Setting a List Parameter

Using list settings, the user is able to select several elements from a list in order to perform tasks such as defining a trip command or defining the measurements that will be displayed on Measured Value Panels. As a rule, the selected elements are linked by an “OR” operator. Other operators (NOT, OR, AND, NOT OR and NOT AND) are available in the LOGIC function group for linking the selected list items. In this way binary signals and binary input signals can be processed in a Boolean equation tailored to meet user requirements. For the DNP 3.0 communication protocol, the user defines the class of a setting instead of assigning operators. The definition of a trip command shall be used here as an illustration.

Control Step / Description

Control Action

Display

Step 0

Select a list setting (in this example, the parameter MAIN: Fct.assig.trip cmd.1 at “Par/Func/Glob/ MAIN” in the menu tree). The down arrow (↓) indicates that a list setting has been selected.

Par/Func/Glob/MAIN
Fct.assign.trip cmd.

           ↓

Step 1

Press the “down” key. The first function and the first selected signal will appear in the third and fourth lines, respectively. The symbol “#01” in the display indicates the first item of the selection. If MAIN: Without function appears for the first item, then this means that no function assignment has yet been made.

Par/Func/Glob/MAIN
Fct.assign.trip cmd.
           #01 DIST
Trip zone 1

Step 2

Scroll through the list of assigned functions by pressing the “right” and “left” keys.

Par/Func/Glob/MAIN
Fct.assign.trip cmd.
OR         #02 DIST
Trip zone 2

Once the end of the list is reached, the display shown on the right will appear.

Par/Func/Glob/MAIN
Fct.assign.trip cmd.
           #05 MAIN
?????

Step 3

Press the ENTER key at any position in the list. The LED indicator labeled EDIT MODE will light up.

Par/Func/Glob/MAIN
Fct.assign.trip cmd.
           #02 DIST
Trip zone 2

Step 4

Scroll through the assignable functions by pressing the “right” and “left” keys in the input mode.

Par/Func/Glob/MAIN
Fct.assign.trip cmd.
           #02 DIST
Trip zone 4

Step 5

Select the operator or the class using the “up” and “down“ keys. In this particular case, only the “OR” operator can be selected. There is no limitation on the selection of classes.

Par/Func/Glob/MAIN
Fct.assign.trip cmd.
OR         #02 DIST
Trip zone 4

Step 6

Press the ENTER key. The LED indicator will go out. The assignment has been made. The unit will now operate with the new settings.

If no operator has been selected, the “OR” operator is always assigned automatically when the ENTER key is pressed. There is no automatic assignment of classes.

Par/Func/Glob/MAIN
Fct.assign.trip cmd.
OR         #02 DIST
Trip zone 4

Step 7

Press the “up” key to exit the list at any point in the list.

Par/Func/Glob/MAIN
Fct.assign.trip cmd.

           ↓

Step 8

If you wish to reject the new setting while you are still entering it (LED indicator labeled EDIT MODE is on), press the CLEAR key. The LED indicator labeled EDIT MODE will be extinguished.

Par/Func/Glob/MAIN
Fct.assign.trip cmd.
OR         #02 DIST
Trip zone 2