Rockwell international Allen-Bradley 1747-PT1, Руководство по началу работы, Страница: 18 / 79

Chapter 1
Setting Up Your Equipment
1–10
Data Entry Keys (
A
7
,
B
8
,
C
9
...)
These blue keys include numbers, letters, and symbols used for addresses,
password, file numbers, and other data. The data you enter always appears
on the prompt/data entry/error message area of the display.
In general, you obtain the upper character of a key by pressing the
[SHIFT]
key first. You do not have to hold it and press next key. Just press and
release
[SHIFT]
and then press the next key.
If you make an error while entering data, press
[ESC]
and re–enter the data,
or use cursor keys and the space key. To complete a data entry, press
[ENTER]
. You can also use the
[ESC]
key to exit the data entry and return to
the next higher (previous) menu level.
Auto Shift
When you enter an instruction address, the HHT automatically goes to
SHIFT mode. This mode is indicated by a small arrow in the bottom right
hand corner of the display.
ENTER BIT ADDR:
ZOOM on XIC
NAME:
EXAMINE IF CLOSED
BIT ADDR:
F1 F2 F3 F4 F5
] [
2.0.0.0.*
Indicates that the HHT is in
SHIFT mode (e.g., to enter
the letter “I” you do not
have to first select SHIFT).
Cursor Keys
, , ,
Use these four green, arrow keys to:
•
Correct data entry errors (either type over or use space key).
•
Move the cursor left, right, up, and down in a ladder program. Rungs not
shown in the HHT display will automatically scroll into view as you
cursor down (or up) in the program.
•
Scroll through controller and I/O configuration selections.
•
Scroll through program file directories.
•
Scroll through the elements and bits of individual data files.
ZOOM and RUNG Keys
The
[ZOOM]
key brings up a display that shows the parameters of an
instruction (helpful with timers, counters, sequencers, etc.; also helpful
during editing).
The
[RUNG]
key moves the cursor to a particular rung. Using the
[RUNG]
key
saves time when you have a long ladder diagram. When you press
[RUNG]
,
you are prompted for the rung number that you want to edit or monitor. You
enter the rung number and press
[ENTER]
, then the cursor moves to the
selected rung and the rung appears at the top of the screen.
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