10
12.97 Motion-Synchronous Action
10.1 Structure
basic information
10
840 D
NCU 571
840D
NCU 572
NCU 573
FM-NC
810D
CCU2
840Di
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Siemens AG 2000. All rights reserved
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
10-339
10.1 Structure, basic information
Function
Synchronized actions allow you to start different actions
from the current part program and to execute them
synchronously.
The starting point of these actions can be defined
with conditions evaluated in real time (in interpolation
cycles). The actions are therefore responses to real-
time events, execution of them is not limited by block
boundaries.
A synchronized action also contains information
about the effectiveness of the actions and about the
frequency with which the programmed real-time
variables are scanned and therefore about the
frequency with which the actions are started. In this
way, an action can be triggered just once or
cyclically in interpolation cycles.
Part program
Block preparation
Prepared blocks
Realtime processing
Synchronous actions
Logic operations
NCK inputs
Setpoints
Actual values
Polynomial
coefficients
Parameters
Flags
NCK outputs
Positions
Velocities
Conditions Actions
NC functions
Measuring
Switch o n link
M/H function
output
Change polynom.
coefficients
Servo values
Programming
DO Action1 Action2 …
VOCABULARY_WORD condition DO action1 action2 …
ID=n VOCABULARY_WORD condition DO action1 action2 …
IDS=n VOCABULARY_WORD condition DO action1 action2 …
Explanation
Identification number ID/IDS
ID=n
Modal
synchronized actions in automatic mode,
local to program
; n = 1... 255
IDS=n
Modal
synchronized actions in each mode,
static
; n = 1... 255
Without ID/IDS
Non-modal
synchronized actions in automatic mode
Vocabulary word
No vocabulary word
Execution of the action is not subject to any condition. The action is
executed cyclically in any interpolation cycles.
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