IOtech MultiScan 1200, User Manual

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318 Chapter 16: API Command Reference TempScan / MultiScan User's Manual
M#
- Set Measuring Mode
MultiScan/1200 only
TYPE System
EXECUTION Deferred
SYNTAX
M#mode
Specify measuring mode. Valid options for
mode
are:
0
- Line-cycle
integration / high-speed multi-channel mode, and
1
- Single-channel high-
speed burst mode.
DESCRIPTION
The Set Measuring Mode (
M#
) command selects one of the two basic internal measuring modes supported by
the MultiScan/1200 unit:
•
Line-Cycle Integration / High-Speed Multi-Channel (or Default) Mode . In the line-cycle integration / high-
speed multi-channel mode, the MultiScan/1200 samples channel data at 1.92 kHz or once every 520.83 µ s.
You can select the number of samples over which to average in order to accomplish noise filtering.
• Single-Channel High-Speed Burst Mode. In the single-channel burst mode, the MultiScan/1200 collects
data in user-defined multiples of 256 samples at a user-defined sampling frequency between 38.5 Hz and
20.0 kHz.
For more information on MultiScan/1200 measuring mode parameters, see section Measuring Modes
(MultiScan/1200 Only) in the chapter System Configuration , and see commands Set Burst Mode Frequency (
F#
)
and Set Averaging Weight (
W#
).
EXAMPLES
PRINT#1, “OUTPUT07;M#0X”
‘ Select Line Cycle Integration/High-Speed Multi-Channel Mode
PRINT#1, “OUTPUT07;W#32X”
‘ Select number of samples = 32
PRINT#1, “OUTPUT07;Y0,10,0X”
‘ Setup to read 10 Post-Trigger scans
PRINT#1, “OUTPUT07;C1-3,1X”
‘ Enable Channels 1 - 3 for thermocouples Type J
PRINT#1, “OUTPUT07;T1,8,0,0X”
‘ Arm the unit
PRINT#1, “OUTPUT07;@X”
‘ Trigger unit and collect scans
PRINT#1, “OUTPUT07;M#1X”
‘ Select Single Channel High-Speed Burst Mode
PRINT#1, “OUTPUT07;F#10000.0X”
‘ Set sampling frequency = 10 KHz
PRINT#1, “OUTPUT07;Y0,4096,0X”
‘ Set count to take a 1.0-megabyte amount of samples
PRINT#1, “OUTPUT07;C1,26X”
‘ Select Channel 1 for reading 250 Volts AC samples
PRINT#1, “OUTPUT07;T1,8,0,0X”
‘ Arm the unit
PRINT#1, “OUTPUT07;@X”
‘ Trigger unit and collect scans