Rockwell Automation 1203-SM1 SLC to SCANport Communication Module - Manual (Page 47)

4–19 Using Enhanced Mode
Publication 1203–5.9 –– October 1996
The portion of the program shown in Figure 4.15 provides start/stop
control and a frequency reference to the 1305 drive connected to
SCANport channel 1. The user start is a normally open push button,
while the user stop is a normally closed push button.
Figure 4.15
Example of Drive 1 Control and Reference
| Drive 1 Drive 1 Drive 1 |
| User User START |
| Momentary Maintained Command |
| START NOT STOP Bit |
| Input Input |
| I:2.0 I:2.0 O:1.2 |
|–––––] [–––––––––––––––––––] [––––––––––––––––––––––––––––( )–––––|
| | 0 | 1 1 |
| |Drive 1 |Drive 1 | |
| |START |RUNNING | |
| |Command |Status | |
| |Bit |Bit | |
| | O:1.2 I:1.2 | |
| +–––] [––––––––]/[––––+ |
| 1 1 |
| Drive 1 Drive 1 |
| User STOP |
| Maintained Command |
| NOT STOP Bit |
| Input |
| I:2.0 O:1.2 |
|–––––]/[––––––––––––––––––––––––––––––––––––––––––––––––––( )–––––|
| | 1 | 0 |
| |Drive 1 |Drive 1 | |
| |STOP |RUNNING | |
| |Command |Status | |
| |Bit |Bit | |
| | O:1.2 I:1.2 | |
| +–––] [––––––––] [––––+ |
| 0 1 |
| Drive 1 |
| Frequency |
| Reference |
| +MOV–––––––––––––––+ |
|–––––––––––––––––––––––––––––––––––––––––––––|MOVE +–|
| |Source N20:0| |
| | 0| |
| |Dest O:1.3| |
| | 0| |
| +––––––––––––––––––+ |