Rockwell Automation 1761 MicroLogix 1000 Programmable Controllers - Manual (Page 380)

Preface MicroLogix 1000 Programmable Controllers User Manual
E–30
RPM Calculation Ladder Program
Rung 2:0
Ensures that the measurement value is initialized each REM Run mode
entry.
| Last timeout |
| First value storage |
| Pass register |
| S:1 +MOV–––––––––––––––+ |
|––––] [–––––––––––––––––––––––––––––––––––––––+–+MOVE +–+–|
| 15 | |Source C5:0.ACC| | |
| | | 0| | |
| | |Dest N7:0| | |
| | | 0| | |
| | +––––––––––––––––––+ | |
| | Frequency | |
| | determination | |
| | counter | |
| | C5:0 | |
| +–––––(RES)––––––––––––+ |
| | | |
| | Counts last rate | |
| | measurement | |
| | period | |
| | +CLR–––––––––––––––+ | |
| +–+CLEAR +–+–|
| | |Dest N7:1| | |
| | | 0| | |
| | +––––––––––––––––––+ | |
| | Frequency in | |
| | Hertz period | |
| | +CLR–––––––––––––––+ | |
| +–+CLEAR +–+–|
| | |Dest N7:4| | |
| | | 0| | |
| | +––––––––––––––––––+ | |
| | RPM based on | |
| | counts per turn | |
| | register N7:2 | |
| | +CLR–––––––––––––––+ | |
| +–+CLEAR +–+–|
| |Dest N7:5| |
| | 0| |
| +––––––––––––––––––+ |