Measurement Computing TempScan/1100 - Manual (Page 244)

A-48 API Command Reference 889897 TempScan / MultiScan User’s Manual
Q
- Set Query Terminator
TYPE System
EXECUTION Deferred
SYNTAX Qresp,
hll,
scan,
block,
sep
Set the query terminators via the following parameters: resp is the response
terminator, hll is the channel terminator, scan is the scan terminator, and
block is the Trigger Block terminator.
sep is the separator terminator which determines whether or not a separator
character should be used. Valid options for sep are: 0 - Place no
separators in returned buffered scan data when it is read, and 1 - Place a
separator whose value is determined by the current Set User Terminator ( V )
command setting into the returned buffer data when it is read.
Q? Query current terminator settings.
DESCRIPTION
The Set Query Terminator (
Q ) command is used to set the data output terminators via the following parameters –
resp , hll , scan , block , and sep . Each of the first four arguments may be defined with one of the following
terminator types, where USER is the user-defined User Terminator corresponding to the ASCII decimal value
val , as defined by the Set User Terminator ( V ) command:
Terminator
Type
Terminator Description Terminator
Type
Terminator Description
IEEE-488 Serial IEEE-488 Serial
0 (None) (None)
1 CR LF/EOI CR LF 6 CR CR
2 CR LF CR LF 7 LF/EOI LF
3 LF CR/EOI LF CR 8 LF LF
4 LF CR LF CR 9 USER/EOI USER
5 CR/EOI CR 10 USER USER
The first argument
resp specifies the response terminator for general purpose queries which do not request
High/Low/Last or Acquisition Buffer data. The second argument hll specifies the channel terminator to be used
for High/Low/Last (HLL) Registers query requests. The third argument scan specifies the terminator which will
follow each scan that is output for Acquisition Buffer query requests, except when following the last scan in the
Trigger Block. In this case, the next argument
block specifies the terminator which will follow each Trigger
Block. The last argument sep specifies whether or not a reading separator character should be placed between
each returned reading in the Acquisition Buffer scan data. Like the USER terminator, this separator is a user-
defined User Terminator with the ASCII decimal value val , set via the Set User Terminator ( V ) command.
For more information on terminators, see section Data Format Configuration in the chapter System Configuration.
EXAMPLE
PRINT#1,"OUTPUT07;C1-2,1X" ‘ Configure two channels for Type J thermocouples
PRINT#1,"OUTPUT07;F0,0X" ‘ Configure Engineering Units, degrees C
PRINT#1,"OUTPUT07;Q7,7,0,0,0X" ‘ Set the resp and hll terminators to LF/EOI
PRINT#1,"OUTPUT07;Q?X" ‘ Get the current query terminators
PRINT#1,"ENTER07"
Q07,07,00,00,00
‘ Screen shows the current query terminators
PRINT#1,"OUTPUT07;U13X" ‘ Request the last readings
PRINT#1,"ENTER07" ‘ Get reading for Channel 1
INPUT#1 A$
+0104.20
‘ Screen shows reading
PRINT#1,"ENTER07" ‘ Get reading for Channel 2
INPUT#1 A$
+0010.40
‘ Screen shows reading
PRINT#1,"OUTPUT07;Q7,0,0,0,0X" ‘ Now set the resp terminator only to LF/EOI
PRINT#1,"OUTPUT07;U13X" ‘ Request the last readings
PRINT#1,"ENTER07" ‘ Get readings for Channels 1 through 4
INPUT#1 A$
+0104.20
+0010.40
' Screen shows readings for Channels 1 and 2
together, instead of one at a time