Mitsubishi Electric MELSEC iQ-R Series User Manual page 35

■Data flow synchronous with a sequence scan
Sequence scan < Link scan
CPU module
(sequence scan)
Master station buffer memory
(remote input (RX))
Link scan
Response time of the first station
Response time of the corresponding station
Response time of the final station
Responses from remote
I/O stations
 Delay time due to response delay of the remote I/O station
 Delay time of transmission from the remote I/O station to the master station
 Delay time between the master station receiving data and the data being stored into the buffer memory
 Delay time until information of the master station is refreshed in the CPU module
Precautions
■Sequence scan time when the synchronous setting is used
Do not exceed the following time. If the time exceeds the one listed below, a timeout error occurs in each station.
Transmission speed
10Mbps
5Mbps
2.5Mbps
625kbps
156kbps
Input 1
Ò Ó
Transmission delay time
Input 2
Ô
Sequence scan time
50ms
50ms
100ms
400ms
800ms
Õ
1 FUNCTIONS
1.1 Cyclic Transmission
1
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