APP - 67
APPENDICES
APPENDIX 3 Processing Times of the Motion CPU
The processing time of each signal and each instruction for positioning control in the
Multiple CPU system is shown below.
(1) CPU processing time [ms]
Q173HCPU
Q172HCPU
Operation
cycle
0.88 1.77 3.55 7.11 0.88 1.77
WAIT ON/OFF
1.9 to 2.6
3.2 to 4.3
4.7 to 6.6 13.3 to 18.6 1.9 to 2.6
3.2 to 4.3
Axis designation program
start processing time
SVST instruction
from PLC CPU
6.7 to 8.4
6.6 to 9.3 7.9 to 12.0 17.9 to 20.1 6.7 to 8.4
6.6 to 9.3
Speed change response
(Note-1)
(CHGV instruction from PLC CPU)
2.2 to 2.8
3.0 to 4.4
5.5 to 8.2 13.0 to 17.7 2.2 to 2.8
3.0 to 4.4
Time from PLC ready flag (M2000) ON to
PCPU ready flag (M9074) ON
39 to 433
(Note-1): This processing time varies depending on the PLC scan time. Use this time merely for reference.