IOtech MultiScan 1200, Руководство пользователя

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248 Chapter 15: Program Examples TempScan / MultiScan User's Manual
Acquiring Pre- & Post-Trigger Data at the Same Rate
TempScan/1100
Example 15g. FAST_ACQ.BAS Program
(1)
CLS : PRINT “The TempScan/1100 is resetting...”
PRINT #1, “OUTPUT 07;*RX”
(3)
SLEEP 10
(4)
S% = 0
WHILE (S% AND 4) = 0
PRINT #1, “SPOLL 07"
INPUT #2, S%
(8)
WEND
(9)
PRINT #1, “OUTPUT 07;C1-32,3X”
(10)
PRINT #1, “OUTPUT 07;C33-48,2X”
(11)
PRINT #1, “OUTPUT 07;Y50,100,200X”
(12)
PRINT #1, “OUTPUT 07;I00:00:00.1,00:00:00.1X”
(13)
PRINT #1, “OUTPUT 07;L1,20.0,0X"
(14)
PRINT #1, “OUTPUT 07;T4,5,0,0X"
(15)
PRINT “The TempScan/1100 is collecting Pre-Trigger data and has not
been triggered...”
PRINT “Waiting for Channel 1 to reach the Trigger level and start the
acquisition...”
(17)
WHILE (S% AND 2) <> 2
PRINT #1,“SPOLL 07”
INPUT #2, S%
WEND
PRINT “The Trigger level event has been detected...”
(22)
PRINT “Waiting for the Stop level event...”
(23)
WHILE (U% AND 1) <> 1
PRINT #1,“OUTPUT 07;U0X”
PRINT #1,“ENTER 07”
INPUT #2, U%
WEND
(28)
PRINT “The acquisition is now complete...”
(29)
PRINT #1, “OUTPUT 07;U6X”
PRINT #1, “ENTER 07"
LINE INPUT #2, U$
PRINT U$
UA$ = MID$(U$, 8, 6)
UA% = VAL(UA$)
PRINT UA%
(36)
PRINT #1, “The TempScan/1100 collected”; UA%; “scans of data.”
(37)
FOR i = 1 TO UA%
PRINT #1, “OUTPUT 07;R1X”
PRINT #1, “ENTER 14"
INPUT #2, SCAN$
PRINT “Scan ”; i; “ is :”
PRINT SCAN$
(43)
NEXT I
This program is
FAST_ACQ.BAS
in the
\EXAMPLES\
subdirectory. It will configure 48 thermocouple
channels, set up the TempScan/1100 for fast acquisition, and then bring the values into the controller
after the acquisition is complete. From a logic standpoint, the difference between this program and the
SLOW_ACQ.BAS
program is that this
FAST_ACQ.BAS
program reads blocks of data instead of one scan
at a time. This method is usually more efficient in case of fast scan intervals.