Super Systems Compact HMI - Manual (Page 25)

Compact HMI and Compact HMI Editor Operations Manual
Super Systems Inc. Page 25 of 60
the condition whose text is displayed on the control. This does not change until (A) AlarmActiveText is evaluated as false or (B) one of
the conditions following AlarmActiveText is evaluated as true.
Category Condition Name Order of
Evaluation within
Category
Condition True or False Result
Text AlarmActiveText First One or more alarms
are on
True Alarm text displayed
Text NormalOpText Second Machine is running
with no alarms
False No change
Text ShutdownText Third Machine is shut down False No change
Text StartupText Fourth Machine is starting up False No change
Table 4 - Example of Condition Evaluation (At Least One True, Others False)
Case 3: All Conditions Are Evaluated as False
The HMI programmer wants a control to be visible when a heating cycle is running and the user wants to manually control the cycle’s
output; this is the default setting for the control. The HMI programmer set up the control so that the control will not be visible when
either the heating cycle is not running or the furnace is in Auto (non-manual) mode. In this case, the heating cycle is running and the
machine is not in Auto mode. Both conditions in the Visibility category are evaluated as false; therefore, the default action (to display
the control) is taken.
Category Condition Name Order of Evaluation
within Category
Condition True or False Result
Visibility HeatModeOff First The heating cycle is
not running
False No change
Visibility AutoModeOn Second The machine is in
Auto mode (output
cannot be manually
adjusted)
False Control is displayed
Table 5 - Example of Condition Evaluation (All False)