Siemens SINUMERIK 840D sl Operating Manual page 855

The following machine data is representative for all variable types (INT, BOOL, AXIS, CHAR,
STRING): MD 10000 $MN_AXCONF_MACHAX_NAME_TAB[0]
Note
● System variables can be dependent on the channel. When the channel is switched over,
the values from the selected channel are displayed.
● For user variables (GUD), it is not necessary to make a specification according to global
or channel-specific GUD. The first element of a GUD array starts with index 0 as for NC
variables.
● Using the tooltip, you can display the OPI notation for NC system variables (except for
GUD).
Servo variables
Servo variables can only be selected and displayed at "Diagnostics" → "Trace".
Changing and deleting values
Turning
Operating Manual, 05/2017, A5E40868721
1. Select the "Diagnostics" operating area.
2. Press the "NC/PLC variables" softkey.
- OR -
1. Select the "Startup" operating area.
2. Press the "PLC" and "NC/PLC variab." softkeys.
The "NC/PLC Variables" window opens.
3. Position the cursor in the "Variable" column and enter the required vari‐
able.
4. Press the <INPUT> key.
The operand is displayed with the value.
5. Press the "Details" softkey.
The "NC/PLC Variables: Details" window opens. The information for "Var‐
iable", "Comment" and "Value" is displayed in full length.
6. Position the cursor in the "Format" field and select the required format
with <SELECT>.
Edit PLC user program (828D only)
26.3 Displaying and editing PLC and NC variables
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