Mitsubishi Electric MELSEC-Q00U(J)CPU

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APPENDICES
A
Appendix 3 CPU Module Processing Time Appendix 3.3 Factors that increase the scan time
(d) Buffer memory read
The processing time listed in the following table is required.
Processing time = (KM1 × total number of words transferred) + (KM2 × number of setting points) + KM3 [µs]
(e) Buffer memory write
The processing time listed in the following table is required.
Processing time = (KM1 × total number of words transferred) + (KM2 × number of setting points) + KM3 [µs]
(f) Output (Y)
The processing time listed in the following table is required.
Processing time = (KM1 × total number of Y points) + (KM2 × number of setting points) + KM3 [µs]
(g) High-speed interrupt end
For the overhead time at the end of a high-speed interrupt, refer to Page 472, Appendix 3.2 (3) (b).
CPU module
Read data size: 16 words or less Read data size: more than 16 words
Main base unit Extension base unit Main base unit Extension base unit
KM1 KM2 KM3 KM1 KM2 KM3 KM1 KM2 KM3 KM1 KM2 KM3
Q03UDVCPU,
Q04UDVCPU,
Q04UDPVCPU,
Q06UDVCPU,
Q06UDPVCPU,
Q13UDVCPU,
Q13UDPVCPU,
Q26UDVCPU,
Q26UDPVCPU
1.25 0.55 10.00 2.75 0.56 27.00 0.36 0.55 10.00 0.90 0.56 27.00
CPU module
Write data size: 16 words or less Write data size: more than 16 words
Main base unit Extension base unit Main base unit Extension base unit
KM1 KM2 KM3 KM1 KM2 KM3 KM1 KM2 KM3 KM1 KM2 KM3
Q03UDVCPU,
Q04UDVCPU,
Q04UDPVCPU,
Q06UDVCPU,
Q06UDPVCPU,
Q13UDVCPU,
Q13UDPVCPU,
Q26UDVCPU,
Q26UDPVCPU
1.17 1.30 15.00 2.57 0.50 23.00 0.35 1.30 15.00 0.90 0.50 23.00
CPU module
Main base unit Extension base unit
KM1 KM2 KM3 KM1 KM2 KM3
Q03UDVCPU, Q04UDVCPU, Q04UDPVCPU,
Q06UDVCPU, Q06UDPVCPU, Q13UDVCPU,
Q13UDPVCPU, Q26UDVCPU, Q26UDPVCPU
0.06 0.20 2.80 0.11 0.20 2.60