,<)?-0)*'")<
Section 6-1
$(%
6-1
Flow Control
Covered configuration items in this example:
•
Simple Counter (for a Simple Counter
no
DM-configurations have to be made).
Application Description
In the following example a tank has to be filled with a fixed amount of liquid. Press-
ing the push button resets the Simple Counter, opens the Gate of the Simple
Counter and opens the valve. The liquid passes through the flow meter into the
tank. The pulse output of the flow meter measures the liquid flow that is propor-
tional to the number of pulses generated (5,000 pulses is equivalent to 1 litre).
After the tank has been filled with exactly 100 litres of liquid the valve and the Gate
of the Simple Counter are closed automatically.
The push button is connected to Digital Input I0 and the valve is connected to Dig-
ital Output O0 of the High-speed Counter Unit. The pulses of the flow meter are
counted by Counter 1 which is configured as Simple Counter (corresponding DIP
switch at the back of the rear panel is in the OFF-position).
The Machine Number of the High-speed Counter Unit is 0. The High-speed Coun-
ter is allocated 40 CIO-words starting from CIO 2000 (n = CIO 2000 + 0 x 10).
A short ladder program for the PLC must be written to control this application. The
ladder program interfaces with the High-speed Counter Unit via the Special I/O
Unit Area in CIO.
Tank
Flow Meter
Valve
Liquid
Push Button (= Open Valve)
CT041
X101
MACH
X100
RUN
CH1
CH2
CH3
CH4
ERC
ERH
A
A
A
A
B
B
B
B
Z
Z
Z
Z
I0
I1
I2
I3
O0
O1
O2
O3
PS204S
Power
AB
AB
CN1
CN2
No.
1
20
1
20
W902-E2-03.book Seite 152 Donnerstag, 7. Oktober 2004 2:06 14
Содержание CS1W-CT021
Страница 1: ...OPERATION MANUAL High speed Counter Units CS1W CT021 CS1W CT041 Cat No W902 E2 03...
Страница 3: ...W902 E2 03 book Seite iv Donnerstag 7 Oktober 2004 2 06 14...
Страница 5: ...W902 E2 03 book Seite vi Donnerstag 7 Oktober 2004 2 06 14...
Страница 39: ...W902 E2 03 book Seite 24 Donnerstag 7 Oktober 2004 2 06 14...
Страница 59: ...A 2 Section 2 3 W902 E2 03 book Seite 44 Donnerstag 7 Oktober 2004 2 06 14...
Страница 155: ...4 Section 4 6 W902 E2 03 book Seite 140 Donnerstag 7 Oktober 2004 2 06 14...
Страница 199: ...G W902 E2 03 book Seite 184 Donnerstag 7 Oktober 2004 2 06 14...