Programming transitions. Schneider Electric PL7 Junior/Pro - Premium PLC Application-specific functions - Step-by-step axis control

Introductory example

Programming transitions

Introduction

Step 0 -> 1

Step 1 -> 2

Step 2 -> 3

Step 3 -> 4

Step 4 -> 5

Step 4 -> 8

Step 5 -> 6

Step 8 -> 6

Step 6 -> 2

The transitions drawn in the Grafcet are programmed in the following way:

! (*X channel not in error, claw open, Auto_man switch set to Auto, Y channel not in error and automatic mode activated*)

NOT ERROR AND NOT CAPTEUR_3 AND NOT AUTO_MAN AND CYCLE AND NOT

ERROR_Y AND MODE_AUTO

! (*Test: axes ready and referenced*)

DONE AND CALIB AND DONE_Y AND CALIB_Y

! (*Moving part in stand-by position and part detected on belt A*)

CAPTEUR_1 AND CYCLE AND NEXT AND NEXT_Y

! (*Moving part in position to take part detected on belt A*)

AT_POINT AND NEXT AND NEXT_Y AND AT_POINT_Y

! (*Type 1 part and claw closed*)

CAPTEUR_2 AND CAPTEUR_3

! (*Type 2 part and claw closed*)

NOT CAPTEUR_2 AND CAPTEUR_3

! (*Moving part in position on belt B*)

AT_POINT AND NEXT AND NEXT_Y AND AT_POINT_Y

! (*Moving part in position on belt C*)

AT_POINT AND NEXT AND NEXT_Y AND AT_POINT_Y

! (*Claw open)

NOT CAPTEUR_3 AND CYCLE

TLX DS 57 PL7 40E 09.2000

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