Siemens SINUMERIK 840D sl Programming Manual page 43

Setting access rights using ACCESS files
When using ACCESS files to assign access rights, redefinitions of access rights for system
data, user data, and NC language commands may only continue to be programmed in these
ACCESS files. Global user data (GUD) is an exception. For this data, access rights have to
continue to be redefined (if this appears necessary) in the corresponding definition files.
For continuous access protection, the machine data for the execution rights and the access
protection for the corresponding directories have to be modified consistently.
In principle, the procedure is as follows:
● Creation of the necessary definition files:
● Setting of the write right for the definition files to the value required for redefinition:
● For access to protected elements from cycles, the execution and write rights for cycle
● The write rights of the local HMI cycle directories must be set to the same protection level
Job Planning
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
– _N_DEF_DIR/_N_SACCESS_DEF
– _N_DEF_DIR/_N_MACCESS_DEF
– _N_DEF_DIR/_N_UACCESS_DEF
– MD11170 $MN_ACCESS_WRITE_SACCESS
– MD11171 $MN_ACCESS_WRITE_MACCESS
– MD11172 $MN_ACCESS_WRITE_UACCESS
directories _N_CST_DIR, _N_CMA_DIR, and _N_CST_DIR have to be modified.
Execution rights
– MD11160 $MN_ACCESS_EXEC_CST
– MD11161 $MN_ACCESS_EXEC_CMA
– MD11162 $MN_ACCESS_EXEC_CUS
Write rights
– MD11165 $MN_ACCESS_WRITE_CST
– MD11166 $MN_ACCESS_WRITE_CMA
– MD11167 MN_ACCESS_WRITE_CUS
The execution right has to be set to at least the same protection level as the highest
protection level of the element used.
The write right must be set to at least the same protection level as the execution right.
as the local NC cycle directories.
References:
Operating Manual
Flexible NC programming
1.1 Variables
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