The objects chapter 10 – Rockwell Automation 2711 PANELBUILDER SOFTWARE USER MANUAL User Manual

Page 303

The Objects

Chapter 10

10-38

Configure the Enter key with a handshake so the PLC controller can
acknowledge that a value has been received from the terminal. Define two
PLC addresses: the Enter Key Control address and the Enter Key
Handshake address. When the operator presses the Enter key to send the
value to the PLC controller, the terminal sets the Enter Key Control
address to 1 (after a 400 msec. delay). You must have a line in your PLC
program to turn on the bit at the Enter Key Handshake address, to inform
the terminal that the Enter Key bit has been received. When the terminal
sees this bit on, it turns off the Enter Key Control bit.

If the terminal does not receive acknowledgement (transition from 0 to 1)
within 4 seconds, (or the Enter Key Handshake is unassigned), it displays
an error message in the Fault Window and resets the Enter bit. If the Enter
Key Handshake is unassigned, the Enter bit will remain set for the duration
of the button hold time or for as long as the button is pressed, whichever is
longer.

IMPORTANT: All touch screen input is disabled while the terminal is
waiting for handshake acknowledgement.

Decimal Formatting

To allow an operator to enter numbers with decimal points, choose Format
from the Object menu. The menu item Decimal Point will be highlighted.
Press Enter to open the list of choices for Decimal Point entry and choose
one of the following:

Fixed Position specifies a set number of digits to be displayed after the

decimal point in the window. For example, if the setting was for three
digits after the decimal, an operator’s entry would appear as follows:

Table 10.O

Fixed Position Decimal Point

ББББББББ

Digits Entered

БББББББББ

Keypad Control Address Value

ББББББББ

Number Displayed

ББББББББ

БББББББББ

100

ББББББББ

БББББББББ

120

ББББББББ

.12

ББББББББ

123

БББББББББ

123

ББББББББ

.123

ББББББББ

1234

БББББББББ

1234

ББББББББ

1.234

ББББББББ

12345

БББББББББ

12345

ББББББББ

12.345

PLC Controlled allows the PLC controller to set the number of digits

to be displayed after the decimal point.