Diagnostic:otdetect[:State]; Diagnostic:otdetect[:State] <Enable>,(@<Ch_List>) - VXI VT1422A User Manual

DIAGnostic

DIAGnostic:OTDetect[:STATe]

Parameters
Comments
Note
Usage
284 VT1422A Command Reference
DIAGnostic:OTDetect[:STATe] <enable>,(@<ch_list>)
VT1422A's "Open Transducer Detection" capability (OTD). When Open Transducer
Detection is enabled, a very high impedance path connects all SCP channels to a
voltage source greater than 16 volts. If an enabled channel has an open transducer,
the input signal becomes the source voltage and the channel returns an input
over-range value. The value returned is +9.91E+37 (ASCII).
Parameter Parameter
Name Type
enable boolean (uint16)
ch_list channel list (string)
•
Open Transducer Detection is enabled/disabled on a whole Signal Conditioning
Plug-on basis. Selecting any channel on an SCP selects all channels on that SCP
(8 channels per SCP).
•
The DIAG:CAL:TARE:MODE <mode> command affects how OTD is controlled
during the CAL:TARE? operation. When <mode> is set to 0 (the *RST Default),
channels are tare calibrated with their OTD current off. When <mode> is 1,
channels that have their OTD current on
(DIAGnostic:OTDetect ON,(@<ch_list>)) are tare calibrated with their OTD
current left on.
•
Related Commands: DIAG:OTDETECT:STATE?, DIAG:CAL:TARE:MODE
*RST Condition: DIAG:OTDETECT OFF
If OTD is enabled when *CAL? or CAL:TARE is executed, the module will
disable OTD. Wait one minute to allow channels to settle, perform the calibration,
and then re-enable OTD.
•
Send with VXIplug&play Function: hpe1422_cmd(...)
DIAG:OTD ON,(@100:107,115:123)
DIAG:OTD:STATE ON,(@100,115)
DIAG:OTDETECT:STATE OFF,(@108)
enables and disables the
Range of
Values
1 | 0 | ON | OFF
100 - 163
select OTD for the first and third SCP
(complete channel lists for readability
only)
same function as example above (only
first channel of each SCP specified)
disable OTD for the 8 channels on the
second SCP (only first channel of SCP
specified)
Default
Units
none
none
Chapter 7