Rockwell Automation 1761 MicroLogix 1000 Programmable Controllers - Manual (Page 373)

Application Example Programs
E–23
Rung 2:4
Filling machine running too fast for the packing machine. Slow down
the filling machine to allow the packer to catch up.
| Slow Fill |
| +GRT–––––––––––––––+ O:0 |
|–+GREATER THAN +––––––––––––––––––––––––––––––––––––––––(L)–––––|
| |Source A C5:0.ACC| 1 |
| | 0| |
| |Source B 250| |
| | | |
| +––––––––––––––––––+ |
Rung 2:5
If the filler was slowed down to allow the packer to catch up, wait
until the holding area is approximately 1/3 full before allowing the
filler to run at full speed again.
| Slow Fill | Slow Fill |
| +LES–––––––––––––––+ O:0 O:0 |
|–+LESS THAN +––––] [–––––––––––––––––––––––––––––––––(U)–––––|
| |Source A C5:0.ACC| 1 1 |
| | 0| |
| |Source B 150| |
| | | |
| +––––––––––––––––––+ |
Rung 2:6
If the high-speed counter reached its high preset of 350 (indicates
that the holding area reached maximum capacity), it would energize
O:0/0, shutting down the filling operation. Before re-starting the
filler, allow the packer to empty the holding area until it is about
1/3 full.
| HSC Interr Fill Stop |
| due to |
| High Prest |
| |
| C5:0 +LES–––––––––––––––+ O:0 |
|––––] [–––––+LESS THAN +––––––––––––––––––––––+––––(U)–––––+–|
| IH |Source A C5:0.ACC| | 0 | |
| | 0| | | |
| |Source B 150| | | |
| | | | | |
| +––––––––––––––––––+ | | |
| | HSC Interr | |
| | due to | |
| | High Prest | |
| | | |
| | C5:0 | |
| +––––(U)–––––+ |
| IH |
Rung 2:7
| |
|–––––––––––––––––––––––––––––––––+END+–––––––––––––––––––––––––––––––|
| |
Data Table
Addresses
Data (Radix=Decimal)
N7:0 1 1 350 0 0
Reference