numeric keypad to enter the specific
PLC memory address
. Select the
PLC Network Address
(if
applicable) and
HMI communications port
. Click
Enter
to go back to prior dialog box.
16. Select either
Before Writing
or
After Writing
. This determines whether the coil is written to before
the new value is written to the PLC register or immediately after when the Enter key is pressed. Select
either
Reset
(0) or
Set
(1) to determine which value is written to the PLC coil.
17. Select the
User Level
you wish to assign to the Numeric Input object. If User Level 0 is selected (the
default setting), the numeric entry screen will be immediately displayed on the HMI when the assigned
function key is pressed. If User Level 1-4 is selected, the OIT displays a password entry screen that
requires the OIT operator to enter a six digit password before access to the numeric entry screen is
granted.
18. Click
OK
. The Numeric Input Object is displayed on the main screen of BlueLeaf as a series of pound
‘#’ signs to represent the numeric value. If the Type selected is Signed, then a $ symbol is displayed to
indicate the ‘+/-‘ sign. If necessary, use the mouse to drag the object to the location on the window
that you want it. You can also highlight the object to display the small white perimeter boxes and
adjust the size. Simply move the mouse cursor over the appropriate white box until the mouse cursor
changes to a double-arrow symbol, then click and drag to change the size.
Displaying and Using the Numeric Entry Screen
Now that you know how to create a Numeric Input object, let’s go through an example that shows how the OIT operator can
enter a new value into a PLC register using the BLU300. For this example, you will create a simple startup screen for the
BLU300 that has a text object and a Numeric Input object. You will assign Function Key F2 to the Numeric Input object so
that when F2 is pressed, the Numeric Entry screen is displayed. You will also configure a minimum and maximum range
value to show this feature.
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Blue Series Installation & Operation Manual
