Yaskawa MP2300S Basic Module - Manual (Page 216)

6.2 Communication with Other MP Series
6.2.2 When the MP2300S Acts as Slave (ladder program which uses a MSG-RCV function)
6-27
Built-in Ethernet Communications
( 2 ) How to Set up the Remote Device (MP2300) to Be Connected
If the setting of transmission parameters (IP address, subnet mask) is already completed, start from step 3.
1.
Double-click the 218IF Tab in the Module Details of the module configuration definition.