Displaying And Editing Plc And Nc Variables - Siemens SINUMERIK Series Operating Manual

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Edit PLC user program (828D only)

23.3 Displaying and editing PLC and NC variables

Displaying and editing PLC and NC variables

Changes can only be made to the NC/PLC variables with the appropriate password.

Incorrect parameterization

Changes 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 you

want to monitor or change in the list:

Address for NC/PLC variable.

Incorrect variables have a red background and are displayed with a # character in the value

Any comment on the variables.

The columns can be displayed and hidden.

Specify the format in which the variable will be displayed.

The format can be specified (e.g. floating point).

Displays the actual value of the NC/PLC variables.

PLC variables

● 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)

● Output bit (Ax), output byte (ABx), output word (AWx), output double word

● Output bit (Qx), output byte (QBx), output word (QWx), output double

Memory bit (Mx), memory byte (MBx), memory word (MWx), memory double

● Counter (Cx)

● Data block (DBx): Data bit (DBXx), data byte (DBBx), data word (DBWx),

data double word (DBDx)

● Data block (VBx): Data bit (VBXx), data byte (VBBx), data word (VBWx),

data double word (VBDx)

Operating Manual, 08/2018, 6FC5398-7CP41-0BA0