Siemens SINUMERIK 804D sl Commissioning Manual page 280

Fundamentals
15.6 Machine and setting data
Activation
Activation when referring to a machine data indicates the NC status in which a change to a
machine data becomes active.
The levels of effectiveness have been listed below in order of priority. Modification of the
machine data takes effect after:
• POWER ON (po) NCK RESET
• NEWCONF (cf)
• RESET (re)
• IMMEDIATE (so)
Note
Unlike machine data, changes to setting data always become effective immediately.
Protection levels
Access level 4 (keyswitch position 3) or more is required to display machine data.
To start up the system the appropriate access level must generally be enabled by entering
the password "EVENING".
Unit
The unit refers to the standard setting of the machine data:
280
where the following applies:
– $System variable
– SSetting data
– kComponent
k identifies the components of the NC parameterizing the appropriate machine data:
– NNC
– CChannel
– AAxis
– Softkey Activate MD at MMC
– RESET key on MCP
– It is possible to modify block limits during program operation
– at end of program M2/M30 or
– RESET key on MCP
– After entry of value
CNC Part 1 (NCK, PLC, drive)
Commissioning Manual, 11/2006, 6FC5397-2AP10-2BA0