Rockwell Automation 1761-HHP-B30 MicroLogix 1000 with Hand-Held Programmer (HHP) - Manual (Page 149)

Chapter 8
Using Basic Instructions
8–30
File 2, Rung 4
Applies the above start logic to the conveyor and drill motor.
FUN GRAPHIC PARAMETER
CODE SYMBOL MNEMONIC NAME ADDRESS VALUE FORCES
–––– ––––––– –––––––– –––– ––––––– ––––– ––––––
20 |–] [– LD
Machine RUN Latch
B/0 0
10 MPS
22 –] [– AND
Drill Home LS
I/5 0
12 MPP
40 –( )– OUT
Conveyor Enable
O/5 0
40 –( )– OUT
Drill Motor ON
O/1 0
Adding File 6
This subroutine controls the up and down motion of the drill for the paper
drilling machine.
Drill Home
I/5 Drill On/Off O/1
Drill Retract O/2
Drill Forward O/3
Drill Depth
I/4
Ladder Rungs
Rung 6:0
This section of ladder logic controls the up/down motion of the drill for
the book drilling machine. When the conveyor positions the book under the
drill, the DRILL SEQUENCE START bit is set. This rung uses that bit to
begin the drilling operation. Because the bit is set for the entire
drilling operation, the OSR is required to be able to turn off the forward
signal so the drill can retract.
| Drill |Drill Subr| Drill |
| Sequence | OSR | Forward |
| Start | |
| B3 B3 O:0 |
[–––] [––––––––[OSR]–––––––––––––––––––––––––––––––––––––––––(L)––––––|
| 32 48 3 |