Mitsubishi LJ61BT11 User Manual page 409

Calculation With block guarantee of cyclic data per station
value
Asynchronous mode
Normal
(SM×n)+(LS×1)+Rio
value
Max. value (SM×n)+(LS×2)+Rio
Calculation With block guarantee of cyclic data per station
value
Asynchronous mode
Normal (20×1)+(3×1)+1.5
value = 24.5ms
(20×1)+(3×2)+1.5
Max. value
= 27.5ms
App - 45
(2) Master station (RY)
This indicates the time from the moment a CPU device turns ON (OFF) until a
remote I/O station output turns ON (OFF).
[Expression]
The meanings of symbols in the table are as follows:
SM :
LS :
n :
Rio :
Synchronous mode
(SM×n)+(LS×1)+Rio
(SM×n)+(LS×2)+Rio
Calculation example:
Master station sequence scan time of 20ms, link scan time of 3ms, and
remote I/O response time of 1.5ms
Synchronous mode
(20×1)+(3×1)+1.5
= 24.5ms
(20×1)+(3×2)+1.5
= 27.5ms
Remote I/O station (output)
Master station sequence scan time
Link scan time
LS÷SM (Digits past the decimal point are rounded up to the
nearest integer.)
Remote I/O response time
Without block guarantee of cyclic data per station
Asynchronous mode
SM+(LS×1)+Rio
SM+(LS×2)+Rio
Without block guarantee of cyclic data per station
Asynchronous mode
20+(3×1)+1.5
= 24.5ms
20+(3×2)+1.5
= 27.5ms
APPENDIXES
Synchronous mode
(SM×n)+(LS×1)+Rio
(SM×n)+(LS×2)+Rio
Synchronous mode
(20×1)+(3×1)+1.5
= 24.5ms
(20×1)+(3×2)+1.5
= 27.5ms
App - 45