IOtech MultiScan 1200, Руководство пользователя

Страница: 213 / 364

TempScan / MultiScan User's Manual Chapter 13: System Operation 203
Buffer Buffer
Read Pointer > Scan -100 Read Pointer > Scan -100
Scan -099 Scan -099
Scan -098 Scan -098
…
Trigger Block
1 Pre-Trigger
Scans
…
Trigger Block
1 Pre-Trigger
Scans
Trigger Scan > Scan 000 Trigger Scan > Scan 000
Scan 001 Scan 001
… …
Scan 050 Scan 050
… …
Stop Scan > Scan 100
Trigger Block
1 Post-Trigger
Scans
Stop Scan > Scan 100
Trigger Block
1 Post-Trigger
Scans
Scan 101 Scan 101
… …
Write Pointer > Scan 150 Scan 150
… …
End Scan > N/A
Trigger Block
1 Post-Stop
Scans
End Scan > Scan 250
Trigger Block
1 Post-Stop
Scans
(3) The End scan has not yet occurred. (4) The Trigger Block is now complete.
Part 3 – The End scan has not yet occurred. The following describes a
U6
response when the Trigger event has
occurred, the Stop event has also occurred, but the End scan has not yet occurred. The Current Position of Read
Pointer field has the same value of the first available Pre-Trigger scan -100, but now an additional 100 Post-Trigger
scans plus 50 Post-Stop scans are available. The Time/Data stamping is in absolute ASCII format.
0000001,0000251,-0000100,12:01:43.100,08/29/96,0000100,12:25:01.300,
08/29/96,-0999999,00
Field Field Name Buffer Status String Response Response Description
1 Number of Trigger Blocks Available
0000001
One
2 Number of Scans Available
0000251
100 + 1 + 100 + 50
3
Current Position of Read Pointer
-0000100
Pre-Trigger Scan -100
4
Time/Date Stamping of Trigger Event
12:01:43.100,08/29/96
Absolute ASCII format
5
Position of Stop Event Pointer
0000100
Post-Trigger Scan 100
6 Time/Date Stamping of Stop Event
12:25:01.300,08/29/96
Absolute ASCII format
7 Position of End Scan Pointer
-0999999
Undefined
8 Status of Current Trigger Block
00
Still being acquired
Part 4 – The Trigger Block is now complete. The following describes a
U6
response when the Trigger event has
occurred, the Stop event has also occurred, and the End scan has also occurred. The Current Position of Read
Pointer field has the same value of the first available Pre-Trigger scan -100, and an additional 100 Post-Trigger
scans plus 150 Post-Stop scans are available. The Trigger Block is now complete. The Time/Data stamping is in
absolute ASCII format.
0000001,0000351,-0000100,12:01:43.100,08/29/96,0000100,12:25:01.300,
08/29/96,0000250,01
Field Field Name Buffer Status String Response Response Description
1
Number of Trigger Blocks Available
0000001
One
2
Number of Scans Available
0000351
100 + 1 + 100 + 150
3 Current Position of Read Pointer
-0000100
Pre-Trigger Scan -100
4 Time/Date Stamping of Trigger Event
12:01:43.100,08/29/96
Absolute ASCII format
5 Position of Stop Event Pointer
0000100
Post-Trigger Scan 100
6 Time/Date Stamping of Stop Event
12:25:01.300,08/29/96
Absolute ASCII format
7 Position of End Scan Pointer
0000250
Post-Trigger Scan 250
8 Status of Current Trigger Block
01
Acquisition complete
Query (U6) Buffer Operation – Single Trigger Block, Parts 3 & 4 (of 4)