Omron CP1E - INTRODUCTION Introduction Manual page 122

A-3 Inner Workings of CP1L/CP1E
Example Calculation of Cycle Time
A
120
SYSMAC CP1L/CP1E Introduction Manual
An example for 4-2-2 Ladder Programs is shown.
Process Name
Overseeing processes -
Program execution Sequential input 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
Cycle time calculation N/A
I/O refreshing N/A (no expansion unit)
Peripheral services N/A (no connection)
Cycle time
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.
Formula
LD 0.55µs x 6 instructions
OR 0.68µs x 6 instructions
AND NOT 0.65µs x 7 instructions
Processing
Time
0.4ms
0.04ms
0ms
0ms
0ms
0.44ms