GE Industrial Solutions Entellisys System User Manual - Manual (Page 139)

Discrete inputs/outputs 139
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10.1.3.4 Output configuration
To configure discrete I/O outputs, click Contact Outputs in the Discrete Inputs/Outputs dialog
box. The dialog box lists the configured outputs and a set of four adjustable parameters.
Figure 10-9 Output configuration
The list contains an entry for each output-configured I/O points. Each contact output can have a
user-friendly name. Two next parameters control the behavior of the contact output. The
column labeled Operation controls when the contact output is energized (asserted high) or
de-energized (asserted low). Click a cell to view a combo box with available FlexLogic operands.
Whenever the state of the operand evaluates to true, the contact output is energized. Otherwise
it is de-energized.
The column labeled Seal In controls when the contact output's state can be de-energized after
the operand selected in Operation column is evaluated to false. This parameter can be set to
any available FlexLogic operand. As long as the FlexLogic operand in the Seal In column
evaluates to true, the contact output remains energized even if the Operation FlexLogic operand
evaluates to false. When both FlexLogic operands evaluate to false, contact output is
de-energized. For more information about FlexLogic operands, see
FlexLogic™ on page 147 .
The last column controls whether or not an event should be logged when the contact output
changes its state. Configuration of discrete I/Os is completed with completion of this step.