Appendix 1 Operation Processing Timea Appendix 1.1Definition - Mitsubishi MELSEC QS Series Programming Manual

Appendix 1 OPERATION PROCESSING TIME
Appendix 1.1
(1) Processing time taken by the QSCPU is the total of the following processing times.
• Total of each instruction processing time
• END processing time
• I/O refresh time
• Service processing time
(2) Instruction processing time
This is the total of processing time of each instruction shown in Appendix 1.2.
(3) END processing time
END instruction processing time is the total of the following processing times.
• END instruction processing time shown in Appendix 1.2
• CC-Link IE controller network and MELSECNET/H refresh time
• Auto refresh time of CC-Link Safety
• MELSECNET/H refresh time
• Communication processing time with GX Developer
*1: For details CC-Link IE controller network and MELSECNET/H refresh time, refer to the following manual.
*2: For details the auto refresh time of CC-Link Safety., refer to the following manual.
*3: Also refer to the following manual for the communication processing time with the GX Developer.
(4) I/O refresh time can be calculated using the equation below.
I/O refresh time (µs)
(5) For details of service processing time, refer to the following manual.
• QSCPU User's Manual (Function Explanation, Program Fundamentals)
(6) Calculation of processing time
The total of the processing time when executed by the QSCPU is calculated as follows:
X0
App-2
Appendix 1 OPERATION PROCESSING TIME
Appendix 1.1 Definition
Definition
*2
• QSCPU User's Manual (Function Explanation, Program Fundamentals)
• CC-Link Safety System Master Module User's Manual
• QSCPU User's Manual (Function Explanation, Program Fundamentals)
Number of I/O points
Ladder Example
MOV D0 D1
END
*1
*3
0.224 + 310 (µs)
Processing Time
[Instruction processing time]
LD X0 . . . . . . . . . . . . . . . . . . . 0.10µs
MOV D0 D1 . . . . . . . . . . . . . . 0.35µs
0.10(µs) + 0.35(µs) = 0.45(µs)
[END processing time]
END instruction . . . . . . . . . . . 8200µs
[I/O refresh time]
I/O refresh time . . . . . . . . . . . 310µs
TOTAL
0.45(µs) + 8200(µs) + 310(µs) = 8510.45(µs)