Rockwell-automation 2705 REDIPANEL KEYPAD MODULE USER MANUAL Manuel d'utilisateur Page 9

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Chapter 2
Product Introduction
2–2
The Keypad Module combines the functions of standard thumbwheel or push
button devices with the built–in capabilities of a remote I/O rack.
The Keypad Module communicates directly with the programmable
controller via the Remote I/O link. You can install a 2705 module anywhere
along that link.
To the PLC, the Keypad Module looks like a hardwired remote I/O rack.
The function keys and the LED output signals are programmed as discrete
I/O in the PLC. Communication occurs through I/O image table updates.
Figure 2.1 shows a typical application.
Figure 2.1
Typical RediPANEL Keypad Application
=
2705 RediPANEL Modules Combine
Thumbwheels and Push Button Operator Stations
with Remote I/O
+ + +
A
S
B
+
Power
Supply
2705 RediPANEL
Keypad Module
Wiring Remote
I/O Node
Adapter
I/O Modules Power Supply
and
Rack
-
BUL 2705 KEYPAD
MESSAGE
12 34
Message Displays
Thumbwheels
Push Buttons
Pilot Lights
Keypad
Applications
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