Mitsubishi Electric MELSEC iQ-R Series User Manual page 20

Data flow
This section describes the cyclic transmission data flow of bit device data and the setting for transmission.
• When data is input from an intelligent device station to the master station: The input (X) data from each module connected
to the remote head module is input to the remote input (RX) of the master station.
• When data is output from the master station to the intelligent device station: The remote output (RY) data of the master
station is output to the output (Y) of each module connected to the remote head module.
1 FUNCTIONS
18
1.2 Cyclic Transmission