Mitsubishi Electric MELSEC iQ-R Series User Manual page 328

(0) Set the request number and destination IP address for UCMM tag communications, and start EtherNet/IP communications.
(15) Specify "0" (Disabled) for the Path Segment data used in the module function block.
(20) By turning on M100, "M+RJ71GN11_SE_EIP_UCMMOriginator_WriteTagData" is executed and a write request is sent to the server side.
When M120 is on, 10 worlds of data stored in D1000 or later is written to Tag001 on the server side.
(754) Specify "0" (Disabled) for the Path Segment data used in the module function block.
(759) By turning on M101, "M+RJ71GN11_SE_EIP_UCMMOriginator_ReadTagData" is executed and a read request is sent to the server side.
When M121 is on, the server-side response result is stored in D2000 or later according to the response data size stored in D3204.
• Ensure that the request number to be set is not the same as the connection number used for Class3
communications or the request number used for other UCMM communications.
• When sending a request to a device that does not require the Path Segment setting, such as a CC-Link IE
TSN Plus module, settings must be made as shown in line 754 of the program example. ( Page 498
Class3/UCMM communication area)
13 PROGRAMMING
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13.4 UCMM Tag Communications Communication Example