TP 277, OP 277 (WinCC flexible) - Service, Support Download

Transcript
Operating a Project
8.5 Entering Values Using the Keys
8.5.5
Entering and Editing Numerical Values
Formats for Numerical Values
You can enter values in numerical input fields based on the following formats:
• Decimal
• Hexadecimal
• Binary
Limit Value Test of Numerical Values
Tags can be assigned limit values. If you enter a value which lies outside these limits, the
value is not accepted, for example 80 where the limit value is 78. In this case a system alarm
is output on the HMI device when an alarm window is configured. The original value is
displayed again.
Procedure
You can enter numerical and hexadecimal values character-by-character using the system
keys.
Proceed as follows:
1. Select the desired input field within the screen with
TAB
.
The existing value is selected in the input field.
2. Enter the value using the numeric keypad.
You have the following options to enter a value:
– The existing value is deleted when you enter the first character. Completely reenter
the value.
– Press
SHIFT
and a cursor key simultaneously. The selection of the field content is
cancelled. Move the cursor in the existing value. You can now edit the characters of
the current value or add characters.
Use the
INS
DEL
key to delete the character to the right of the cursor. Use the
key to
delete the character to the left of the cursor.
To enter the hexadecimal characters "A" to "F" switch the numerical keypad to letter
assignment with the
– If the LED of the
HELP
A-Z
key.
key is lit, info text is available for the selected object or the
current screen.
Use the
3. Select
8-16
ENTER
HELP
key to display the info text for the operator control or the current screen.
to confirm your entry.
TP 277, OP 277 (WinCC flexible)
Operating Instructions, 09/2007, 6AV6691-1DH01-0AB0