Design, Functions and Operation
2
Design, Functions and Operation
This chapter contains information on the design and principle of operation of the
2.1
Basic System Design - without External 1/0s
The following section discusses the basic unit without expansions. The basic unit has inputs and
outputs available on board.
Basic Unit
9
RUN
10
STOP
RUN
STOP
11
EWA0234S
\
Battery compartment
8 Yellow error
2 Front connectors for digital inputs
9 Connector for fiber optic cable
(1 32.0 to I 33.7) and
for digital outputs (Q 32.0 to Q 32.7; Q 33.0 to
IO
Displays for operating mode: green LED
RUN;
Q 33.3 or Q 34.o to Q 34.3)
red LED STOP
3
failure display
11 Operating mode selector switch
4
switch
12 DIP switch for subunit identification
5 LED display for digital inputs and outputs
13 Receptacle for memory
6 Power supply terminals
14
Serial interface for programmer
text display
7 Connector for
bus units
operator panel
or
LAN
(not visible)
Interface
59.3) and
for counter inputs (IW 36,
38)
EWA 4NEB 8126210-02
Figure 2-1.
Controls and Interfaces
2-1