1. Exercise 1.
The AND Function
Problem Description
A press stamp 1.0 is to advance
only if a push button is actuated and a protective guard is closed. If one of
these conditions is not met, the press tool is to return immediately.
The position of the closed
protective guard B1 is monitored by a proximity switch B1. The press tool is
advanced or retracted by means of a spring return solenoid valve (Coil Y1).
·
Draw the
electrical circuit diagram and Electro-pneumatic circuit diagram.
·
Assemble the
equipment.
·
Formulate the
PLC program using MultiProg
·
You can use any one or all of the five languages available.
Solution:
a) Electro-Pneumatic Circuit Diagram
b) Electrical Circuit Diagram
c) Variables for FESTO PLC:
Name
|
Attrib
|
Type
|
Comment
|
Input0_0
|
[Input]
|
BOOL
|
Start
Switch S1
|
Input0_1
|
[Input]
|
BOOL
|
Safety
Sensor B1
|
Output0_0
|
[Output]
|
BOOL
|
Cylinder
Extends Y1
|
d) Ladder programming:
e) Instructions list programming:
LD Input0_0
AND Input0_1
ST Output0_0
f) Statement List Programming
Output0_0:= Input0_0 AND Input0_1;
g) Function Block Diagram programming:
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