Mitsubishi LJ61BT11 User Manual page 415

Calculation With block guarantee of cyclic data per station
value
Asynchronous mode
Normal
(SM×n)+(LS×2)+{SL×(k+1)}
value
Max. value (SM×n)+(LS×3)+{SL×(k+1)}
Calculation With block guarantee of cyclic data per station
value
Asynchronous mode
Normal (20×1) + (3×2) +{10×(1+1)}
value =46ms
(20×1) + (3×3) +{10×(1+1)}
Max. value
=49ms
App - 51
(2) Master station (RY)
Local station (RWr)
This indicates the time from the moment a master station CPU device turns ON
(OFF) until the corresponding local station CPU device turns ON (OFF).
Or, it indicates the time from when data is set to a master station CPU device
until data is stored in the corresponding local station CPU device.
[Expression]
The meanings of symbols in the table are as follows:
SM :
LS :
SL :
n :
k :
Synchronous mode
(SM×n)+ (LS×2)+{SL×(k+1)}
(SM×n)+(LS×2)+{SL×(k+1)}
Calculation example:
Master station sequence scan time of 20ms, link scan time of 3ms, and
local station sequence scan time of 10ms
Synchronous mode
(20×1) + (3×2) +{10×(1+1)}
=46ms
(20×1) + (3×2) +{10×(1+1)}
=46ms
Local station (RX), Master station (RWw)
Master station sequence scan time
Link scan time
Local station sequence scan time
LS÷SM (Digits past the decimal point are rounded up to the
nearest integer.)
LS÷SL (Digits past the decimal point are rounded up to the
nearest integer.)
Without block guarantee of cyclic data per station
Asynchronous mode
SM+(LS×2)+SL
SM+(LS×3)+SL
Without block guarantee of cyclic data per station
Asynchronous mode
20+ (3×2) +10
=36ms
20+ (3×3) +10
=39ms
APPENDIXES
Synchronous mode
(SM×n)+(LS×2)+SL
(SM×n)+(LS×2)+SL
Synchronous mode
(20×1) + (3×2) +10
=36ms
(20×1) + (3×2) +10
=36ms
App - 51