5–44 RIO Block Transfer
Publication
17476.6 - July 1996
COPY THE BTR STATUS AREA TO AN INTEGER FILE ONLY WHEN A BTR IS IN PROGRESS.
THIS STATUS DATA WILL THEN BE USED THROUGHOUT THE PROGRAM AND WILL LIMIT THE
NUMBER OF M–FILE ACCESSES.
| |
| |
| |
| BTR |
| PENDING BTR STATUS |
| B3 +COP–––––––––––––––+ |
|–+––––] [–––––+––––––––––––––––––––––––––––––––––––––––––+COPY FILE +–|
| | 0 | |Source #M1:1.100| |
| | | |Dest #N7:60| |
| | | |Length 4| |
| | | +––––––––––––––––––+ |
| | | |
| | | |
| | | |
| | CHECK BTR | |
| | STATUS | |
| | B3 | |
| +––––] [–––––+ |
| 2 |
Rung 2:2
UNLATCH THE BIT THAT CONTINUES TO CHECK THE BTR STATUS. WHEN A BTR IS
COMPLETE, THE DONE OR ERROR BIT IS SET. THE LADDER PROGRAM MUST THEN UNLATCH
THE ENABLE BIT, THEN WAIT FOR THE SN MODULE TO TURN OFF THE DONE/ERROR BIT
BEFORE ANOTHER BTR TO THE SAME M–FILE LOCATION CAN BE INITIATED. THIS IS ONE
COMPLETE BTR CYCLE.
| |
| |
| VIRTUAL |
| BTR DONE CHECK BTR |
| BIT STATUS |
| N7:60 B3 |
|–+––––]/[–––––+–––––––––––––––––––––––––––––––––––––––––––––––––––––––(U)–––––|
| | 13 | 2 |
| | | |
| | | |
| | VIRTUAL | |
| | BTR ERROR | |
| | BIT | |
| | N7:60 | |
| +––––]/[–––––+ |
| 12 |
Rung 2:3
COPY THE BTW STATUS AREA TO AN INTEGER FILE ONLY WHEN A BTW IS IN PROGRESS.
THIS STATUS DATA WILL THEN BE USED THROUGHOUT THE PROGRAM AND WILL LIMIT THE
NUMBER OF M–FILE ACCESSES.
| |
| |
| |
| BTW BTW |
| PENDING STATUS |
| B3 +COP–––––––––––––––+ |
|–+––––] [–––––+––––––––––––––––––––––––––––––––––––––––––+COPY FILE +–|
| | 1 | |Source #M1:1.200| |
| | | |Dest #N7:64| |
| | | |Length 4| |
| | | +––––––––––––––––––+ |
| | | |
| | | |
| | | |
| | CHECK BTW | |
| | STATUS | |
| | B3 | |
| +––––] [–––––+ |
| 3 |
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