WAGO-I/O-SYSTEM 750 Device Description 49750-843 ETHERNET Controller 10 MBitManualVersion 1.2.0Table 18: Legend for Figure „Mode Selector Switch“Number Description1 Open the damper2 Mode selector switchThe mode selector switch determines the loading, starting and stopping of thePLC-application by the fieldbus controller. This multifunction sliding switchfeatures 3 slide lock positions and a push-button function.The sliding switch is designed for a number of operations in compliance withEN61131T2.Property damages due to set outputs!Please note that set outputs remain set, when you switch the operating switchfrom “RUN” to “STOP” during the current operation. Since the program is nolonger processed, software-related switch offs, i.e. by initiators, are ineffective.Therefore, program or define all outputs, so that these switch to a safe mode at aprogram stop.Pos : 38.2 /Serie 750 (WAGO-I/O-SYST EM)/Ger ätebesc hrei bung/Bedienel emente/F el dbus koppl er/-contr oller/Hi nweis : Vorpr ogrammier en der Ausg äng e für Pr ogrammstopp! (Betriebs artens chalter ohne WBM) @ 4\mod_1240571705443_21.doc x @ 31294 @ @ 1Pre-programming the outputs for program stop!You have the ability to program the behavior of the fieldbus controller so that theoutputs switch in a safe condition in the case of program stop.For this WAGO-I/O-PRO allocates a function with GET_STOP_VALUE (library“System.lib”), which serves to recognize the last cycle before “STOP”.Pos : 38.3 /Serie 750 (WAGO-I/O-SYST EM)/Ger ätebesc hrei bung/Bedienel emente/F el dbus koppl er/-contr oller/Betriebsartensc halter - T abell en @ 4\mod_1240571618379_21.doc x @ 31290 @ @ 1The mode selector switch position does not affect software start/stop!The position of the operating mode switch does not prevent the starting andstopping of the PFC application from WAGO-I/O-PRO.One of the following functions is active, depending on which of the three staticpositions — “top”, “center” or “bottom” — the switch is located at whenenergized or during a hardware or software reset:Table 1: Mode Selector Switch Positions, Static Positions on PowerOn/ResetPositions for the modeselector switchFunction“Top” position “RUN” – activate program processing,Boot project (if available) is started“Center” position “STOP” – stop program processing,PFC application is stopped“Bottom” position Do not use. This position is not relevant for the user.The fieldbus controller performs the following functions if the switch’s position ischanged during operation: