Siemens SINUMERIK 840D sl Commissioning Manual page 124

Service and diagnostics
13.1 Displaying PLC and NC variables
Changing PLC operands
Changes can only be made to the PLC operands with the appropriate password.
Changes in the states of PLC memory locations have a major impact on the machine.
Incorrect configuration of the parameters can endanger human life and cause damage to
the machine.
Changing and deleting values
118
DANGER
1. Select the "Diagnosis" operating area.
2. Press the "Variab. view" softkey.
The "Variables" window appears.
3. Position the cursor in the "Operand" column and enter the required
variable.
4. Press the "INPUT" key.
The operand is displayed with the value.
5. Place the cursor in the "Format" field and choose the required format
with "SELECT".
4. Press the "Change" softkey if you would like to edit the value.
- OR -
Commissioning Manual, 07/2007, 6FC5397-1DP10-2BA0
HMI sl (IM9)