1747-6.22, Backup Scanner User Manual
1747-6.22, Backup Scanner User Manual
1747-6.22, Backup Scanner User Manual
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Control<br />
EN<br />
TO<br />
Status Flag<br />
EW<br />
ST<br />
ER<br />
DN<br />
1 3<br />
?<br />
2<br />
Block Transfer Failure at Startup<br />
Block Transfer Failure at Startup<br />
4<br />
RIO Block Transfer 7-117<br />
M0 Control Information<br />
M1 Status Information<br />
In the above example, the scanner found invalid control information<br />
(e.g., an improper logical address) in the M0 block transfer control<br />
buffer.<br />
1. The SLC control program fills in the M0 BT buffer and sets the<br />
EN flag.<br />
2. The scanner detects that the EN flag is set, determines that there<br />
is some invalid information in the M0 control buffer, fills in the<br />
M1 BT buffer status error code field, and sets the ER flag.<br />
3. The SLC control program detects the ER flag, examines the M1<br />
BT status buffer error code, and clears the EN flag after<br />
processing the error.<br />
4. The scanner detects that the SLC control program has processed<br />
the error and clears the ER flag.<br />
Note that in this example the EW and ST flags never set. Also, the<br />
SLC control program must clear the EN flag in order to start a new<br />
BT after the error has been corrected.<br />
Publication <strong>1747</strong>-<strong>6.22</strong>
Change language