Why using GeoScada 2025 with OFS 3.63 SP3 when a write command on a string is sent to the PLC, this one receives only the first character and display on GeoScada only the first character?

From GeoScada when you are sending a write command on a string to the PLC through OFS, GeoScada converts the String into a canonical data type where each character is coded on two bytes (VT-Array): UTF-16)

OFS doesn’t support this conversion in VT_UI2.

However, OFS can expose a proper string as VT-BSTR. To do it, in GeoScada the argument must be added ;C at the end of each item.

It must be done as follows:

The result is the following:

Product line :

GeoScada Version 2025 (Build 87.9397) and above

OFS 3.63 SP3

Publicerad för: Schneider Electric Sverige