Adding parameter constraints, The lonpoint application and plug-in guide 11-11 – Echelon LonPoint Application and Plug-In User Manual

Page 157

Advertising
background image

The LonPoint Application and Plug-in Guide

11-11

Example 2

e

1

< 6:00 event e

1

must happen before 6 AM

6:00 <= e

1

& e

1

<= 7:00 event e

1

must happen between 6 and 7 AM

e

1

< e

2

& e

2

< e

3

& e

3

< 8:00 event e

1

must precede e

2

which must precede e

3

. All

must happen before 8am

Adding Parameter Constraints

The Parameter Constraints button will only be available if Schedule Keeper
was opened in super user mode and one or more system parameters were
defined in Schedule Maker's Name I/O tab. Click the Parameter Constraints
button to open the following window:

Use this window to create, view, modify, and delete constraints for the values set
in the System Parameters window and error messages which will be displayed
if these constraints are violated. Only parameters which were defined in the
Schedule Maker's Name I/O tab can be limited.

In the example above, two parameter constraints have been set. The first states
that the MinTemp parameter must be greater than or equal to 40, and the second
states that the MaxTemp parameter must be less than or equal to 150.

Advertising