Values are sent to the bus through an additional “control” communication object. Whenever
a value is sent to the bus through the “control” object, the indicator display is also updated
automatically.
Three additional parameters are defined: The
Minimum input value
and
Maximum input value
parameters limit the range of valid values that can be entered through the numeric keypad. If
users enter a value that is outside this range, the value will not be accepted; instead, an error
message will be shown. The error text can be customized through the
Error text for invalid input
parameter.
The range of valid values for the
Minimum input value
and
Maximum input value
parameters
equals the range of the selected data type. The default value for the parameter will be the
minimum or maximum value of the valid range, respectively.
3.4
Control Pages
72
