Siemens Sinumerik 840D sl Function Manual page 366

Data Description
8.1 Machine data for SINUMERIK 840D sl
11500
MD number
Default value: 0.0
Change becomes effective after: POWER ON
Data type: DWORD
Meaning:
Special cases, errors,...
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
$MN_PREVENT_SYNACT_LOCK
Protected synchronized actions
Min. input limit: 0
Protection level: 7/2
Fist and last ID of a protected synchronized action area.
Synchronized actions with ID numbers that are located in the protected range, can no
longer be:
- - overwritten
- - deleted (CANCEL)
- - disabled (lock)
once they have been defined. Protected synchronized actions cannot be disabled via the
PLC either. They are indicated to the PLC as non- -lockable in the interface.
Note:
Protection for synchronized actions must be cancelled while generating the synchronized
actions as otherwise, at each change, a POWER ON would be necessary in order to re- -
define the logic. With 0.0, there is no area of protected synchronized actions. The function
is switched- -out. The values are read as absolute values and the upper and lower values
can be specified in any sequence.
Max. input limit: 255
Unit: - -
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