Varec TankGate Interface 8315 Series User Manual
Page 69
8315 TGI
Varec, Inc.
59
gauges are read from the Fast Scan List. When a Normal Scan Cycle occurs, gauges are read
from the Normal Scan List.
The RKSCN point provides the ability to control the operation of the Fast Scan List. The RKSCN
point has several parameters that involved:
The number of gauges scanned during a Fast Scan Cycle is determined by the FastScanMax. If
the value is 0, then all L&J device points with the FastScanMode set to Enable will be scanned.
The Interleave parameter controls the number of gauges read during each Normal Scan Cycle.
Example – Default method, with 1 tank in the Fast Scan List
Interleave = 1, FastScanMax=0, FastScanTime=00:00:00, LJ2000.00.FastScanMode = Enable (ID
= 1).
Example –1 tank in the Fast Scan List
Interleave = 3, FastScanMax=0, FastScanTime=00:00:00, LJ2000.00.FastScanMode = Enable
Example – 6 tanks in the Fast Scan List
Interleave = 3, FastScanMax=2, FastScanTime=00:00:00, LJ2000.00.FastScanMode = Enable
Parameter
Description
Interleave
Number of points to scan during each Normal Scan Cycle
FastScanMax
Number of points to scan during each Fast Scan Cycle
FastScanTime
If defined, the FastScanTime is used to determine when Fast Scan
Cycles are performed
NumFastScan
Number of points in the Fast Scan List
(Fast Scan shown in shaded cells)
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
…
(ID = 1).
1
2
3
1
4
5
6
1
7
8
9
1
10
11
12
…
(Ids 1-6)
1
2
3
1
2
4
5
6
3
4
7
8
9
5
6
…