 750-0652 - Betriebs art D atenaustaus ch @ 15\mod_1365154044596_21.doc x @ 116646 @ @ 1The Data Exchange operating mode is also available with firmware version 03 orhigher.In this mode, the I/O module allows cyclic data exchange with another 750-652I/O module configured in the same operating mode. Process data betweendifferent fieldbus nodes can also be exchanged when integrated in differentfieldbus systems.Figure 7: Internal structureIf two I/O modules are connected together in this mode, each I/O moduletransmits the data bytes of the process output image cyclically to the I/O moduleon the opposite side. Received data bytes of the process output image on theopposite side are again represented as data bytes in the process image of the localI/O module. The sequence of data bytes remains unchanged during transmission.
