Plc And Nc Variables; Displaying And Editing Plc And Nc Variables - Siemens SINUMERIK 828D Operating Manual

14.6

PLC and NC variables

14.6.1

Displaying and editing PLC and NC variables

The "NC/PLC Variables" window allows NC system variables and PLC variables to be
monitored and changed.
You receive the following list in which you can enter the desired NC/PLC variables in order to
display the actual values.
● Variable
Address for NC/PLC variable.
Incorrect variables have a red background and are displayed with a # character in the
value column.
● Comment
Any comment on the variable.
The columns can be displayed and hidden.
● Format
Specify the format in which the variable is to be displayed.
The format can be specified (e.g. floating point).
● Value
Displays the actual value of the NC/PLC variables.
PLC variables
Inputs
Outputs
Bit memory
Times
Counters
Data
Formats
B
H
D
+/-D
F
A
Turning
Operating Manual, 01/2015, 6FC5398-8CP40-5BA2
Input bit (Ex), input byte (EBx), input word (EWx), input double word (EDx)
Output bit (Ax), output byte (ABx), output word (AWx), output double word
(ADx)
Memory bit (Mx), memory byte (MBx), memory word (MWx), memory dou-
ble word (MDx)
Time (Tx)
Counter (Cx)
Data block (DBx): Data bit (DBXx), data byte (DBBx), data word (DBWx),
data double word (DBDx)
Binary
Hexadecimal
Decimal without sign
Decimal with sign
Floating point (for double words)
ASCII character
Alarm, error and system messages
14.6 PLC and NC variables
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