Rockwell Automation 1747-SN Remote I/O Scanner - Manual (Page 139)

Publication 1747-UM013B-EN-P - January 2005
Block Transfer Examples for Earlier Processors D-11
Rung 2:3
WHEN A BTR SUCCESSFULLY COMPLETES, BUFFER THE BTR DATA AND UNLATCH THE BTR
ENABLE BIT. ALSO, UNLATCH THE BTR PENDING BIT AND LATCH THE BIT THAT CONTINUES
CHECKING THE BTR STATUS UNTIL THE SN TURNS OFF THE DONE BIT.
| |
| |
| VIRTUAL |
| BTR DONE |
| BIT BTR DATA |
| B3 +COP---------------+ |
|----] [----------------------------------------------+-+COPY FILE +-+-|
| 13 | |Source #M1:1.110| | |
| | |Dest #N7:10| | |
| | |Length 64| | |
| | +------------------+ | |
| | | |
| | | |
| | | |
| | BTR | |
| | PENDING | |
| | B3 | |
| +----(U)---------------+ |
| | 80 | |
| | | |
| | | |
| | VIRTUAL | |
| | BTR ENABLE | |
| | BIT | |
| | B3 | |
| +----(U)---------------+ |
| | 1615 | |
| | | |
| | | |
| | | |
| | CHECK BTR | |
| | STATUS | |
| | B3 | |
| +----(L)---------------+ |
| 81 |
Rung 2:4
| |
| |
| VIRTUAL |
| BT ERROR |
| BIT |
| B3 +MOV---------------+ |
|----] [----------------------------------------------+-+MOVE +-+-|
| 12 | |Source M1:1.103| | |
| | | *| | |
| | |Dest N7:9| | |
| | | 0| | |
| | +------------------+ | |
| | | |
| | | |
| | | |
| | BTR | |
| | PENDING | |
| | B3 | |
| +----(U)---------------+ |
| | 80 | |
| | | |
| | | |
| | VIRTUAL | |
| | BTR ENABLE | |
| | BIT | |
| | B3 | |
| +----(U)---------------+ |
| | 1615 | |
| | | |
| | | |
| | | |
| | CHECK BTR | |
| | STATUS | |
| | B3 | |
| +----(L)---------------+ |
| 81 |