NoteIf you wish to view the screenshots, then you can open the files in SINUMERIK Operate. Ona Windows PC, you can open the data using a graphic program, e.g. "Office Picture Manager".(for 840D sl)15.6 PLC and NC variables15.6.1 Displaying and editing PLC and NC variablesChanges can only be made to the NC/PLC variables with the appropriate password.WARNINGIncorrect parameterizationChanges in the states of NC/PLC variables have a considerable influence on the machine.Incorrect configuration of the parameters can endanger life and cause damage to the machine.In the "NC/PLC Variables" window, enter the NC system variables and PLC variables that youwant to monitor or change in the list:● VariableAddress for NC/PLC variable.Incorrect variables have a red background and are displayed with a # character in the valuecolumn.● CommentAny comment on the variable.The columns can be displayed and hidden.● FormatSpecify the format in which the variable is to be displayed.The format can be specified (e.g. floating point).● ValueDisplays the actual value of the NC/PLC variables.PLC variablesInputs ● Input bit (Ex), input byte (EBx), input word (EWx), input double word (EDx)● Input bit (Ix), input byte (IBx), input word (IWx), input double word (IDx)Outputs ● Output bit (Ax), output byte (ABx), output word (AWx), output double word(ADx)● Output bit (Qx), output byte (QBx), output word (QWx), output doubleword (QDx)Bit memory Memory bit (Mx), memory byte (MBx), memory word (MWx), memory doubleword (MDx)Alarm, error, and system messages15.6 PLC and NC variablesMilling740 Operating Manual, 05/2017, A5E40868956