Remote I/O Station - Mitsubishi LJ61BT11 User Manual

Appendix 4.2 Transmission delay time of master station
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 - 44
(1) Master station (RX)
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 :
LS :
n :
Rio :
Synchronous mode
{(SM×n)×1}+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
Synchronous mode
{(20×1)×1}+1.5
= 21.5ms
{(20×1)×2}+1.5
= 41.5ms
Remote I/O station (input)
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

remote I/O station

Synchronous mode
{(SM×n)×1}+Rio
{(SM×n)×2}+Rio
Synchronous mode
{(20×1)×1}+1.5
= 21.5ms
{(20×1)×2}+1.5
= 41.5ms
APPENDIXES
App - 44