Mitsubishi Electric MELSEC iQ-F FX5 Series User Manual page 216

Master station  local station
When data is transmitted from the master station to a local station as follows:
• Master station (RY)  local station (RX)
• Master station (RWw)  local station (RWr)
Calculation value
Normal value
Maximum value
■Variable
Name of variable
SM
LS
SL
n3
APPX
214
Appendix 6 Processing Time
Station-based block data assurance
If LS < SM: (SM  1) + (LS  (n3 + 1)) + (SL  1)
If LS  SM: (LS  (n3 + 2)) + (SL  1)
(SM  1) + (LS  (n3 + 2)) + (SL  2)
Description
Master station sequence scan time
Communication cycle interval
Local station sequence scan time
Round up the calculated value to the nearest integer of (SL  LS)
No station-based block data assurance
(SM  1) + (LS  2) + (SL  1)
(SM  1) + (LS  3) + (SL  2)
Unit
s
s
s
