Siemens SINUMERIK 828D Function Manual page 105

Data backup
The values of the system variables can be saved in specific backup files:
Backup file
_N_CHx_WAL
_N_COMPLETE_WAL
Note
The values of the system variables for the definition of the "working area limitations in WKS/
ENS" are also component of the file "_N_INITIAL_INI".
Effects
JOG mode
If in the JOG-mode several geometry axes are traversed simultaneously (e.g., using several handwheels) and a
rotating frame is active between the base coordinate system and the reference coordinate system of the working
area limitation (WCS or AZS), then a response of the monitoring leads to the fact that the movements of the
involved geometry axes are continued in a straight line and stopped at the working area limits.
Reset response
The reset behavior or reset position of the working area limitation in the WCS/AZS can be set via the following
machine data:
MD20150 $MC_GCODE_RESET_VALUE[59] (reset position of G groups)
MD20152 $MC_GCODE_RESET_MODE[59] (reset behavior of G groups)
• Certain working area limitation group as a reset position:
MD20152 $MC_GCODE_RESET_MODE[59] = 0
MD20150 $MC_GCODE_RESET_VALUE[59] = <n>
A reset causes the activation of working area limitation group <n> in accordance with WALCS<n>.
• Last working area limitation group active in the part program as a reset position:
MD20152 $MC_GCODE_RESET_MODE[59] = 1
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
For the backup of:
Values of the system variables for the channel x.
Values of the system variables for all channels.
A3: Axis Monitoring, Protection Zones
2.2 Axis monitoring
105