Allen-Bradley 1747-SN - Page 111

5–34 RIO Block Transfer
Publication 17476.6 - July 1996
Rung 2:5
BLOCK TRANSFER READS WILL REPEAT AS FAST AS POSSIBLE AS LONG AS THESE RUNGS
ARE SCANNED.
| | | |
| | | |
| VIRTUAL |VIRTUAL |VIRTUAL |
| BTR ENABLE|BTR DONE |BT ERROR BTR |
| BIT |BIT |BIT PENDING |
| B3 B3 B3 B3 |
|––––]/[––––––––]/[––––––––]/[––––––––––––––––––––––––––––––––––+––––(L)–––––+–|
| 1615 13 12 | 80 | |
| | | |
| | | |
| | VIRTUAL | |
| | BTR ENABLE | |
| | BIT | |
| | B3 | |
| +––––(L)–––––+ |
| 1615 |
Rung 2:6
MOVE THE VIRTUAL CONTROL WORD TO THE M0 FILE FOR THE SN MODULE WHILE A BTR IS
IN PROGRESS AND CONTINUE DOING SO UNTIL THE SCANNER TURNS THE DONE/ERROR BIT
OFF.
| |
| |
| VIRTUAL |
| BTR ENABLE |
| BIT |
| B3 +MOV–––––––––––––––+ |
|–+––––] [–––––+––––––––––––––––––––––––––––––––––––––––––+MOVE +–|
| | 1615 | |Source B3:100| |
| | | | 0000000000000000| |
| | | |Dest M0:1.100| |
| | | | *| |
| | | +––––––––––––––––––+ |
| | | |
| | | |
| | VIRTUAL | |
| | BTR DONE | |
| | BIT | |
| | B3 | |
| +––––] [–––––+ |
| | 13 | |
| | | |
| | | |
| | VIRTUAL | |
| | BT ERROR | |
| | BIT | |
| | B3 | |
| +––––] [–––––+ |
| 12 |
Rung 2:7
| |
|–––––––––––––––––––––––––––––––––––––+END+––––––––––––––––––––––––––––––––––––|
| |