Siemens SINUMERIK 840D Operator's Manual page 86

2
Operator Components/Sequence of Operations
2.8 Job list
Selection
Unload
2-86
"Selection" job list
If you select a job list or workpiece with job list, all instructions of the
job list are executed.
LOAD instructions are executed if the files are still stored on the HMI.
COPY instructions are executed only if the files are not stored on the
NC or if the file copy on the NC has a different time stamp to the HMI
copy. If the time stamps are different, the system inquires whether the
file must be overwritten.
SELECT instructions are executed.
"Unload" job list
"Unload" means that the instructions of the job list are "undone", the
instructions in the job list are executed in reverse order, e.g.:
Data which have been loaded to a destination NC with a LOAD
instruction are unloaded from [destination] to [source] into the source
directory on the HMI.
Data which has been loaded to a destination NC with a COPY
instruction is deleted in the [destination] if the time stamps are
identical. If the file on the NC was changed, the user is prompted
whether the version from the NC is to be saved to the HMI.
With "Unload" only files are transferred from the passive file system of
the NC. If, for example, modifications have been made to the active
data in parameters, these must be saved beforehand.
SINUMERIK 840D/840Di/810D Operator's Guide HMI Advanced (BAD) – 03.04 Edition
2
03.04
Ó Siemens AG, 2004. All rights reserved