Siemens SINUMERIK 828D Function Manual page 129

Synchronized actions and interpolation cycle
If there are a large number of simultaneously active synchronized actions, the interpolation
cycle may have to be increased:
MD10070 $MN_IPO_SYSCLOCK_TIME_RATIO
Time required by individual operations
Synchronized action commands
Basic load for a synchronized action if condition is not fulfilled:
WHENEVER FALSE DO $AC_MARKER[0]=0
Read variable:
WHENEVER $AA_IM[Y]>10 DO $AC_MARKER[0]=1
Write variable:
DO $R2=1
Read/write setting data:
DO$$SN_SW_CAM_MINUS_POS_TAB_1[0]=20
Basic arithmetic operations, e.g. multiplication:
DO $R2=$R2*2
Trigonometric functions (e.g. cos):
DO $R2=COS($R2)
Start positioning axis:
WHEN TRUE DO POS[z]=10
1) Measured with SINUMERIK 840D with NCU 573.x
Synchronized actions
Function Manual, 07/2012, 6FC5397-5BP40-3BA0
Detailed description
2.12 Configuration
Time required
1)
Total Text in bold print
10 µs 10 µs
11 µs 1 µs
11-12 µs 1-2 µs
24 µs 14 µs
22 µs 12 µs
23 µs 13 µs
83 µs 73 µs
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