How to get data from MB300 Network in 800xA to Compact HMI through LAN
We have a 800xA system in frontend and AC450 at backend. xA servers are connected to the DCN ring through RTA bord. in 800xA there is a MB300 network in control structure and data flow is happening through that.
Now we have another Compact HMI 800 server, which canot be connected to the ring through RTA bord, but we need data only to read from the 800xA system to the Compact HMI system.
800xA server and Compact HMI server will be connected through LAN.
Whether this data exchange is possible? If yes then how?
Normally, you use Multisystem Integration for passing data between different 800xA systems.
However, I do not believe ABB licenses MI for Compact Products so you will probably have to bring the data over using OPC, somehow.
Do not attempt to upload an entire remote system via 3rd party generic OPC uploader. Many objects share same name and uploader may attempt to "merge" them in the uploading system. There are examples when system went so corrupt it had to be deleted.
Partial upload of desired objects only. You need to read in user's guides about Advanced Upload - not too much to find there I'm afraid, but you can in theory limit any upload by editing the .ocs file before appending it. However, next person might just hit the normal upload button and put you in what I warned for in the previous section.
Maybe some fellow AKS member can add more hints?
Yes, data transfer is possible between the systems using Generic OPC. You can google this website for quite a few answers about generic OPC and how to configure it. We've done this on several sites where there are multiple separate 800xA systems on different areas of the plant that need to share 20 or 30 datapoints.
Note that while you can transfer quite a lot of data with Generic OPC, it is NOT in any way a subsitute for MB300 connect in an 800xA system. You can transfer SOME data, maybe a few hundred data points fairly easily, but you get no support in the form of pre-built graphic elements, faceplates, object displays etc. You have to build these yourself. You have to manually configure (or use BDM) every OPC property you want to transfer. You can also run into problems with subscription rates - Stick to 3 seconds or 9 seconds.
And as Stefan has said, take care when configuring how much data to transfer.
( NB: DCN ring is for MOD300, not Master. Have you also got a MOD system as well ?)