Rockwell Automation 1746-XXXX SLC 500 4-Channel Analog I/O Modules User Manual - Manual (Page 79)

Publication 1746-UM005B-EN-P - June 2004
Programming Examples 6-17
Rung 2:2
Scale values in the 90–100% range to the decimal range for the 4–20 mA analog
output.
| Subtract |
| the input |
| min. |
| B3 B3 +SUB–––––––––––––––+ |
|––––]/[––––––––]/[–––––––––––––––––––––––––––––––––––+–+SUBTRACT +–+–|
| 0 0 | |Source A N7:0| | |
| | | 0| | |
| | |Source B 90| | |
| | | | | |
| | |Dest N7:1| | |
| | | 0| | |
| | +––––––––––––––––––+ | |
| | | |
| | Multiply | |
| | by the | |
| | scaled | |
| | range | |
| | +MUL–––––––––––––––+ | |
| +–+MULTIPLY +–+ |
| | |Source A N7:1| | |
| | | 0| | |
| | |Source B 24966| | |
| | | | | |
| | |Dest N7:1| | |
| | | 0| | |
| | +––––––––––––––––––+ | |
| | Divide | |
| | result by | |
| | input | |
| | range | |
| | +DDV–––––––––––––––+ | |
| +–+DOUBLE DIVIDE +–+ |
| | |Source 10| | |
| | | | | |
| | |Dest N7:1| | |
| | | 0| | |
| | +––––––––––––––––––+ | |
| | Add offset | |
| | +ADD–––––––––––––––+ | |
| +–+ADD +–+ |
| | |Source A N7:1| | |
| | | 0| | |
| | |Source B 6242| | |
| | | | | |
| | |Dest O:2.0| | |
| | | | | |
| | +––––––––––––––––––+ | |
| | Clear flt | |
| | bit from | |
| | overflow | |
| | S:5 | |
| +––––(U)–––––––––––––––+ |
| 0 |
Rung 2:3
| |
|–––––––––––––––––––––––––––––––––––––+END+––––––––––––––––––––––––––––––––––––|
| |