Mitsubishi Electric Q80BD-J61BT11N, User Manual

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App - 42 App - 42
MELSEC
APPENDIX
(3) Master station (CC-Link Ver.2 board) local station
(programmable controller) (Ver.2 compatible slave station)
(a) Master station (CC-Link Ver.2 board) (RX) Local station
(programmable controller) (RY)
The following formula indicates the time taken from the moment a local
station's CPU device turns on (off) until RX of the master station (CC-Link
Ver.2 board) turns on (off). ( 1)
[Formula]
[Normal value]
Iu + α 1 + (LR m) + LS (1 (2 n-1)+1) +{SL × (k ＋ 1)} [ms] ( 2)
[Maximum value]
Iu + α 1 + (LR m) + LS (2 (2 n-1)+1) +{SL × (k ＋ 1)} [ms] ( 2)
Iu : Reading execution interval of the user program
α 1: Request processing time of the personal computer
LR: Link refresh time
LS: Link scan time (refer to Appendix 3.1)
SL: Local station sequence program scan time
k: LS/SL (However, the decimal point is rounded up)
m: LS/LR (However, the decimal point is rounded up)
n: Expanded cyclic setting (n time setup)
Note that n=1 is used for a Ver.1 compatible slave station.
1: The above one is shown by the example of the remote device station (RX ，
RY), but it is also applicable for the remote device station (RWr ， RWw).
2: When reading RX from the CC-Link Ver.2 board with the md function, it is
necessary to add the own station access processing time of the md function.