Siemens SINUMERIK 840D sl Function Manual page 306

Data Description
8.1 Machine data for SINUMERIK 840D sl
36992
MD number
Default value: 0.0
Change becomes effective after: POWER ON
Data type: DOUBLE
Significance:
Special cases, errors,...
36993
MD number
Default value: ""
Change becomes effective after: POWER ON
Data type: STRING
Significance:
Special cases, errors,...
36994
MD number
Default value: 0
Change becomes effective after: POWER ON
Data type: DWORD
Significance:
Special cases, errors,...
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
$MA_SAFE_CROSSCHECK_CYCLE
Displays the axial crosswise comparison clock cycle
Min. input limit: 0
Protection level: 7/0
Safety system, display date: Indicates the effective axial comparison clock cycle in
seconds.
The clock cycle is obtained from INFO_SAFETY_CYCLE_TIME and the number of data to
be compared crosswise.
The axial value displayed depends on the associated drive module, as the length of the
crosswise comparison list differs between performance–1/Standard–2 and Performance–2
modules.
$MA_SAFE_CONFIG_CHANGE_DA TE[n]: n = 0...7
Date/time of the last change SI–NCK–MD
Min. input limit: –
Protection level: 7/0
Safety system, display date: Date and time of the last configuration change of safety–
related NCK machine data. Changes made to the machine data that are calculated into the
axial checksums SAFE_ACT_CHECKSUM are recorded.
$MA_SAFE_PREV_CONFIG[n]: n = 0...8
Data, previous safety configuration
Min. input limit: –
Protection level: 0/0
Buffer memory to save previous safety configuration data
Index[0]: Status flag bit of the change history
Index[1]: Previous value, function enable
Index[2]: Previous value, reference checksum
Index[3]: Last value, function enable before loading standard data
Index[4]: Last value, reference checksum before loading standard data
Index[5]: Previous value, reference checksum[1]
Index[6]: Last value, reference checksum [1] before loading standard data
Index[7]: Previous value, reference checksum[2]
Index[8]: Last value, reference checksum [2] before loading standard data
Max. input limit: –
Unit: s
Max. input limit: –
Unit: –
Max. input limit: FFFFFFFF
Unit: –
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05.08