Siemens SINUMERIK 840D sl Commissioning Manual page 125

Changing the operand address
You can increase or decrease the address by 1 place at a time with the "Operand +" and
"Operand -" softkeys.
...
These operand settings are retained after the control is switched on and off.
HMI sl (IM9)
Commissioning Manual, 07/2007, 6FC5397-1DP10-2BA0
Press the "Delete" softkey if you would like to delete the entries for the
operands.
5. Press the "OK" softkey to confirm the changes or the deletion.
- OR -
Press the "Cancel" softkey to cancel the changes.
You can increase or decrease the address by 1 place at a time with
the "Operand +" and "Operand -" softkeys.
Service and diagnostics
13.1 Displaying PLC and NC variables
119