Installation manual
CNC 8035
7.
INTRODUCTION TO THE PLC
Modular structure of the program
(SOFT M: V15.3X)
(S
OFT T: V16.3X)
·292·
7.4.1 First cycle module (CY1)
This module is optional and will only be executed when the PLC is turned on. It is used to initialize
the different resources and variables with their initial values, before proceeding to execute the rest
of the program.
This module operates by default with the real values of resources I, O, M.
It is not necessary for this to be at the beginning of the program, but must always be preceded by
the instruction CY1.
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