Data Classes In The Nck - Siemens SINUMERIK 828D Commissioning Manual

Introduction and use of data classes

2.1 Data classes in the NCK

2.1 Data classes in the NCK
Classification
All control-relevant data is classified into data classes regarding its later use in
commissioning, software upgrade, software update and component replacement. Data is
classified according to four data classes: M (Manufacturer), I (Individual), U (User) and
S (System)
System (S) data class
This data class covers data in the Siemens and System directories on the CompactFlash
Card. For the rest of this document it will be referred to as "S".
Characteristics / properties of data class S
The data is automatically loaded the first time the system is switched on or during
initialization and activated as far as is necessary.
"S" class data cannot be backed up and are designated as "read only".
Data type
HMI:
NCK:
PLC:
Drives:
Manufacturer (M) data class
This data class covers all data defined by the machine manufacturer (OEM) when a machine
in a model series is commissioned for the first time. For the rest of this document it will be
referred to as "M".
Characteristics / properties of data class M
Class M data is stored in a separate "Manufacturer" archive.
Data type
HMI:
NCK:
PLC:
Drives:
32
Example
Siemens standard user interface and additional languages available
Standard cycles, measurement cycles and JobShop cycles, definitions such as
SGUD and SMAC and all NC active data with data class S
Hardware configurations
Code and data (data descriptions, alarm descriptions, macros)
Example
OEM dialogs (Easy Screen) and cycle support, alarm and message texts.
Manufacturer cycles, MGUD and MMAC definitions and all NC active data with
data class M (no memory normalizing machine data)
PLC program, contents of the data blocks in this data class
all
Commissioning Manual, 02/2012, 6FC5397-3DP40-3BA0
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