The software to program the Harmony ST6 range is EcoStruxure Operator Terminal Expert (former Vijeo XD ).
The software can be download from the next link:
EcoStruxure™ Operator Terminal Expert | Schneider Electric UK

The Harmony ST6 include the next references:
•HMIST6200 ( 4.3" W)
•HMIST6400 ( 7" W)
•HMIST6500 ( 10.1" W)
•HMIST6600 ( 12.1" W)
•HMIST6700 ( 15.6" W)

The Harmony STM6  (modular HMI) include the next references:
•HMISTM6200 ( 4.3" W) + HMISTM6BOX
•HMISTM6400 ( 7" W) + HMISTM6BOX

After the installation of EcoStruxure Operator Terminal Expert, the trial version of the software is available for 21 days and will have to be
activated with the commercial license.

Once you have the software in order to download the application to the Harmony HMI we can use a microUSB cable like the HMIZG936:
HMIZG936 - Harmony ST6, USB transfer cable | Schneider Electric UK

For more information please access to https://digicat.se.com/ or direct to the catalog:
https://download.schneider-electric.com/files?p_Doc_Ref=DIA5ED2181202EN

Released for: Schneider Electric Ireland