ABB DCS 800XA 5.1
sie we want to know how to increase History data in IM.Presently 6 month data available in IM& wE WANT TO INCREASE HISTORY Data upto 1 Year.So where we do changes for that.
We have 2 Primary aspect & 2 connectivity server.
IM History does not support runtime changes. You must create a new log in the log template. The new and old may coexist until new log has filled after which old log may be deleted to free up disk space.
Trend seamless retrieval function (auto find correct log) may not work well as it is not written to scavenge for data, trends might need some manual control (read from old log until new is filled up)
On the side note: exactly this change; extend log capacity (and many others!) is easily facilitated with Basic History.