User guide

Chapter 1
Features, Installation, Powerup
1–2
The HHT is menu–driven. The display area accommodates 8 lines by 40
characters. You can display up to five rungs of a user program. When
monitoring a program ONLINE, in the Run mode, instructions in a ladder
diagram are intensified to indicate “true” status. A zoom feature is included
to give immediate access to instruction parameters.
SLC 500 PROGRAMMING SOFTWARE Rel. 2.03
1747 – PTA1E
Allen–Bradley Company Copyright 1990
All Rights Reserved
F1 F2
F3 F4 F5
NO
SPACE
PRE/LEN
S
ACC/POS
I
U
ESC
A
7
D
4
T
1
B
8
E
5
R
2
#
0
–
:/
.
C
9
F
6
M
3
SHIFT
ENTER
ZOOMRUNG
Calculator–style,
Color–coded Keyboard
Keys operate with motion and
tactile response.
Display Area
F1 F2 F3 F4 F5
PRESS A FUNCTION KEY OFL
SELFTEST TERM PROGMAINT UTILITY