Synchronized Action Parameters ($Ac_Param[N]); Arithmetic Parameter ($R[N]) - Siemens SINUMERIK 828D Programming Manual

10.3.6

Synchronized action parameters ($AC_PARAM[n])

Function
The synchronized action parameter $AC_PARAM[n] is used for calculations and as
intermediate memory in synchronized actions. These variables can either be saved in the
memory of the active or passive file system.
Synchronized action variable: Data type:REAL
These parameters exist once in each channel under the same name.
$AC_PARAM[n]
$MC_MM_NUM_AC_PARAM
n
Example of synchronized action parameter $AC_PARAM[n]
Program code
$AC_PARAM[0]=1.5
$AC_MARKER[0]=1
ID=1 WHEN $AA_IW[X]>100 DO $AC_PARAM[1]=$AA_IW[X]
ID=2 WHEN $AA_IW[X]>100 DO $AC_MARKER[1]=$AC_MARKER[2]
10.3.7

Arithmetic parameter ($R[n])

Function
This static array variable is used for calculations in the part program and synchronized
actions.
Syntax
Programming in part program:
REAL R[n]
REAL Rn
Programming in synchronized actions:
REAL $R[n]
REAL $Rn
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
10.3 Main run variables for synchronized actions
Arithmetic variable for motion synchronized actions (REAL)
Machine data for setting the number of parameters for
movement synchronized actions up to a maximum of 20000.
Array index of parameter 0n
Motion synchronous actions
565