July 2004
Intermediate to advanced
352 pages
9h 30m
English
Content preview from Mitsubishi FX Programmable Logic Controllers, 2nd Edition
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//INTEGRAS/ELS/PAGINATION/ELSEVIER UK/PLC/3B2/FINALS-7-6-04/0750656794-CH01 7.3D – 176 – [175–179/5]
19.6.2004 9:15PM
17.2 Sequence of operation ^ automatic cycle
The sequence of operations for the two pistons is as follows:
1. Press Start.
2. Aþ Piston A OUT.
3. Bþ Piston B OUT.
4. A Piston A IN.
5. 5-sec time delay.
6. B Piston B IN.
7. Repeat sequence.
17.3 Seq uence function chart ^ PNEU4
Start X0
State S0 Startup Sequence
Stop X1
X2
X4
State S1 SET Y0 A+
X3
X4
State S2 SET Y1 B+
X3
X5
State S3 RST Y0 A–
X2
X5
State S4 T.DLY
T0
5 Secs
T0
State S5 RST Y1 B–
X2
X4
State S6 End of Sequence
176 Mitsubishi FX Programmable Logic Controllers
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