Siemens sinumerik 840d Programming Manual page 389

08.97
10
840D 840D
NCU 571 NCU 572
NCU 573
Unlock technology cycle, UNLOCK
Locked technology cycles can be unlocked again from
another synchronized action/technology cycle with UNLOCK.
With UNLOCK, this is continued at the current position, this
also applies to an interrupted positioning procedure.
Example:
N100 ID=1 WHENEVER $A_IN[1]==1 DO M130
...
N200 ID=2 WHENEVER $A_IN[2]==1 DO LOCK(1)
...
N250 ID=3 WHENEVER $A_IN[3]==1 DO UNLOCK(1)
Reset technology cycle, RESET
Technology cycles can be reset using RESET from
another synchronized action or from a technology cycle.
Example:
N100 ID=1 WHENEVER $A_IN[1]==1 DO M130
...
N200 ID=2 WHENEVER $A_IN[2]==1 DO RESET(1)
Locking on the PLC side
Modal synchronized actions can be interlocked from
the PLC with the ID numbers n=1 ... 64. The
associated condition is no longer evaluated and
execution of the associated function is locked in the
NCK.
All synchronized actions can be locked
indiscriminately with one signal in the PLC interface.
Notes
A programmed synchronized action is active as
standard and can be protected against
overwriting/locking by a machine data setting.
 Siemens AG 2000. All rights reserved
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
FM-NC 810D 840Di
Motion-Synchronous Action
10.5 Technology cycles
Application:
It should not be possible for end
customers to modify synchronized
actions defined by the machine
manufacturer.
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