Siemens SINUMERIK 840D sl Function Manual page 307

05.08
36995
MD number
Default value: 0
Change becomes effective after: POWER ON
Data type: DWORD
Significance:
Special cases, errors,...
36997
MD number
Default value: 0
Change becomes effective after: POWER ON
Data type: DWORD
Significance:
Special cases, errors,...
36998
MD number
Default value: 0, 0, 0
Change becomes effective after: POWER ON
Data type: DWORD
Significance:
© Siemens AG 2008 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
$MA_SAFE_STANDSTILL_POS
Standstill position
Min. input limit: –
Protection level: 0/0
The position at which the axis has currently stopped is displayed in this MD.
To be able to perform a plausibility check on the axis referencing when the control system
is powered–up the next time, the current axis position is permanently saved (in a non–vola-
tile fashion) when the following events take place:
– When safe operating stop (SBH) is selected
– Cyclically when SE/SN is active
Any manual changes to the MD are detected the next time that the control is powered–up
(plausibility check). A new user agreement is required after referencing.
$MA_SAFE_ACKN
User acknowledgement
Min. input limit: –
Protection level: 7/2
The status of the user agreement is displayed in this machine data.
The user can confirm or cancel his "user agreement" using an appropriate screen.
If it is internally detected in the software that the reference to the machine has been lost,
then it is automatically cancelled (e.g. when changing over gear ratios or when referencing,
the plausibility check when comparing with the saved stop position fails).
Any manual changes to the MD are detected the next time that the control is powered–up
(plausibility check). A new user agreement is required after referencing.
$MA_SAFE_ACT_CHECKSUM[0,1,2]
Actual checksum
Min. input limit: –
Protection level: 7/0
The actual checksum – calculated after power on or a reset – over the current values of
safety–related machine data is entered here.
Assigning the indices:
Index 0: Axial monitoring functions and global NC machine data for Safety Integrated
Index 1: HW component IDs
Index 2: PROFIsafe parameters from the S7 configuring
8.1 Machine data for SINUMERIK 840D sl
Max. input limit: –
Max. input limit: –
Max. input limit: –
Data Description
Unit: –
Unit: –
Unit: –
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