136 Fieldbus Communication WAGO-I/O-SYSTEM 750750-843 ETHERNET Controller 10 MBitManualVersion 1.2.0Errors Occurring when Configuring the Transmission ModeInvalid configurations are listed below:Table 51: Errors Occurring when Configuring the Transmission ModeProblem Cause SymptomsMismatch of the transmissionrateOccurs when configuring onelink partner with 10 Mbit/s andthe other one with 100 Mbit/s.Link failureDuplex mode mismatch Occurs when one link partner isrunning in full-duplex and theother in half-duplex mode.Faulty or discarded data packetsas well as collisions on themedium.Mismatch using autonegotiation Occurs when one link partner isrunning in auto-negotiationmode and the other one is usinga static configuration of thetransmission mode in full-duplex operation.The link partner, which is inautonegotiation mode,determines the network speedvia the parallel detectionprocedure and sets the duplexmode to half-duplex. If thedevice is operating in full-duplex mode with staticconfiguration, a duplex modemismatch will occur (seeabove).
