A
A-3 Inner Workings of CP1L
SYSMAC CP1L Getting Started Guide 113
Appendix
zExample Calculation of Cycle Time
An example for 4-2-2 Ladder Programs is shown.
The following conditions apply:
• CP1L 14-point I/O unit is used.
• No expansion units are used.
• No connections are made, i.e. with CX-Programmer.
Process Name Formula Processing
Time
Overseeing processes - 0.4ms
Program execution Sequential input instructions
LD 0.55µs x 6 instructions
OR 0.68µs x 6 instructions
AND NOT 0.65µs x 7 instructions
Sequential input instructions (differentiated) 5.5µs x 1
instruction
Sequential output instructions 1.1µs x 3 instructions
Timer instructions 6.4µs x 1 instruction
Counter instructions 6.7µs x 1 instruction
END instruction 6.2µs x 1 instruction
0.04ms
Cycle time calculation N/A 0ms
I/O refreshing N/A (no expansion unit) 0ms
Peripheral services N/A (no connection) 0ms
Cycle time 0.44ms
W07E-EN-02+CP1L+GettingStartedGuide.book Seite 113 Montag, 15. September 2008 11:15 11
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