Mitsubishi Electric MELSEC iQ-R Series User Manual page 312

(0) Set the acquisition processing for input data from connection No.1 and connection No.2, and start EtherNet/IP communication.
(16) When M0 is on, "M+RJ71GN11_SE_EIP_Class1GetInputData" is executed to acquire the connection No.1 input data.
When M20 is on, the input data received from target 1 continues to be stored from D0 for the data size set in connection No.1.
(364) When M1 is on, while the 'Class1 data link status' (U0\G7734272.1) of connection No.2 is normal, the input data received from target 2 is refreshed from
D200 by the data size set in connection No.2 and then copied to W100 or later.
(402) By turning on M200, input data acquisition and EtherNet/IP communication are stopped.
13 PROGRAMMING
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13.2 Class1 Communications Communication Example