Structure, Basic Information - Siemens sinumerik 840d Programming Manual

12.97
10
840 D 840D
NCU 571 NCU 572
NCU 573
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.
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
IDS=n
Without ID/IDS
Vocabulary word
No vocabulary word
 Siemens AG 2000. All rights reserved
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
FM-NC 810D 840Di
CCU2
Modal synchronized actions in automatic mode,
local to program; n = 1... 255
Modal synchronized actions in each mode,
static; n = 1... 255
Non-modal synchronized actions in automatic mode
Execution of the action is not subject to any condition. The action is
executed cyclically in any interpolation cycles.
Motion-Synchronous Action
10.1 Structure, basic information
Conditions
NCK inputs
Setpoints
Actual values
Polynomial
coefficients
Parameters
Flags
Servo values
10
Part program
Block preparation
Prepared blocks
Actions
NCK outputs
Positions
Velocities
Realtime processing
NC functions
Synchronous actions
Logic operations
Measuring
Switch on link
M/H function
output
Change polynom.
coefficients
10-339