Siemens SINUMERIK 840Di sl Function Manual page 109

Notation of the machine data: MD11500 $MN_PREVENT_SYNACT_LOCK
MD11500 $MN_$MN_PREVENT_SYNACT_LOCK[0]=
i
MD11500 $MN_PREVENT_SYNACT_LOCK[1]= j
ID i and j can also be inverted.
If i = 0 and j = 0, no synchronized actions are protected.
Channel-specific protection
An area of write-protected synchronized actions can be defined for the channel via the
channel-specific machine data:
MD21240 $MN_PREVENT_SYNACT_LOCK (protected synchronized action)
Synchronized actions with ID numbers within the protected area, once they are defined, can
no longer be:
• Overwritten
• Deleted (CANCEL) or
• Disabled (LOCK).
Protected synchronized actions cannot be disabled via the PLC either. They are indicated to
the PLC as non-lockable in the interface. See Chapter "Control via PLC".
Application
See above.
Notation of the MD21240 $MC_PREVENT_SYNACT_LOCK_CHAN
CHANDATA(C)
MD21240 $MC_PREVENT_SYNACT_LOCK_CHAN[0]=
k
MD21240 $MC_PREVENT_SYNACT_LOCK_CHAN[1]=
l
k and l can also be inverted.
If k = 0 and l = 0, no synchronized actions are protected.
When k = -1 and l = -1, this specifies that the global range of protected synchronized actions
should be applicable for the channel and should be defined with the following machine data:
MD11500 MN_PREVENT_SYNACT_LOCK (protected synchronized action)
Synchronized actions
Function Manual, 11/2006, 6FC5397-5BP10-2BA0
2.6 Control and protection of synchronized actions
; i number of the 1st ID to be disabled
; i number of the last ID to be disabled
; with C channel number
; k number of the first ID to be disabled for the
channel
; l number of the last ID to be disabled for the
channel ID
Detailed description
109