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MicroLogix 1000 Programmable Controllers User Manual
Preface
Program Flow Control Instructions in the Paper Drilling
Machine Application Example
This section provides ladder rungs to demonstrate the use of program flow control
instructions. The rungs are part of the paper drilling machine application example
described in appendix E. You will be adding to the main program in file 2. The
new rungs are needed to call the other subroutines containing the logic necessary to
run the machine.
Rung 2:5
Calls the drill sequence subroutine.
operation of a drilling sequence and restarts the conveyor upon
completion of the drilling sequence
|
|–––––––––––––––––––––––––––––––––––––––––––––––+JUMP TO SUBROUTINE+–|
|
|
Rung 2:6
Calls the subroutine that tracks the amount of wear on the current
drill bit.
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|–––––––––––––––––––––––––––––––––––––––––––––––+JUMP TO SUBROUTINE+–|
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Rung 2:7
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|––––––––––––––––––––––––––––––––––––+END+–––––––––––––––––––––––––––|
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10–10
This subroutine manages the
+JSR–––––––––––––––+ |
|SBR file number
+––––––––––––––––––+ |
+JSR–––––––––––––––+ |
|SBR file number
+––––––––––––––––––+ |
6| |
7| |
|
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