Rockwell Automation 1761-HHP-B30 MicroLogix 1000 with Hand-Held Programmer (HHP) - Manual (Page 215)

Chapter 11
Using Data Handling Instructions
11–32
Rung 7:4
Ensures that the operator cannot select a paper thickness of 0. If this
were allowed, the drill bit life calculation could be defeated resulting
in poor quality holes due to a dull drill bit. Therefore the minimum
paper thickness used to calculate drill bit wear is 1/4 in.
| debounced debounced |
| BCD BCD |
| value value |
| +EQU–––––––––––––––+ +MOV–––––––––––––––+ |
|–+EQUAL +–––––––––––––––––––––––––––+MOVE +–|
| |Source A N7:12| |Source 1| |
| | 0| | | |
| |Source B 0| |Dest N7:12| |
| | | | 0| |
| +––––––––––––––––––+ +––––––––––––––––––+ |
Instruction List
File 7, Rung 2
➀
Moves the single digit BCD thumbwheel value into an internal integer
register. This is done to properly align the four BCD input signals prior
to executing the BCD to Integer instruction (FRD). The thumbwheel is used
to allow the operator to enter the thickness of the paper that is to be
drilled. The thickness is entered in 1/4 in. increments. This provides a
range of 1/4 in. to 2.25 in.
FUN GRAPHIC PARAMETER
CODE SYMBOL MNEMONIC NAME ADDRESS VALUE FORCES
–––– ––––––– –––––––– –––– ––––––– ––––– ––––––
10 MPS
22 –] [– AND BCD bit 0
I/11 0
40 –( )– OUT FRD bit 0
N14/0 0
11 MRD
22 –] [– AND BCD bit 1
I/12 0
40 –( )– OUT FRD bit 1
N14/1 0
11 MRD
22 –] [– AND BCD bit 2
I/13 0
40 –( )– OUT FRD bit 2
N14/2 0
12 MPP
22 –] [– AND BCD bit 3
I/14 0
40 –( )– OUT FRD bit 3
N14/3 0
➀ This rung accesses I/O only available with 32 I/O controllers. Therefore, do not include this rung if you are
using a 16 I/O controller.