Allen-Bradley 1747-SN User Manual page 119

5–42 RIO Block Transfer
Rung 2:9
THIS RUNG WILL EXECUTE BLOCK TRANSFER READS CONTINUOUSLY, AS FAST AS POSSIBLE.
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| VIRTUAL
| BTR ENABLE|BTR DONE
| BIT
| N7:50
|––––]/[––––––––]/[––––––––]/[––––––––––––––––––––––––––––––––––+––––(L)–––––+–|
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Rung 2:10
THIS RUNG WILL EXECUTE BLOCK TRANSFER WRITES CONTINUOUSLY, AS FAST AS POSSIBLE.
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| VIRTUAL
| BTW ENABLE|BTW DONE
| BIT
| N7:53
|––––]/[––––––––]/[––––––––]/[––––––––––––––––––––––––+–+COPY FILE
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Rung 2:11
MOVE THE VIRTUAL BTR CONTROL WORD TO THE M0 FILE FOR THE SN MODULE WHILE A BTR
IS IN PROGRESS, AND CONTINUE DOING SO UNTIL THE ENABLE , DONE AND ERROR BITS
ARE ALL TURNED OFF, COMPLETING THE HAND–SHAKE PROCESS.
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| VIRTUAL
| BTR ENABLE
| BIT
| N7:50
|–+––––] [–––––+––––––––––––––––––––––––––––––––––––––––––+MOVE
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| | VIRTUAL
| | BTR DONE
| | BIT
| | N7:60
| +––––] [–––––+
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| | VIRTUAL
| | BTR ERROR
| | BIT
| | N7:60
| +––––] [–––––+
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Publication 1747 6.6 - July 1996
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|VIRTUAL |VIRTUAL
|BTR ERROR
|BIT |BIT
N7:60 N7:60
15 13
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|VIRTUAL |VIRTUAL
|BTW ERROR
|BIT |BIT
N7:64 N7:64
15 13
15 |
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12
12
12
BTR
PENDING
B3
| 0
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| VIRTUAL
| BTR ENABLE | |
| BIT
| N7:50
+––––(L)–––––+ |
15
BTW DATA
+COP–––––––––––––––+
+–+–|
| |Source #N7:10| | |
| |Dest #M0:1.210| | |
| |Length 11| | |
| +––––––––––––––––––+ | |
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| VIRTUAL
| BTW ENABLE
| BIT
| N7:53
+––––(L)–––––––––––––––+ |
| 15
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| BTW
| PENDING
| B3
+––––(L)–––––––––––––––+ |
1
BTR
CONTROL
BITS
+MOV–––––––––––––––+ |
|Source N7:50| |
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|Dest M0:1.100| |
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+––––––––––––––––––+ |
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+–|
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