Configuration - Siemens SINUMERIK 840D sl Function Manual

Detailed description

3.12 Configuration

DB21, ... DBX280.1 = 1 (request: Accept synchronized actions to be locked)
The NC then accepts the inhibit signals from the interface in the channel and acknowledges
the acceptance by resetting the request:
DB21, ... DBX280.1 = 0 (acknowledgement: Synchronized actions to be locked accepted)
See also
Protected synchronized actions (Page 121)
3.12 Configuration
Number of synchronized action elements
The number of synchronized action elements that can be provided per channel is set via the
machine data:
MD28250 $MC_MM_NUM_SYNC_ELEMENTS (number of elements for expressions in
synchronized actions)
At least four synchronized action elements are required per synchronized action. Further
synchronized action elements are required for:
Operation
Operator in the condition
Action
Assignment
Further operands in complex expressions
The number of programmable synchronized actions therefore depends on the number of
available synchronized action elements and the complexity of the synchronized actions.
Memory utilization
The status display for synchronized actions can be used to track the memory utilization of the
synchronized action memory (see Section "Diagnostics (HMI Advanced only) (Page 130)").
The number of free synchronized action elements can also be read via the system variable
$AC_SYNA_MEM.
If more synchronized action elements are required during operation than are available, alarm
"14751 Resources for motion synchronous actions not sufficient" is displayed.
Number of FCTDEF elements
The number of FCTDEF elements per channel is set via the machine data:
MD28252 $MC_MM_NUM_FCTDEF_ELEMENTS (number of FCTDEF elements)
124
Number of required elements
1
>= 1
2
1
Function Manual, 08/2018, 6FC5397-5BP40-6BA2
Synchronized actions