Time Use Evaluation Of Synchronized Actions - Siemens SINUMERIK 828D Programming Manual

10.4.30

Time use evaluation of synchronized actions

Function
In a interpolation cycle, synchronized actions have to be both interpreted and motions
calculated by the NC. The system variables presented below provide synchronized actions
with information about the current time shares that synchronized actions have of the
interpolation cycle and about the computation time of the position controllers.
Significance
The variables only have valid values if machine data
Otherwise the variables for both SINUMERIK powerline and solution line systems always
specify the net computing time during which the interrupts caused by HMI are no longer
taken into account. The net computing time results from:
● synchronized action time,
● position control time and
● remaining IPO computing time without interrupts caused by HMI
The system variables always contain the values of the previous IPO cycle.
$AN_IPO_ACT_LOAD
$AN_IPO_MAX_LOAD
$AN_IPO_MIN_LOAD
$AN_IPO_LOAD_PERCENT
$AN_SYNC_ACT_LOAD
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
current IPO computing time (incl. synchronized actions of all
channels)
longest IPO computing time (incl. synchronized actions of all
channels)
shortest IPO computing time (incl. synchronized actions of all
channels)
current IPO computing time as percentage of IPO cycle (%)
current computing time for synchronized actions over all channels
Motion synchronous actions
10.4 Actions in synchronized actions
is greater than 0.
$MN_IPO_MAX_LOAD
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