When using the OPC DA module, all the tags indicate "false" in the "settable" column. This is a problem for me because I want to set values in the data points associated to the tags. They really have "write" access (I don't have any problem with read access).
I did some research and I have found it that very old versions of Mango allowed to manually edit data points. I have tested one of this old versions and I was able to manually edit a new data point with "settable" set to true. It worked well and I was able to set a value in the data point.
This is my first question in this forum. Let me know if there is something wrong.