Rockwell Automation 2711E-ND1 Reference Manual PanelBuilder 1400e - Manual (Page 87)

81 Numerics
Publication 2711E-6.15 – November 1998
Controls
Field Meaning
Control The Numeric Input Cursor Point uses the following controls:
Keypad Numeric Input identifies where the terminal writes the
value to the PLC. You can assign only a tag to this control.
Define this control for all Decimal Point options.
Optional Keypad Write Exprn performs a mathematical
calculation or logical operation on the value the operator enters
at the PanelView terminal, then sends the result to the Keypad
Numeric Input control. Use of this control is optional. You can
assign only an expression to this control. See “Using Write
Expressions” later in this chapter for information about
assigning this control.
Numeric Decimal Point Position indicates or determines the
position of the decimal point.
If you specified the decimal point as PLC Controlled, you can
assign a tag or expression to this control.
If you specified the decimal point as Decimal Key Controlled,
you can assign only a tag to this control.
Enter Key Control and Enter Key Handshake are used
together to provide handshaking between the PLC and the
terminal. You can assign only a tag to the Enter Key Control.
You can assign a tag or expression to the Enter Key Handshake
control.
See “Enter Key Handshake Operation” later in this chapter for
more information about basic handshake operation.
When the Raise or Lower buttons are pressed, the terminal sets
the Enter Key Control (after the delay specified in the Enter Key
Control Delay field in the Configure Terminal Setup dialog box)
and ignores the Enter Key Handshake control. After the button
is released, the terminal monitors the Enter Key Handshake
control for a 0 to non-0 transition. If this does not occur within
the specified Enter Key Handshake Time, a minor fault occurs.
If the Raise or Lower button is released before the Enter Key
Control Delay has expired, the terminal waits until that time
expires before setting the Enter Key Control. After the Enter Key
Control is set, the terminal monitors the Enter Key Handshake
control for up to the Enter Key Handshake Time for a 0 to non-0
transition.
The terminal resets the Enter Key Control in these situations:
•
An error message appears if the terminal does not receive
acknowledgement (transition from 0 to another value) within
the Enter Key Handshake Time specified in the Timing
Parameters tab of the Configure Terminal Setup dialog box.
•
If the Enter Key Handshake is unassigned, the Enter Key
Control remains set for the duration of the Push Button Hold
Time if the value is entered using the Enter key. If the raise or
lower keys are used, the Enter Key Control waits for the
duration of the Enter Key Delay time after the Raise or Lower
key is released.
•
If the handshake occurs.Define these controls for all Decimal
Point options.
Define these controls for all Decimal Point options.