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Mitsubishi FX Programmable Logic Controllers, 2nd Edition
book

Mitsubishi FX Programmable Logic Controllers, 2nd Edition

by John Ridley
July 2004
Intermediate to advanced content levelIntermediate to advanced
352 pages
9h 30m
English
Newnes
Content preview from Mitsubishi FX Programmable Logic Controllers, 2nd Edition
//INTEGRAS/ELS/PAGINATION/ELSEVIER UK/PLC/3B2/FINALS-7-6-04/0750656794-CH03 2.3D 326 [324–331/8]
19.6.2004 9:22PM
32.2 Principle of operation ^ STEP___ CNTR1
1. The project STEP_CNTR1 is used to control two pistons A and B similar to PNEU4
(refer page 177).
2. Line 0
(a) On switching the PLC to RUN, the contacts M8002 momentarily operate to
enable the step counter C0 to be reset to zero.
(b) With the stop switch OFF, its X1 normally closed contacts will be used to ensure
the step counter C0 remains reset.
(c) The M510 contacts are used to reset the step counter ba ck to zero at the end of
each cycle.
326 Mitsubishi FX Programmable Logic Controllers ...
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Publisher Resources

ISBN: 9780750656795