User-Defined Digital Inputs Section
User-Defined Input n Label
This user congured label has a 30-character limit and can be displayed on the Operation
screen.
Show on Operation Screen
These points can be displayed on the Operation screen because they can be congured
to block an operation. (Default: No)
Require SCADA Acknowledgement
Because these inputs will typically represent some form of alarm condition, when a
SCADA acknowledgement is required, it will clear the alarm only if the User-Dened
Input setting has become inactive. (Default: No)
User-Defined Input n Status
This shows the Active or Inactive state of the User-Dened Input setting.
Clear Input n Button
When the Yes option is selected for the Require SCADA Acknowledgement setpoint, the
Active state of the User-Dened Input setting will persist after the physical input has
become de-active until receipt of this button command or the corresponding control point.
User-Defined Input n On action
These functions are activated by a User-Dened Input setting change of state from the
Inactive to Active state and are not locked to the Active state. For a command such
as the Prohibit Restoration command, the DNP control point can execute an Enable
Restoration command to cancel the Prohibit Restoration command. A subsequent
User-Dened Input state change from the Inactive to Active state would then
re-execute the Prohibit Restoration command. (Range: Disable Automatic Operation,
Prohibit Restoration, Block Close Operations, Block Open and Close Operations, and
None; Default: None)
When User Input n Is On, Block Operation of
This setpoint selects the switch the User-Defined Input setting will block.
(Range: Switch 1, Switch 2, Switch 3, and All; Default: Switch n)
Front Panel LCD Screen
The “Real-Time Data” section of the LCD screen shows the state of the User-Dened
Input setting: “User Inputs: 1 2 3” on line one, and “State: 0 1 1” on line two.
When the Yes option is selected for the Require SCADA Acknowledgement setpoint,
the “User Command” section of the LCD screen includes an option to clear each of the
configured User-Defined Inputs. Press the ENTER button on the faceplate to run the
Clear User Input n command.
162 S&C Instruction Sheet 766-530
Communication Setup
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