Issue
In a Niagara R2 / Microsmart integration with revision 9 controllers, what's the best way to implement the MsL9Value object?
Environment
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Cause
Unknown Cause
Resolution
The only way to effectively implement this object is to do the following:
- Create a virtual AI point in the revision 9 MicroSmart controller. This is a standard AI point with no input address assigned to the INPUT field.
- Learn it into the UNC station.
- Create a MsL9Value object in the workspace of the virtual AI point's shadow object.
- The only property that needs to be assigned is the "logpt". This must be a numeric value 1 to 250. If more than one MsL9Value object is used under a L9 controller, it should be a different number in each.
Refer to ibsMS-2.302.514a Release Notes.pdf for additional details of this object.
The UNC can now send a value down to the virtual AI which, in turn, can be used as a manual setpoint input to a Loop point or Mode Control point. The MsL9Value object can be linked to a GxText object providing the building operator the ability to change the value from a web graphic.