I will be given access to an AspenTech InfoPlus 21 endpoint, but the systems seems to be quite legacy and not very well (publicly) documented. I will need to query some data (i.e. explore what is i...

What is the function of a historian in terms of OPC and PLC?

I'm working on the latest rev of hyperledger-composer (V0.13) and have built a network with multiple roles, each of which can invoke selected transactions within the blockchain. I would now like to...

I am fairly new to Proficy Historian and Python. The purpose of my application is to start extracting data from Proficy. GE (Proficy) Historian is installed on a Virtual Machine Server A while my ...

How can I retrieve raw time-series data from a Proficy Historian/iHistorian? Ideally, I would ask for data for a particular tag between two dates.