The software to program the Modicon M258 is EcoStruxure Machine Expert (former SoMachine).
The version required to use the software is the EcoStruxure Machine Expert v1.2.x.
The version of EcoStruxure Machine Expert v2.x does not include the M258 in the hardware list.

In order to install this software you need to download "Schneider Electric Software Installer" from the next link:
https://download.schneider-electric.com/files?p_Archive_Name=ESEMACS10_INSTALLER.zip&p_enDocType=Software - Release&p_Doc_Ref=ESEMACS10_INSTALLER

Then you should be able to install EcoStruxure Machine Expert.
The software EcoStruxure Machine Expert has a Free version after the 42 days trial, please check pages 14 and 16 for more information for the free version limitations:
https://download.schneider-electric.com/files?p_Doc_Ref=DIA3ED2180701EN

The user that wants to use this software needs to have an account in our License Portal in order to register the software:
https://www.se.com/ww/sites/corporate/en/support/software-licensing/user-login

In the past the software was SoMachine and the latest version of this software was the SoMachine V4.3 SP2.
The reference for SoMachine is the SOMNACS43:
https://www.se.com/ww/en/product/SOMNACS43/somachine-software-v4-3-usb-drive-format/

The firmware version of the Modicon M258 for PLC programmed in SoMachine starts in v4.x.x.x and in Machine expert it starts in v5.x.x.x.

In order to program the Modicon M258 you can use a miniUSB cable (TCSXCNAMUM3P or BMXXCAUSBH018) , an pen drive or an ethernet cable.

Released for: Schneider Electric Ireland