Configuration; Configurability - Siemens SINUMERIK 840Di sl Function Manual

Detailed description

2.8 Configuration

2.8 Configuration
2.8.1

Configurability

Number of synchronized action elements
The number of programmable synchronized action blocks depends entirely on the
configurable number of synchronized action elements. The number of storage elements for
motion-synchronous actions (synchronized action elements) is defined via the machine data:
MD28250 $MC_MM_NUM_SYNC_ELEMENTS (Number of elements for expressions in
synchronized actions)
This data can be set irrespective of the number of blocks available in the control system,
thus enabling the complexity of expressions evaluated in real time as well as the number of
actions to be set flexibly.
Use of elements
Each one synchronized action element is needed for:
• A comparison expression in a condition
• An elementary action
• the synchronized action block
Example
A total of four elements is needed for the synchronized action block below.
WHENEVER ($AA_IM[x] > 10.5) OR ($A_IN[1]==1) DO
|________|
Element 1
$AC_PARAM[0]=$AA_im[y]+1
|_________________________|
Element 4
The default value of the following machine data is selected such that it is possible to activate
the maximum presetting of max. 16 synchronized actions for SW 3 and earlier.
MD28250 $MC_MM_NUM_SYNC_ELEMENTS (Number of elements for expressions in
synchronized actions)
116
|_________________|
Element 2
|_______________|
Element 3
Function Manual, 11/2006, 6FC5397-5BP10-2BA0
Synchronized actions