Mitsubishi Electric L26CPU-BT User Manual page 186

(b) Data flow in the synchronous mode
• Sequence scan  Link scan
Programmable controller CPU
(Sequence scan)
Master station buffer memory
(Remote input RX)
Link scan
Response time of the corresponding station
Responses from remote
I/O stations
I: Delay time due to response delay of remote I/O station
II: Delay time of transmission from the remote I/O station to the master station
III: Delay time from reception by the master station to storage in the buffer memory
IV: Delay time until the master station's information is refreshed in the programmable controller CPU
184
Response time of the first station
Response time of the final station
Input 1) Input 2)
I II
Transmission
delay time
III
IV