Mitsubishi L26CPU-BT, User Manual

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App - 44 App - 44
APPENDIXES
Appendix 4.2 Transmission delay time of master station remote I/O station
(1) Master station (RX) Remote I/O station (input)
This indicates the time from the moment a signal is input to a remote I/O station
until the corresponding CPU device turns ON (OFF).
[Expression]
The meanings of symbols in the table are as follows:
SM : Master station sequence scan time
LS : Link scan time
n : LS÷SM (Digits past the decimal point are rounded up to the
nearest integer.)
Rio : Remote I/O response time
With block guarantee of cyclic data per station Without block guarantee of cyclic data per station Calculation
value
Asynchronous mode Synchronous mode Asynchronous mode Synchronous mode
Normal
value
(SM×n)+(LS×1)+Rio {(SM×n)×1}+Rio SM+(LS×1)+Rio {(SM×n)×1}+Rio
Max. value (SM×n)+(LS×2)+Rio {(SM×n)×2}+Rio SM+(LS×2)+Rio {(SM×n)×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
With block guarantee of cyclic data per station Without block guarantee of cyclic data per station Calculation
value
Asynchronous mode Synchronous mode Asynchronous mode Synchronous mode
Normal
value
(20×1)+(3×1)+1.5
= 24.5ms {(20×1)×1}+1.5
= 21.5ms 20+(3×1)+1.5
= 24.5ms {(20×1)×1}+1.5
= 21.5ms
Max. value
(20×1)+(3×2)+1.5
= 27.5ms {(20×1)×2}+1.5
= 41.5ms 20+(3×2)+1.5
= 27.5ms {(20×1)×2}+1.5
= 41.5ms