Compact HMI and AC800M Controller Communication Without PLC Connect?
Is it possible to read signals form AC800M controller directly through Compact HMI without the use of PLC Connect?
If yes, how to do that?
Thanks in advance.
Voted best answer
Is it sensible - No
PLC Connect is the tool that does bulk data handling of tags and connections to the PLC. It manages Alarms, Data Scaling and organizes tags into "objects" for HMI and data handling. If you have more than a couple hundred data values to display and don't use PLC connect, then you are like a one legged man in an *** kicking contest. Any money you save will be more than wasted by the engineering hours required to make the product work.
IIRC, PLC Connect is already included in Compact HMI. If not and if you really insist on not using it, then you could use a Generic Third Party OPC Network.
I guess you could add and upload the AC 800M OPC server like any other OPC DA server using Generic OPC Network object?
Since the AC 800M Connect of CHMI is of a "light" version, there are few ready made graphics for you.
For alarm & event support, you need to pre-create objects in the system having the alarm cond's SourceName attribute as object name, or that SourceName set in a Controller Name aspect to create the alarm > object association "artificially" on an arbitrary named object. Needless to say, A&E collection require an Event Collector service group and provider.
With the full version of AC 800M Connect, the Control Builder M is creating those objects and their GUIDs handed over to the alarm cond and simple event detector blocks for association w/o the aforementioned name matching.