Link object config items to IO/Registers

[MikeForshock]

Many systems (should) link the appropriate Alarm Points (Low, Low-Low, High, High-High, etc.) operators configure within the HMI/SCADA software (Geo SCADA) to the registers within the controller (PLC).

Example:

We have a point with a value between 0-100

High-High: 95

High: 90

Low: 10

Low-Low: 5

These limits would then be linked, bi-directionally, to the appropriate registers in the controller. Modbus in this example.

Point.HighLmtStd <> Controller.400100

In the interim we have created a logic script to move the Geo SCADA config values to the created analog output points. This is a single direction and works for "simple" systems, but others with local HMI that allows for these and even some dynamic set point algorithms (avg. deviations...) are not connectable in these manner.

The unfortunate reality is that this significantly increases the Point usage. Perhaps give us a "freebie" that can link within the Advanced drivers point config. That would definitely be appreciated!

[sbeadle]

Thank you Mike.

A similar feature was part of the simple OPC driver but I don't think many people used it.

[MikeForshock]

@sbeadle 
Missed this update, thanks. 
It would not need be recorded or any other use outside the config of the point.  Hope it gets considered still

[du5tin]

+1 for this request. We maintain and build systems that 'waste' thousands of points on static configuration information because the alarming setpoints live in the RTU/PLC and not in SCADA. It would be awesome to see some of that become bi-directional to reduce integration effort (fewer hours spent configuring ranges and set points on points) and also to make Geo SCADA values more closely match the values in the PLC. 

We had looked into the Simple OPC driver functionality a long time ago but we couldn't figure it out. Could also be because our PLC tags didn't match the format it was expecting. 

Anyway, this mindset or way of working is very very common in oil and gas on just about every PLC platform. The HMI is just a view of what is in the PLC.